Summaize something about 3-Bromo-5-fluoropyridine

In this article, I will summaize something about 3-Bromo-5-fluoropyridine for you. Firstly, I will show you the basic chemical and physical properties about it, then introduce you a online hot supply platform Guidechem where you can buy or sell 3-Bromo-5-fluoropyridine or any other chemicals, at last I will show some safe cautions about this chemical. Now let’s start it.

Chemical and physical properties:

Product name: 3-Bromo-5-fluoropyridine
Product Number Brand : 646296
Molecular Formula: C5H3BrFN 
Molecular Weight:175.99 g/mol
Synonyms:5-Bromo-3-fluoropyridine
Density:1.707g/cm3
Boiling Point:78 C
Melting Point:24-28C
Flash Point:148C
Appearance:Colorless liquid
CAS Registry Number:407-20-5
Identified uses : Laboratory chemicals, Manufacture of substances

Supply information on Guidechem

1.Capot Chemical Co., Ltd.
Updatetime:Jan 09 2014
Purity:98% Min. Order:1/Kilogram Supply Ability:up to kgs Month/Kilogram
DetailDesc:175.99,C5H3BrFN
Tel:86-571-85586718
Address:Joinhands Science Park, No.4028,Nanhuan Road

2.Hangzhou Dayangchem Co., Ltd.
3-Fluoro-5-bromopyridine(CAS NO:407-20-5 )
Updatetime:Jan 09 2014
DetailDesc:3-Fluoro-5-bromopyridine
Tel:86-571-88938639
Address:B/2601 Fuli Building, 328 WenEr Rd. Hangzhou City 310012 China

3.Hui Chem Company Limited
Updatetime:Jan 09 2014
Purity:98% Min. Order:1/Gram Supply Ability:10 Month/Kilogram
DetailDesc:We could receive custom synthesis according to your requirements from lab scale to commercial scale
Tel:86-21-60542966
Address:Lane 299 Bisheng Rd,Pudong District

4.Shanghai UCHEM Inc.
Updatetime:Jan 09 2014
DetailDesc:3-bromo-5-fluoropyridine
Tel:086-021-61555264
Address:4th Floor,Build A,500Jianyun Road,Zhoupu,Pudong,Shanghai

5.China Huanyu Chemical Industrial Co.,Ltd
Updatetime:Jan 09 2014
DetailDesc:3-bromo-5-fluoropyridine
Tel:86-310-6034055
Address:Maoyi Road,Hanshan District,Handan

Safe information:

1.First aid measures
Eye contact: Check for and remove any contact lenses. IMMEDIATELY flush  Eyes with running water for at least 15 minutes while keeping eyes open. COLD water may be used. Seek medical attention. 
Skin contact: After contact with skin, wash with plenty of water. Gently and thoroughly wash the contaminated skin with running water and non-abrasive soap. COLD water may be used. Cover the irritated skin with an emollient. Seek medical attention. Wash any contaminated clothing before reusing. 
Inhalation: Remove victim from source of exposure to fresh air. If breathing is difficult administer oxygen. Seek medical attention. 
Ingestion: Do not induce vomiting. Give water to victim to drink. Seek medical attention.

2.Fire measures
Extinguishing media: carbon dioxide, dry chemical powder, alcohol or polymer foam. 
Special fire-fighting procedures: Wear self-contained breathing apparatus and protective 
clothing to prevent contact with skin and eyes. 
Unusual fire and explosion hazards/decomposition of product: emits toxic fumes under fire 
conditions. 

3.Handing and storage
Do not breathe 3-Bromo-5-fluoropyridine dust or vapor. Have safety shower and eye wash available. Do not get 3-Bromo-5-fluoropyridine in eyes, on skin, on clothing. Keep container tightly closed. Store 3-Bromo-5-fluoropyridinein a cool, dry, well-ventilated area. Ensure adequate ventilation during use. Use only in a chemical fume hood. Avoid sources of ignition. 

Want to learn more supply information about 3-Bromo-5-fluoropyridine or any other chemicals, you can access the guidechem.com. Guidechem provide the most convenient conditions for the international buyers and let these leads benefit all the business people.

Really good Cetirizine hydrochloride

Cetirizine hydrochloride is an antihistamine. It blocks the activity of histamines or inflammatory chemicals that cause inflammation reactions in the body due to exposure to allergens. Its Molecular Formula is C21H25ClN2O3.2(HCl), Molecular Weight is 461.80968, and CAS Registry Number is 83881-52-1.It is a major metabolite of hydroxyzine, and a racemic selective H1 receptor inverse agonist.

Cetirizine hydrochloride is an antihistamine that treats symptoms, such as itching, runny nose, watery eyes, and sneezing from hay fever (allergic rhinitis) and other allergies, such as allergies to molds and dust mites. 

According to McNeil Consumer Healthcare. It is sold in doses for adults and children, and it is also available as a generic drug. According to the FDA, it is sold in 5-milligram and 10-milligram tablets over the counter. It is also available by prescription as a syrup with 5 mg of cetirizine hydrochloride(CAS NO:83881-52-1) per 5 mL of fluid.

Here are some suppliers of Cetirizine hydrochloride, you can find the useful trade information after read this article.

1.Run-biotech Co., Ltd.
Updatetime:Jan 08 2014
DetailDesc:Acetic acid
Tel:86-21-61900721
Address:Room 3-201, No.787, Kangqiao Road, Pudong New District, Shanghai, China

2.Hangzhou Dayangchem Co., Ltd.
Updatetime:Jan 08 2014
DetailDesc:Cetirizine Hydrochloride
Tel:86-571-88938639
Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China

3.Wuhan Fortuna Chemical Co., Ltd.
Updatetime:Jan 07 2014
Purity:99% Min. Order:1/Kilogram Supply Ability:1-100 Year/Metric Ton
DetailDesc:CAS: 83881-52-1 M.F.:C21H27Cl3N2O3 M.W.:461.8097
Tel:0086-27-59207850
Address:A2705,Dong Yi Shi Qu,129# XinHua Road

4.AFINE CHEMICALS LIMITED
Updatetime:Jan 07 2014
Min. Order:1/Gram Supply Ability:10 Month/Metric Ton
DetailDesc:cetirizine hcl
Tel:86-571-85232161
Address:6th Floor, Block C, 7th Building, Xigang Xinjie, Xihu Industrial Park, Sandun Town, Hangzhou, China

5.Shanghai Dell Chemical Co.Ltd
Updatetime:Jan 06 2014
Purity:NLT99% Min. Order:1/Kilogram Supply Ability:100 Year/Metric Ton
DetailDesc:Shanghai Dell Chemical Co.Ltd. is specialized in trading and developing active pharmaceutical ingredients, intermediates, API, and custom synthesis according to client’s requirements.
Tel:86-21-51950635
Address:Nianjiabang Rd, Pudong, Shanghai

6.Atomax Chemicals Co.,Ltd
Cetirizine hydrochloride
Updatetime:Dec 11 2013
Purity:95+% Supply Ability:g/kg 
DetailDesc:Atomax Chemicals Co.,Ltd a leading global supplier and manufacturer of chiral chemicals, amino acids, aromatic and pyridine halogens, natural extracts and pharmaceutical raw materials. we are a registered chemicals provider for most giant pharmaceutical company like Merck, Pfizer, Novartis, Roche, Astrazeneca, Sanofi-Aventis, etc.
Tel:86-755-33239182
Address:Huiji302 Hutingju Sanwei Xixiang SHENZHEN 518126, China

7.Andexin industrial Co.,Limited
Cetirizine hydrochloride
Updatetime:Jan 08 2014
Min. Order:1/Gram Supply Ability:10 Month/Metric Ton
DetailDesc:cetirizine hcl
Tel:86-411-39074598
Address:No.98,Shengli road,,Jinzhou district

Want to learn more supply information about Cetirizine Hydrochloride or any other chemicals, you can access the guidechem.com. Guidechem chemical B2B network provides information on china and global chemical market quotation and relative chemical Information.Guidechem Chemical Network providing the most complete information of the chemical industry.

Help you find high quality 2-fluoroaniline

Basic properties 

Molecular Formula: C6H6FN
Molecular Weight:111.12
Solubility: slightly soluble
Stability: Stable under normal temperatures and pressures.
Appearance: clear to brown liquid
Preparation: It can be obtained by 1-fluoro-2-nitro-benzene.
EC NO : 261-034-1
CAS Registry Number: 348-54-9
Usages: It is used as intermediate of medicine, pesticide and dye. It also can react with phthalic acid anhydride to get N-(2-fluoro-phenyl)-phthalimide. 

Supplier information

1.Hangzhou Dayangchem Co., Ltd.
Updatetime:Jan 07 2014
DetailDesc:2-Fluoroaniline
Tel:86-571-88938639
Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China

2.Atomax Chemicals Co.,Ltd
2-Fluoroaniline(CAS NO: 348-54-9)
Updatetime:Dec 11 2013
Purity:98% Supply Ability:g/kg 
DetailDesc:Atomax Chemicals Co.,Ltd a leading global supplier and manufacturer of chiral chemicals, amino acids, aromatic and pyridine halogens, natural extracts and pharmaceutical raw materials. we are a registered chemicals provider for most giant pharmaceutical company like Merck, Pfizer, Novartis, Roche, Astrazeneca, Sanofi-Aventis, etc.
Tel:86-755-33239182
Address:Huiji302 Hutingju Sanwei Xixiang SHENZHEN 518126, China

3.AOPHARM
Updatetime:Jan 07 2014
Purity:99%
DetailDesc:Clear colorless to brown liquid
Tel:86-311-66600578
Address:C-2103 Wonder Business Square, 15 Yuhua West Rd.

4.Nanjing Norris-Pharm Technology Co., Ltd.
Updatetime:Mar 29 2013
Purity:97% Min. Order:
DetailDesc:Pharmaceutical intermediates
Tel:86-25-66112881
Address:A1100 Cultural and Creative Industrial Park 5th Jiangning Road Nanjing 210006 China

5.Capot Chemical Co., Ltd.
Updatetime:Jan 06 2014
Purity:98% Min. Order:1/Kilogram Supply Ability:up to kgs Month/Kilogram
DetailDesc:111.12,C6H6FN
Tel:86-571-85586718
Address:Joinhands Science Park, No.4028,Nanhuan Road

6.Jinan Haohua Industry Co., Ltd.
Updatetime:Jan 07 2014
Purity:99 Min. Order:1/Kilogram Supply Ability:100 Year/Metric Ton
DetailDesc:o-Fluoroaniline; 1-Amino-2-fluorobenzene
Tel:0086-531-58773055
Address:No.59 Gongye South RD

7.Shanghai UCHEM Inc.
Updatetime:Jan 07 2014
DetailDesc:2-Fluoroaniline
Tel:086-021-61555264
Address:4th Floor,Build A,500Jianyun Road,Zhoupu,Pudong,Shanghai

8.Boc Sciences
2-Fluoroaniline
Updatetime:Dec 20 2013
DetailDesc:2-Fluoroaniline
Tel:1-631-5046093
Address:45-16 Ramsey Road Shirley, NY 11967, USA

9.Shijiazhuang Sdyano Fine Chemical Co., Ltd
Updatetime:Jan 07 2014
Tel:86-311-89830448
Address:Room 37-2-2501, Yiyuan Dong Gang Jianshe Nan Stree
Introduction:Shijiazhuang Sdyano Fine Chemical Co., Ltd. is a company specializing in pharmaceutical intermediates, liquid crystal intermediates, PDLC LCD, OLED LCD, such as fine chemicals R & D, production and sales of integrated chemical enterprise modernization. Our company has three subsidiaries: R & D center, production base and sales. 

10,Nanjing Chemlin Chemical Co., Ltd.
2-Fluoroaniline
Updatetime:Jan 02 2014
Purity:99.50%
DetailDesc:2-Fluoroaniline
Tel:86-25-83697070
Address:Rm.902 Longyin Plaza, No. 217 Zhongshan Rd.(N) Nanjing 210009,China

11.Beijing Hengrun Weiyuan
2-fluoroaniline
Updatetime:Oct 06 2013
Tel:+86-(10)-6969-6397
Address:Room A624, No.58 Liangguan Road, Fangshan District, Beijing 102000,
Introduction:Profile: Beijing Hengrun Weiyuan Biotechnologies, Inc. deals with research, development, manufacturing & marketing of pharmaceuticals and intermediates.

Want to learn more information about 2-fluoroaniline, you can access the guidechem.com.  Guidechem provide the most convenient conditions for the international buyers and let these leads benefit all the business people.

Summary information of Citalopram Hydrobromide

Chemical and physical properties

Molecular Formula: C20H22BrFN2O or C20H21FN2O
Molecular Weight:405.31
Synonyms:5-isobenzofurancarbonitrile,1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3; Citalopram Hydrobromide Tablets
Boiling Point:182-188 C
Melting Point:182-188 C
Flash Point:212.8 C
Storage Temperature:-20 C Freezer
Solubility:Sparingly soluble in water and soluble in ethanol.
Stability:Stable. Incompatible with strong oxidizing agents.
Appearance:White Crystalline Powder
EINECS:261-890-6
CAS Registry Number:59729-32-7
Usage:An inhibitor of serotonin (5-HT) uptake. Used as an antidepressant.

Approval and usages of Citalopram Hydrobromide

Citalopram is an antidepressant drug of the selective serotonin reuptake inhibitor (SSRI) class. It has U.S. Food and Drug Administration (FDA) approval to treat major depression, which it received in 1998 and is prescribed off-label for other conditions. In UK, Germany, Portugal, Poland, and most European countries it is licenced for depressive episodes and panic disorder with or without agoraphobia. In Spain it is also used for obsessive-compulsive disorder.

Citalopram hydrobromide(CAS NO:59729-32-7) is a medicine which is used in depression and panic disorder. It is used to treat a variety of mental health problems. It is thought that Citalopram hydrobromide increases the activity and levels of certain chemicals in the brain. This can improve symptoms such as depression and anxiety. It is used for treating most depression cases, except for bipolar depression, as it may actually aggravate the symptoms, or cause sudden unprecedented and rapid mood swings from depressive moods to manic moods. 

Side effects of Citalopram Hydrobromide

Common side effects of Citalopram Hydrobromide include drowsiness, insomnia, nausea, weight changes, vivid dreaming, frequent urination, decreased sex drive, anorgasmia, dry mouth, increased sweating, trembling, diarrhea, excessive yawning, and fatigue.

However, just as there are two sides of every coin, there are certain citalopram hydrobromide serious side effects that people taking this medication must be aware of.

One of the side effects is the development of an allergic reaction to citalopram hydrobromide. There are certain people who have an idiosyncratic allergy to this drug. In such cases, normally after a single dose itself, the person starts developing an allergic reaction to it, like rashes, itching, fever, irritability, excessive sweating etc.

Another most dangerous side effect is the possibility of citalopram hydrobromide causing suicidal thinking and suicidal tendencies if taken on a long term basis. This may especially occur if the person develops another parallel depressive disorder. This is one of the reasons why this drug is not given to anyone below 18 years of age.

Suppliers in guidechem

1.Hangzhou Dayangchem Co., Ltd.
Citalopram Hydrobromide
Updatetime:Jan 06 2014
DetailDesc:Citalopram Hydrobromide
Tel:86-571-88938639
Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China

2.AFINE CHEMICALS LIMITED
Citalopram Hydrobromide
Updatetime:Jan 03 2014
Min. Order:1/Gram Supply Ability:10 Month/Metric Ton
DetailDesc:Citalopram HBr
Tel:86-571-85232161
Address:6th Floor, Block C, 7th Building, Xigang Xinjie, Xihu Industrial Park, Sandun Town, Hangzhou, China

Some questiones about Malic acid

Malic acid is a kind of colorless, crystalline compounds, the molecule formula is COOHCH2CHOHCOOH, that occurs naturally in a wide variety of unripe fruit, including apples, cherries, and tomatoes, and is used as a flavoring and in the aging of wine.

In winemaking, when certain bacteria convert Malic acid(CAS NO:636-61-3) to lactic acid (which is much less strong and sour), a process called "malolactic fermentation" occurs. This reduces the wine's tartness, adds complexity to the flavor and sometimes contributes a slight sparkle.Malic acid is used as an acidulant as well as a flavoring agent in the processing of some foods.

What is differnece in D(+)-Malic acid and L-malic acid?

There are two different structures of malic acid(CAS NO:636-61-3), L-Malic acid and D(+)-Malic acid. The only difference between the two is that they rotate the light shining on them in two different directions. L-Malic acid is produced naturally in fruits. 90% of the acid in apples is malic acid. When malic acid is produced synthetically, a mixture of the two isomers is obtained which is called DL-malic acid (because it contains both D(+)- and L-malic acid). When you eat DL-malic acid, your body digests it in just the same way as it does for L-malic acid. It is part of the Krebs cycle. 

Is malic acid a natural product?

There are two forms of malic acid; the L-Malic acid is found naturally in most fruits and many vegetables in varying amounts. Of the total acid content in apples, 90-98% is L-malic acid. Malic acid can also be produced synthetically from maleic anhydride. It is impossible to choose whether natural L-malic acid or the unnatural D(+)-Malic acid is formed during synthesis so a mixture of the two is formed, often called DL-malic acid. It is most likely that if malic acid is used as an additive, it is the synthetic DL-malic acid. The body metabolises the two forms in exactly the same way.

How is malic acid purified?

Malic acid can be produced in a pure form by crystallising it out of water when it has been made synthetically from maleic anhydride, which in turn is made simply from butane gas. This reaction process leads to a mixture of the two malic acid isomers. To purify the natural form of L-malic acid, it is necessary to remove it from apples or other fruits where malic acid is present in a high concentration. This can be done by fractionated distillation. Green apples are best for this since 90% of the acid present in them is malic acid.

Want to learn more information about Malic acid, you can access the guidechem.com. 

Let’t study something about 2,6-Dihydroxyacetophenone

Molecular Formula:C8H8O3
Molecular Weight:152.15
HS Code:29145000
Solubility:50 mg/mL in dioxane
Density:1.291 g/cm3
Boiling Point:262.8  C at 760 mmHg
Melting Point:155-158 C
Flash Point:127 C
Appearance:yellowish-beige powder
EINECS:211-833-6
CAS Registry Number:699-83-2
Stability:Stable at room temperature in closed containers under normal storage and handling conditions.
Storage Temperature: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

2,6-Dihydroxyacetophenone(CAS NO: 699-83-2), three-necked round-bottomed flask is fitted with a reflux condenser, a dropping funnel, and a glass tube, extending to the bottom of the flask, connected to a cylinder of nitrogen. 

In the flask are placed 148 g. (0.68 mole) of 4-methyl-7-hydroxy-8-acetylcoumarin and 500 ml. of distilled water. A rapid stream of nitrogen is bubbled through the water suspension until all the air in the apparatus is displaced, and then a slow stream of the gas is kept passing through the solution. 

A solution of 129 g. (3.23 moles) of sodium hydroxide in 580 ml. of water is added through the dropping funnel, and the mixture is heated on a steam bath for 5 hours. The solution is then cooled and acidified by the addition of about 1 l. of dilute (1:3) hydrochloric acid. The stream of nitrogen gas is continued throughout the period of heating and while the solution is cooling. It may be stopped after the solution is acid. 

The crude 2,6-Dihydroxyacetophenone which separates on acidification is collected on a filter, washed three times with 50-ml. portions of cold water, and air-dried. A yield of 90-95 g. (87-92% based on the 4-methyl-7-hydroxy-8-acetylcoumarin) of light-yellow solid is obtained.

The purification is accomplished by dissolving the crude product in 1 l. of 95% ethanol, adding 20 g. of Norit, and heating the mixture on a steam cone for 15 minutes with occasional shaking. After this time, 800 ml. of warm water is added, and the solution is heated 5 more minutes and filtered through a hot funnel. 

The greenish filtrate is chilled in an ice-salt bath, and the first crop (about 65 g.) of lemon-yellow needles of 2,6-Dihydroxyacetophenone is removed by filtration. The filtrate is then concentrated under reduced pressure to a volume of 800 ml., again chilled, and the second crop of product (about 15 g.) collected on a filter. The total yield of purified 2,6-Dihydroxyacetophenone, melting at 154-155 C, is 75-85 g. (a recovery of 83–89%) .

Want to learn more information about 2,6-Dihydroxyacetophenone, you can access the guidechem.com. Guidechem chemical B2B network provides information on china and global chemical market quotation and relative chemical Information. Guidechem Chemical Network providing the most complete information of the chemical industry.

Introduce you supply information of Azamethiphos

Azamethiphos is an organothiophosphate insecticide. It is a veterinary drug used in Atlantic salmon fish farming to control parasites. Chemical Formula is C9-H10-Cl-N2-O5-P-S, Molecular Weight is 324, Therapeutic Category is Insecticide,CAS registry number (Chemical Abstracts Service) is 35575-96-3.

Guidechem.com is just a place for you to look for some chemicals. Our guidechem provide the most convenient conditions for the international buyers and let these leads benefit all the business people. Guidechem chemical B2B network provides information on china and global chemical market quotation and relative chemical Information. Guidechem Chemical Network providing the most complete information of the chemical industry. Here, I will show you some suppliers of Azamethiphos(CAS NO: 35575-96-3) in guidechem.

1.Capot Chemical Co., Ltd.
Updatetime:Dec 31 2013
Purity:98% Min. Order:1/Kilogram Supply Ability:up to kgs Month/Kilogram
DetailDesc:324.68,C9H10ClN2O5PS
Tel:86-571-85586718
Address:Joinhands Science Park, No.4028,Nanhuan Road

2.AOPHARM
Updatetime:Dec 31 2013
Purity:99%
DetailDesc:white to light yellow crystal powder
Tel:86-311-66600578
Address:C-2103 Wonder Business Square, 15 Yuhua West Rd.

3.Hangzhou Dayangchem Co., Ltd.
Updatetime:Dec 31 2013
DetailDesc:Azamethiphos
Tel:86-571-88938639
Address:B/2601 Fuli Building, 328 WenEr Rd. Hangzhou City 310012 China 

4.Jinan Haohua Industry Co., Ltd.
Updatetime:Dec 31 2013
Purity:99 Min. Order:1/Kilogram Supply Ability:100 Year/Metric Ton
Tel:0086-531-58773055
Address:No.59 Gongye South RD

5.Andexin industrial Co.,Limited
Updatetime:Dec 31 2013
Min. Order:1/Gram Supply Ability:1 Month/Metric Ton
Tel:86-411-39074598
Address:No.98,Shengli road,,Jinzhou district,
Introduction:Andexin industrial Co.,Limited was established in 2001. Our company is a professional high-tech enterprise located in China northeast, enjoying convenient transportation access, and its products have been issued with ISO 9001:2008. Our products has been exported to more than twenty countries and won good reputation among our old customers.

6.China Huanyu Chemical Industrial Co.,Ltd
Updatetime:Dec 31 2013
DetailDesc:Azamethiphos
Tel:86-310-6034055
Address:Maoyi Road,Hanshan District,Handan

7.Shanghai UCHEM Inc.
Updatetime:Dec 30 2013
Tel:086-021-61555264
Address:4th Floor,Build A,500Jianyun Road,Zhoupu,Pudong,Shanghai
Introduction:Shanghai UCHEM Inc. has been focusing on development and manufacturing of advanced intermediates for optoelectronic materials, pharmaceuticals, and agrochemicals, and earned a reputation as leading provider of innovative, high quality chemicals. We are committed to exceeding the customer’s expectations.

8.Boc Sciences
Updatetime:Dec 20 2013
DetailDesc:Azamethiphos
Tel:1-631-5046093
Address:45-16 Ramsey Road Shirley, NY 11967, USA

9.Shanghai Pengteng Fine Chemical Co., Ltd.
Azamethiphos
Updatetime:Oct 17 2013
DetailDesc:Our company keeps the business tenet of “people first and customer esteemed” and the service principle of “superior quality, reasonable price, good faith”. We insist on the principle of win-win cooperation and would like to create brilliant future hand in hand with you!
Tel:86-15262230-560
Address:No.9, Haikou Road, Huai'an Industiral Park, Jiangsu Province, China

10.Win-Win chemical Co.Ltd
Azamethiphos
Updatetime:Jul 06 2013
DetailDesc:Azamethiphos
Tel:86-577-64498589
Address:Wenzhou china

Want tofind more supply information about Azamethiphos or any other chemicals , you can access the guidechem.com.