Help you find high quality Octrizole

Octrizole is a kind of performance excellence efficient antiaging additives, soluble in benzene, ethyl acetate, styrene slightly soluble in ethanol, insoluble in water, can absorb 270-340 nm UV light, is widely used in PP PE PVC PS PC ABS resin epoxy resin fiber polypropylene fiber and ethylene vinyl acetate, etc., and can be used in plastic containers and food packaging, packaging materials, provides them with good light stability effect.

It is used for polystyrene, polymethyl methacrylate, polyester, rigid PVC, polycarbonate, ABS resin. We should store it in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. 

When you storage and handing Octrizole(CAS NO:3147-75-9), you have something need to watch: Wash thoroughly after handling. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.

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1.AFINE CHEMICALS LIMITED
Updatetime:Feb 11 2014
Min. Order:1/Gram Supply Ability:10 Month/Metric Ton
DetailDesc:Octrizole；2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole
Tel:86-571-85232161
Address:6th Floor, Block C, 7th Building, Xigang Xinjie, Xihu Industrial Park, Sandun Town, Hangzhou, China

2.AOPHARM
Octrizole
Updatetime:Feb 11 2014
Purity:99%
DetailDesc:White powder
Tel:86-311-66600578
Address:C-2103 Wonder Business Square, 15 Yuhua West Rd.

3.Hangzhou Dayangchem Co., Ltd.
Updatetime:Feb 11 2014
DetailDesc:2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole
Tel:86-571-88938639
Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China
4.run-biotech Co., Ltd.
Updatetime:Feb 08 2014
DetailDesc:Phenol, 2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)-
Tel:86-21-61900721
Address:Room 3-201, No.787, Kangqiao Road, Pudong New District, Shanghai, China

5.Shanghai UCHEM Inc.
Octrizole
Updatetime:Feb 11 2014
DetailDesc:Octrizole;2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol
Tel:086-021-61555264
Address:4th Floor,Build A,500Jianyun Road,Zhoupu,Pudong,Shanghai

6.Andexin industrial Co.,Limited
Octrizole
Updatetime:Feb 10 2014
Min. Order:1/Gram Supply Ability:10 Month/Metric Ton
DetailDesc:Octrizole；2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole
Tel:86-411-39074598
Address:No.98,Shengli road,,Jinzhou district,

7.Angene International Limited
Octrizole
Updatetime:Jan 08 2014
DetailDesc:You can find Octrizole with most competitive price and high quality here. Welcome to inquire for stock confirming.
Tel:852-852-81916999
Address:4/F Silvercord Center Tower 1, 30 Canton Rd,KL,Hong Kong

8.Hangzhou Shangyou Chemistry Co., Ltd
Octrizol
Updatetime:Jan 13 2014
Purity:99%min
Tel:86-571-87211453
Address:RM.1101,Yuntian Fortune center,No.63 Huancheng North Road,Hangzhou,China

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Import and export of 4-Chloropyridine hydrochloride

4-Chloropyridine hydrochloride is a light yellow crystalline powder, with Synonyms: 4-Chloropyridinium chloride and 4-Chloropyridine HCL. It is stable at room temperature in closed containers under normal storage and handling conditions. Store it in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. The Molecular Formula is C5H5Cl2N, Molecular Weight is 150.01.

Here are some supply information about 4-Chloropyridine hydrochloride(CAS NO:7379-35-3) in guidechem. Guidechem offers you with plenty of opportunities to easy find and direct contact target chemical manufacturers & suppliers all over the world. Besides, Guidechem provides you with the opportunities to post your special buying requests for potential chemical suppliers sending prompt offers to you directly.

Supplier one :Hangzhou Dayangchem Co., Ltd.
4-Chloropyidine hydrochloride
Updatetime:Feb 11 2014
DetailDesc:4-Chloropyidine hydrochloride
Tel:86-571-88938639
Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China

Supplier two:Shanghai Dell Chemical Co.Ltd
4-Chloropyridine hydrochloride
Updatetime:Feb 08 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

Supplier three:Capot Chemical Co., Ltd.
Updatetime:Jan 27 2014
Purity:98% Min. Order:1/Kilogram Supply Ability:up to kgs Month/Kilogram
DetailDesc:150.01,C5H5Cl2N
Tel:86-571-85586718
Address:Joinhands Science Park, No.4028,Nanhuan Road

Supplier four:Nanjing Norris-Pharm Technology Co., Ltd.
Updatetime:Jan 23 2014
Purity:97% Min. Order:
DetailDesc: Pharmaceutical intermediates Nanjing Norris Pharm Technology Co., Ltd. is a major focus in pharmaceutical R & D outsourcing service .we provides chemical synthesis outsourcing services for new drug research and development projects for international pharmaceutical companies, customers are mainly concentrated in Europe , the United State.
Tel:86-25-66112881
Address:A1100 Cultural and Creative Industrial Park 5th Jiangning Road Nanjing 210006 China

Supplier five:Struchem Co Ltd
Updatetime:Jan 14 2014
Purity:95%min Min. Order:1,5,25/Gram Supply Ability:kilograms Day/kilograms
Tel:86-512-63009836
Address:No. 2358 Chang'an Rd, Wujiang City, JiangSu Province, China 215200

Supplier six:HEBEI CUI FENG IMPORT&EXPORT TRADE CO.,LTD
4-Chloropyidine hydrochloride
Updatetime:Feb 11 2014
Supply Ability:Success 
DetailDesc:4-Chloropyidine hydrochloride
Tel:86-311-80955068
Address:No 98 Gongnong Street,Shijiazhuang Hebei,China

Supplier seven:Jinan Haohua Industry Co., Ltd.
4-Chloropyridine Hydrochloride
Updatetime:Feb 11 2014
Tel:0086-531-58773055
Address:No.59 Gongye South RD
Introduction:Haohua Industry is a large group corporation which engaged in the R & D and manufacture of chemicals. We have earned ourselves a good reputation at home and abroad with advanced technology, standardized management and well established service systerm.

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Applications of Methyl 3-aminocrotonate

Methyl 3-aminocrotonate is a yellowish semi-solid with Molecular Formula: C5H9NO2 and Molecular Weight: 115.13. It is stable at room temperature in closed containers under normal storage and handling conditions. Keep container closed when not in use it. Store Methyl 3-aminocrotonate in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed. The CAS Registry Number is 14205-39-1.

Methyl 3-aminocrotonate is a member of short and unsaturated cahin carboxylic acids; trans-2-butenoic acid in IUPAC sysytem name and 3-methylacrylic acid in acrylic acid series naming. It is a white to off-white crystals; soluble in water (the solution is a weak acid); melting at 71 C; boiling at 185 C. Methyl 3-aminocrotonate reacts violently with bases, oxidants, reducing agents. 

It is found in croton oil used as a standard irritant in pharmacological research; laxative and poisonous to human. Tiglic acid is structurally the trans- form of methyl branched Methyl 3-aminocrotonate found in croton oil (trans-2,3-Dimethylacrylic acid in acrylic acid series naming). The cis- form of methyl branched crotonic acid is called angelic acid obtainable naturally from roots of Angelica plant. 

They are onoclinic poisonous crystals; soluble in hot water. They have a reactive double bond and carboxylic group in one molecule. They can be used as co-monomers for polymerization to prepare functional polymers as well as in protein sequencing and enzyme inhibiting. 

Methyl 3-aminocrotonate is used as intermediate for the syntheses of pharmaceuticals (e.g. 1,4-dihydropyridine derivatives) as well as for the manufacture of stabilizers and plastics.

Methyl 3-aminocrotonate derivatives, acyl halides, anhydrides, esters, amides and nitriles, are used in making target products such as flavoring agents, internal plasticizers, pesticides, dyes, textile treatment agents, fungicides, and pharmaceuticals through further reactions of substitution, catalytic reduction, metal hydride reduction, diborane reduction, keto formation with organometallic reagents, electrophile bonding at oxygen, and Claisen condensation on carboxylic group and electrophilic additions, reduction, oxidation, radical additions, substitution and dienes formation on double bond. Methyl 3-aminocrotonate is used in manufacturing Nitrendipine (chemically, Ethyl methyl 1,4-dihydro-2,6-dimethyl-4-(m-nitrophenyl)-3,5-pyridinedicarboxylate), a drug to treat mild hypertension.

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Diethyl carbonate is used as a solvent

Diethyl carbonate is a carbonate ester of Diethyl carbonateand ethanol with the formula OC(OCH2CH3)2. At room temperature diethyl carbonate is a clear liquid with a low flash point. It is colourless liquid with a mild odour with Molecular Weight is 118.13. Diethyl carbonate has the synonyms:Ethyl carbonate or Carbonic acid. The CAS Registry Number is 105-58-8.

It is negligible, stable, flammable, incompatible with strong acids, strong bases, reducing agents, oxidizing agents. Protect from moisture. It should be stored in flammables area. Diethyl carbonate can be made by reacting phosgene with ethanol, producing hydrogen chloride as a byproduct. This reaction is the base of why ethanol is added to chloroform in a 1% quantity by mass.
2CH3CH2OH + COCl2 → OC(OCH2CH3)2 + 2HCl

Diethyl carbonate is used as a solvent such as in erythromycin intramuscular injections. It can be used as a component of electrolytes in lithium batteries. Diethyl Carbonate(CAS NO:105-58-8) is a solvent of both extraction and reaction used in many industries; pharmaceuticals; agrochemicals; hydrocarbon refinery; paint and coatings and fragrances; It is used as a methylation and carbonylation agent in organic synthesis. It can be used as fuel and lube additive.

Diethyl carbonate is a carbon-containing dibasic acid which has two acidic hydrogen atoms in the same molecule. The other common example of dibasic acid is sulfuric acid (H2SO4). Diethyl carbonateis formed in solution when its anhydride is dissolved in water, existing only in equilibrium. The equilibrium is important for organisms to perform certain vital functions. The body fluids must maintain a constant pH. For example, blood must maintain a pH of close to 7.4 in order to carry oxygen from the lungs to cells. 

Diethyl carbonate has two acidic hydrogens and can lose one or two protons. The presence of pure Diethyl carbonateis not possible as even a single molecule of water causes the Diethyl carbonateto revert to carbon dioxide and water fairly quickly. Pure Diethyl carbonatecan be found if there is no water absolutely. 

Diethyl carbonate itself is a stronger acid than acetic acid or formic acid due to the influence of the electronegative oxygen substituent. Considering the equilibrium constant, however, the majority of the carbon dioxide is not converted into Diethyl carbonateand so such solutions are fairly weak. 

Diethyl carbonate forms two series of salts when combined with positive or basic atoms or radicals; the hydrogencarbonate which contain the hydrogencarbonate ion HCO3- formed when the first proton is removed and the carbonate which contain the carbonate ion, CO32- formed when the second proton is removed. 

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What is Dichloroethane used for

Dichloroethane is a colorless, oily, organic liquid with a sweet, chloroform-like odor with Molecular Formula: C2H4Cl2 and Molecular Weight: 98.96 . It is commonly known by its old name of ethylene dichloride, is a chlorinated hydrocarbon, mainly used to produce vinyl chloride monomer , the major precursor for PVC production. Dichloroethane is also used generally as an intermediate for other organic chemical compounds and as a solvent. It forms azeotropes with many other solvents, including water and other chlorocarbons. The CAS Registry Number is 107-06-2.

The greatest use of Dichloroethane is in making chemicals involved in plastics, rubber and synthetic textile fibers. Other uses include: as a solvent for resins and fats, photography, photocopying, cosmetics, drugs, and as a fumigant for grains and orchards. EPA regulates dichloroethane(CAS NO:107-06-2) in drinking water to protect public health. Dichloroethane may cause health problems if present in public or private water supplies in amounts greater than the drinking water standard set by EPA.

As a good polar aprotic solvent, dichloroethane could be used as degreaser and paint remover but is now banned from use due to its toxicity and carcinogenity. As a useful 'building block' reagent, it is used as an intermediate in the production of various organic compounds such as ethylenediamine. In the laboratory it is occasionally used as a source of chlorine, with elimination of ethene and chloride.

In 1794, physician Jan Rudolph Deiman, merchant Adriaan Paets van Troostwijk, chemist Anthoni Lauwerenburg, and botanist Nicolaas Bondt, under the name of Gezelschap der Hollandsche Scheikundigen, were the first to produce dichloroethane from olefiant gas and chlorine gas. Although the Gezelschap in practice did not do much in-depth scientific research, they and their publications were highly regarded. Part of that acknowledgement is that dichloroethane has been called "Dutch oil" in old chemistry.

The major source of dichloroethane in drinking water is discharge from industrial chemical factories.A federal law called the Emergency Planning and Community Right to Know Act (EPCRA) requires facilities in certain industries, which manufacture, process, or use significant amounts of toxic chemicals, to report annually on their releases of these chemicals.

Some people who drink water containing dichloroethane well in excess of the maximum contaminant level for many years may have an increased risk of getting cancer. This health effects language is not intended to catalog all possible health effects for dichloroethane. Rather, it is intended to inform consumers of some of the possible health effects associated with dichloroethane in drinking water when the rule was finalized.

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Ketotifen fumarate used as medicine

Ketotifen fumarate is a second-generation noncompetitive H1-antihistamine and mast cell stabilizer. It is most commonly sold as a salt of fumaric acid, Ketotifen fumarate fumarate, and is available in two forms. In its ophthalmic form, it is used to treat allergic conjunctivitis,or the itchy red eyes caused by allergies. In its oral form, it is used to prevent asthma attacks. Side effects include drowsiness, weight gain, dry mouth, irritability, and increased nosebleeds.

Ketotifen fumarate (CAS NO:34580-14-8) is marketed as ophthalmic solutions under the brand names Zaditor/Zaditen, Alaway , Zyrtec Itchy-Eye Drops, and Claritin Eye. A generic version of Novartis' Zaditor, Ketotifen fumarate fumarate ophthalmic solution, 0.025%, is available from Perrigo and distributed as store brands, such as Eye Itch Relief from Walgreens.

Ketotifen fumarate (CAS NO:34580-14-8) is used to prevent and treat itching of the eyes caused by allergies. Ketotifen fumarate is an antihistamine for the eye that treats allergic symptoms by blocking a certain natural substance. It is also a mast cell stabilizer that prevents allergic reactions by reducing the release of natural substances that cause an allergic reaction.

If you are using the over-the-counter product, read all directions on the product package before using this medication. If your doctor has prescribed Ketotifen fumarate, use it exactly as directed.

Apply 1 drop to the affected eye(s), usually twice a day (every 8 to 12 hours) or as directed by the package instructions or your doctor. Dosage is based on your medical condition and response to treatment. To apply eye drops, wash your hands first. To avoid contamination, do not touch the dropper tip or let it touch your eye or any other surface.

For topical ophthalmic use only. Not for use on the skin, in the ear, or for injection into eye.Ask patient to tilt head back and instill prescribed number of drops into affected eye(s) as ordered. Ask patient to close eye(s) for 2 to 3 min and apply light finger pressure to lacrimal sac for 1 to 2 min after installation. 

Do not touch top of dropper bottle to eye, fingers, or any other surface.If using other topical ophthalmic medications, separate each medication by at least 5 min. Instill ophthalmic ointment last.

Ketotifen fumarate relieves and prevents eye itchiness and/or irritation associated with most seasonal allergies. It starts working within minutes after administering the drops. Ketotifen fumarate has not been studied in children under three. The mean elimination half life is 12 hours. Besides its anti-histaminic activity, it is also a functional leukotriene antagonist and a phosphodiesterase inhibitor. Ketotifen fumarate may also help relieve the symptoms of Irritable bowel syndrome.


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Learning some safe information about Phenyl ether

Phenyl ether is a kind of clear pale yellowish liquid after melting, it is insoluble,used in organic synthesis. The Molecular Formula is C12H10O, Molecular Weight is 170.21. Melting point: -30C ,Boiling point: 172 C, Refractive index: 1.507(20C), Flash point: 63 C. The CAS Registry Number of Phenyl ether is 101-84-8.

It can be used in dyeing synthetic fibers, both as a dye solubilizer and as a dye carrier. Ethylene glycol phenyl ether can also be used in paints and varnishes, soaps, cosmetics, perfumes, and cleaning products. It may cause moderate irritation or moderate corneal injury,

Here are some safe information about Phenyl ether(CAS NO: 101-84-8) you may need to know. Eye contact with ethylene glycol phenyl ether may cause moderate irritation and corneal injury. 

Prolonged skin exposure is unlikely to cause significant irritation. A more severe response may result on covered skin (under clothing, gloves). Prolonged skin contact is unlikely to result in absorption of harmful amounts. However, repeated skin contact may result in absorption of harmful amounts. 

In animal studies, excessive exposure caused hemolysis (breakage of red blood cells) and secondary effects to the kidneys and liver. Hemolysis impairs the blood's ability to transport oxygen and excessive exposure to ethylene glycol phenyl ether can aggravate preexisting diseases of the kidneys, liver or blood (like anemia). However, human red blood cells have been shown to be significantly less susceptible to hemolysis than those of the test animals. 

At room temperature, vapor exposure is minimal because of this material’s low volatility. However, vapor from heated material may cause eye and nose irritation and cause drowsiness.  Ethylene glycol phenyl ether has a low toxicity if swallowed. Small amounts swallowed incidental  to normal handling operations are not likely to cause injury. However, swallowing larger amounts  may cause injury. 

In animal studies, effects from repeated exposure have been reported on the red blood cells, kidney, liver, thyroid, and respiratory tract. Ethylene glycol phenyl ether did not cause birth defects or other effects in the fetus, even at doses that caused toxic effects in the mother. Repeated exposures had no effect on reproductive organs. In vitro genetic toxicity and animal genetic toxicity studies were both negative.

Ethylene glycol phenyl ether is readily biodegradable, and its potential for bioconcentration is low. Its potential for mobility in soil is high. It is practically nontoxic to aquatic organisms. 

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