Product name:Dimethylsulfate
CAS: 77-78-1
Molecular Formula: C2H6O4S
Molecular Weight: 126.13
Product description:Colorless or light yellow, slightly onion smell of oily combustible liquid, quickly at 50 ℃ or alkaline hydrolysis into sulfuric acid and methanol. Decompose slowly in the cold water. Encounter heat, open flame or antioxidant combustible. Dimethyl sulfate is can make the reagent of DNA methylation. After methylation, DNA in methylation position degradation.Used in the manufacture of dyes and the amine and alcohol methylation agent. Analytical reagent. Organic synthesis, methylation reagent. Solvents. Its vapour toxicity is strong, have been used as war gas. Used for the determination of coal tar class reagent, used as a methyl replace agent in organic synthesis.
2017年7月11日星期二
Methanesulfonyl chloride
Product name:Methanesulfonyl chloride
CAS: 124-63-0
Molecular Formula: CH3ClO2S
Molecular Weight: 114.55
Product description:A colorless or light yellow liquid, insoluble in water, soluble in ethanol, ethyl ether, melting point - 32 ℃, boiling point: 164 ℃.Methane sulfonyl chloride and compounds with active hydrogen reaction extremely easily, can be used to react with amino, hydroxyl, the introduction of methane sulfonyl. The goods production mesylate in raw materials, used as a catalyst for the esterification and polymerization, liquid sulfur dioxide stabilizer, anthraquinone, carbazole VAT dye chlorinating agent, drying oil quick-drying agent of printing ink, coating, polyester dyeing improver, hair color photographs of regulator, dimethyl benzene, naphthalene and formaldehyde condensation agent, wool dyeing auxiliaries, etc. Also widely used as the raw material of medicine and pesticide.
CAS: 124-63-0
Molecular Formula: CH3ClO2S
Molecular Weight: 114.55
Product description:A colorless or light yellow liquid, insoluble in water, soluble in ethanol, ethyl ether, melting point - 32 ℃, boiling point: 164 ℃.Methane sulfonyl chloride and compounds with active hydrogen reaction extremely easily, can be used to react with amino, hydroxyl, the introduction of methane sulfonyl. The goods production mesylate in raw materials, used as a catalyst for the esterification and polymerization, liquid sulfur dioxide stabilizer, anthraquinone, carbazole VAT dye chlorinating agent, drying oil quick-drying agent of printing ink, coating, polyester dyeing improver, hair color photographs of regulator, dimethyl benzene, naphthalene and formaldehyde condensation agent, wool dyeing auxiliaries, etc. Also widely used as the raw material of medicine and pesticide.
Carbonyl sulfide price
Product name:Carbonyl sulfide
CAS: 463-58-1
Molecular Formula: COS
Molecular Weight: 60.08
Product description:This product is a colorless, odorless gas, m.p. - 138.2 ℃, b.p. - 50 ℃, relative density 0.986, gas density 2.688 g/L (standard conditions), 30 ℃ vapor pressure 1.5 MPa, dissolve solubility (25 ℃) 100 mL water, 0.122 g 100 ethanol solution volume unit 100 units, 100 of the 1500 volume unit of the toluene solution of unit volume, this product is a toxic and make the burning gas.Used in organic synthesis intermediates, pesticide industrial herbicide used in synthesis, Dan padan, oats, pesticide and so on.
CAS: 463-58-1
Molecular Formula: COS
Molecular Weight: 60.08
Product description:This product is a colorless, odorless gas, m.p. - 138.2 ℃, b.p. - 50 ℃, relative density 0.986, gas density 2.688 g/L (standard conditions), 30 ℃ vapor pressure 1.5 MPa, dissolve solubility (25 ℃) 100 mL water, 0.122 g 100 ethanol solution volume unit 100 units, 100 of the 1500 volume unit of the toluene solution of unit volume, this product is a toxic and make the burning gas.Used in organic synthesis intermediates, pesticide industrial herbicide used in synthesis, Dan padan, oats, pesticide and so on.
Disodium dihydrogenpyrophosphate
Product name:Disodium dihydrogenpyrophosphate
CAS: 7758-16-9
Molecular Formula: Na2H2O7P2
Molecular Weight: 219.924
Product description:1. Used for quick starter, water retention agent, quality improver, used in bread, biscuits and other baked goods, meat and aquatic products etc. Make quality improver, improve food complexation metal ions, pH, and ionic strength increases, thus improving food and focus on and hold water. The biggest usage rules can be used for soda biscuit, 3.0 g/kg; The bread in the maximum usage of 1.0 ~ 3.0 g/kg. 2. Used for baking powder, used in baking food, controlled fermentation speed, increase production strength; Used in instant noodles, to reduce the finished products after water time, non-stick is not bad. Used in biscuits cakes, shorten fermentation time, lower breakage, loose gap, can prolong the storage period.
CAS: 7758-16-9
Molecular Formula: Na2H2O7P2
Molecular Weight: 219.924
Product description:1. Used for quick starter, water retention agent, quality improver, used in bread, biscuits and other baked goods, meat and aquatic products etc. Make quality improver, improve food complexation metal ions, pH, and ionic strength increases, thus improving food and focus on and hold water. The biggest usage rules can be used for soda biscuit, 3.0 g/kg; The bread in the maximum usage of 1.0 ~ 3.0 g/kg. 2. Used for baking powder, used in baking food, controlled fermentation speed, increase production strength; Used in instant noodles, to reduce the finished products after water time, non-stick is not bad. Used in biscuits cakes, shorten fermentation time, lower breakage, loose gap, can prolong the storage period.
Buy Potassium biphthalate
Product name:Potassium biphthalate
CAS: 877-24-7
Molecular Formula: C8H5KO4
Molecular Weight: 204.22
Product description:Colorless monoclinic crystal or white crystalline powder. Stability in the air, soluble in water, slightly soluble in alcohol. Soluble in about 12 copies of cold water, 3 copies of boiling water, slightly soluble in alcohol. Acidic solution. 25 ℃ 0.05 mol/L solution of pH 4.005.Take 660 g caustic potash (85%), soluble in 1 l of water. Add in heat, stirring the phthalic anhydride 1480 g, 0.5 h heating reaction, filtering. Condensed the filtrate to saturation, let cool to room temperature, suction out crystallization, drying, the finished product.Analytical reagent. Benchmark of alkali content, preparation buffer solution.
CAS: 877-24-7
Molecular Formula: C8H5KO4
Molecular Weight: 204.22
Product description:Colorless monoclinic crystal or white crystalline powder. Stability in the air, soluble in water, slightly soluble in alcohol. Soluble in about 12 copies of cold water, 3 copies of boiling water, slightly soluble in alcohol. Acidic solution. 25 ℃ 0.05 mol/L solution of pH 4.005.Take 660 g caustic potash (85%), soluble in 1 l of water. Add in heat, stirring the phthalic anhydride 1480 g, 0.5 h heating reaction, filtering. Condensed the filtrate to saturation, let cool to room temperature, suction out crystallization, drying, the finished product.Analytical reagent. Benchmark of alkali content, preparation buffer solution.
Hydrazine sulfate for sale
Product name:Hydrazine sulfate
CAS: 10034-93-2
Molecular Formula: H6N2O4S
Molecular Weight: 130.12
Product description:Colorless or white prismatic crystal or powder. Soluble in hot water, slightly soluble in cold water, not soluble in ethanol. 0.2 mol/L solution of pH 1.3. Relative density 1.378. Melting point 254 ℃ (decomposition). Have a strong reduction. Oxidant easy cause explosion.The weight determination of nickel, cobalt and cadmium. Arsenic determination chlorate, hypochlorous acid, carbonyl compounds, and hydroxyl. Purification of rare metal, isolated from tellurium polonium. Reducing agent. In organic synthesis. Liver function test preparation of thymol turbidity in the fluid. Hydrazine sulfate is a nutritional supplements in the United States to fight cancer patients caused by anorexia, angular wait for a symptom.
CAS: 10034-93-2
Molecular Formula: H6N2O4S
Molecular Weight: 130.12
Product description:Colorless or white prismatic crystal or powder. Soluble in hot water, slightly soluble in cold water, not soluble in ethanol. 0.2 mol/L solution of pH 1.3. Relative density 1.378. Melting point 254 ℃ (decomposition). Have a strong reduction. Oxidant easy cause explosion.The weight determination of nickel, cobalt and cadmium. Arsenic determination chlorate, hypochlorous acid, carbonyl compounds, and hydroxyl. Purification of rare metal, isolated from tellurium polonium. Reducing agent. In organic synthesis. Liver function test preparation of thymol turbidity in the fluid. Hydrazine sulfate is a nutritional supplements in the United States to fight cancer patients caused by anorexia, angular wait for a symptom.
2017年7月6日星期四
Ethyl chloroacetate price
Product name:Ethyl chloroacetate
CAS: 105-39-5
Molecular Formula: C4H7ClO2
Molecular Weight: 122.55
Product description:Colorless transparent liquid. There are spicy irritating smell. Insoluble in water, soluble in ethanol, ethyl ether.By chloroacetic acid and ethanol esterification. Chloroacetic acid and ethanol by direct esterification sulfuric acid as catalyst. The crude ester by alkaline neutralization, water washing and distillation in finished products.Can be used for the preparation of pesticides azole aphid and herbicides grass ethyl spirit of raw material, also can be used in the synthesis of antineoplastic drugs 5 - fluorouracil and spices, etc.
CAS: 105-39-5
Molecular Formula: C4H7ClO2
Molecular Weight: 122.55
Product description:Colorless transparent liquid. There are spicy irritating smell. Insoluble in water, soluble in ethanol, ethyl ether.By chloroacetic acid and ethanol esterification. Chloroacetic acid and ethanol by direct esterification sulfuric acid as catalyst. The crude ester by alkaline neutralization, water washing and distillation in finished products.Can be used for the preparation of pesticides azole aphid and herbicides grass ethyl spirit of raw material, also can be used in the synthesis of antineoplastic drugs 5 - fluorouracil and spices, etc.
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