2017年7月6日星期四

M-Phenylenediamine

Product name:M-Phenylenediamine
CAS:
 108-45-2
Molecular Formula:C6H8N2 
Molecular Weight: 108.1411
Product description:1. Used as analytical reagent, resin curing agent and the inhibitor, also used in the synthesis of dye. Azo dye and azine dye intermediates, mainly used in the manufacture of direct fast black RN, alkaline orange, alkaline brown G, direct fast black G dye, and used as fur dyes, in Japan, azo dye consumption m-phenylene diamine accounted for 90% of total consumption. Is also used as a coagulant, cement and used for dyeing water, mordant, chromogenic agent, etc. 2. This product is used as a curing agent for epoxy resin. Curing conditions for 30 min + 80 ~ 90 ℃ / 150 ℃ / 1 ~ 2 h. Mainly used for laminated products, casting products and glue, etc. The liquid epoxy resin is 14 ~ 16. Curing of heat resistance, drug resistance, excellent electrical performance, even at high temperatures can keep these features. This product is azo dyes and oxazine dye intermediates, and used as coagulant of fur dyes and cement, etc.
 

O-Chloroaniline

Product name:O-Chloroaniline
CAS
: 95-51-2
Molecular Formula: C6H6ClN
Molecular Weight: 127
Product description:1. Used as a dye intermediates, solvents, fungicide and reagent. As the intermediate of pesticide, synthetic resin, etc. Dye was used to prepare ice base, that is, yellow base GC. Also as azo dye (acid black, acid blue) of the diazo component, used in the production of solid yellow R, and perhaps forever red FR, han sand yellow HR, etc. 2. Used in making medicine, pesticide and polyurethane resin crosslinking agent methyl double chloroaniline. Also can be used in organic synthesis. 3. Used as a dye intermediates, solvents, fungicide and reagent.
 

How to buy 3-Nitrophenol

roduct name:3-Nitrophenol
CAS
: 554-84-7
Molecular Formula: C6H5NO3
Molecular Weight: 139.11
Product description:Colorless to light yellow crystal.Slightly soluble in water, soluble in ethanol, ethyl ether, acetone, dilute acid and alkali solution, etc.By nitroaniline by diazotization; Hydrolysis. Between the nitrobenzene in dilute sulphuric acid, mix slowly cooled to below 0 ℃. Aqueous solution under stirring slowly adding sodium nitrite, and keep the temperature is below 15 ℃, after completion of diazotization reaction liquid should be dark brown transparent liquid. The diazonium salt again at 125 ℃ of hot mix slowly dilute sulphuric acid, adding insulation after 1 to 2 h. Put cold, crystallization will filter out, washed with water to pH = 3-4, drain, vacuum distillation for a quick finished products.Used as the indicator, fungicides and used in organic synthesis.

2-Nitrophenyl β-D-galactopyranoside

Product name:2-Nitrophenyl β-D-galactopyranoside
CAS
: 369-07-3
Molecular Formula: C12H15NO8
Molecular Weight: 301.25
Product description:White crystalline powder. Soluble in water, methanol and water solubility can be up to 15 mg/ml, has the water absorbability.Scientific research and experiment. Used to test the beta - galactose glucoside enzyme (beta) - galactosidase activity, is beta galactose glucoside enzyme chromogenic substrate. After beta galactose glucoside enzyme to produce yellow product, in 410-420 - nm wavelength can detect absorbance.

Phenol for sale

Product name: Phenol
CAS
: 108-95-2
Molecular Formula:C6H5OH 
Molecular Weight: 94.11
Product description:Room temperature for a colorless crystals, are poisonous. Phenol is a kind of common chemicals, the production of certain resin, fungicides, preservatives and important raw material of drugs (eg, aspirin). Phenol corrosive, room temperature slightly soluble in water, soluble in organic solvents. When the temperature higher than 65 ℃, can with water in any proportion miscibility. Stick to its solution available alcohol washing on the skin, the pink phenol exposed to air.In chemical raw materials, alkylphenol, synthetic fibre, plastic, synthetic rubber, medicine, pesticide, spices, dye, paint and oil refining industry has an important purpose.

Ethylbenzene price

Product name:Ethylbenzene
CAS
: 100-41-4
Molecular Formula: C8H10
Molecular Weight: 106.16
Product description:An aromatic organic compounds, is primarily used in the petrochemical industry as intermediates of styrene production, made of styrene is generally used for the preparation of commonly used plastic products of polystyrene. Although there is a small amount of ethyl benzene in crude oil, but mass production is still on the acid catalytic reaction of benzene with ethylene under. Ethyl benzene by catalytic dehydrogenation, generate hydrogen and styrene. Ethyl benzene also exist with some paint.Mainly for the production of styrene, thus producing styrene homopolymer and styrene AS the main composition of the copolymer (ABS, AS, etc.). Ethyl benzene a few used in organic synthesis industry, such as the production of acetophenone, ethyl anthraquinone, p-nitrophenyl ethyl ketone, methyl phenyl ketone and other intermediates. As the intermediate of sintomycin and chloramphenicol in medicine. Also used to spice. In addition, also can be used as a solvent.

Dichloroethane

Product name:Dichloroethane
CAS
: 107-06-2
Molecular Formula: C2H4Cl2
Molecular Weight: 98.96
Product description:Folding traits Colorless transparent oily liquid. Have a pleasant smell. Sweet taste. Volatile. Quality, and the weight. With ethanol, chloroform and ether immiscible, water soluble in about 120. Relative density (d204) 1.2569. Freezing point to 40 ℃. The boiling point of 83 ~ 84 ℃. Refractive index (n20D) 1.4443. Flash point (closed cup) 13 ℃. Flammable.Mainly used in the manufacture of vinyl chloride, oxalic acid and ethylene diamine, and as a solvent, grain fumigants, detergent, to take off the oil extraction agent, metal, etc.; Used as a solvent; Used as organic solvent and oil extraction agent, also used in organic synthesis.