2017年6月2日星期五

2,2'-Dipyridyl price

Product name:2,2'-Dipyridyl
CAS
: 366-18-7
Molecular Formula: C10H8N2
Molecular Weight: 156.1839
Product description:White to pale red crystalline powder. The melting temperature of 69.5 ℃, boiling point 69.5 ℃. Soluble in ethanol, ethyl ether, benzene, chloroform and petroleum ether, 1 200 about soluble in water.1. The goods as the analytical reagent, used for ferrous verification, molybdenum, silver, cadmium, REDOX indicator. 2. Used for spectrophotometric determination of iron, silver, cadmium and molybdenum metal elements such as chromogenic agent. And the complexes of Fe2 + REDOX indicator. Al pyridine - iron complex cation can be used as precipitating agent of some anions and extraction agent.

1,10-Phenanthroline

Product name:1,10-Phenanthroline
CAS
: 66-71-7
Molecular Formula: C12H8N2·H2O
Molecular Weight: 198.22
Product description:Light yellow powder, absorbing water after the formation of crystal water color deepened, slightly soluble in water to form a pale yellow to yellow solution. When water recrystallization, containing a molecular crystal water. 91.5 ℃ melting point (102 ℃). Benzene, recrystallization, excluding water of crystallization, melting point of 98 ~ 100 ℃ (117 ℃). Above the boiling point of 360 ℃. Soluble in ethanol, benzene, acetone, insoluble in petroleum ether. And iron, copper, cobalt, nickel and 2, 2 '- pyridine to form complexes, and Fe2 + form red complexes, using potassium permanganate oxidation to 2, 2' - 2 pyridyl - 3, 3 'dicarboxylic acid. Can be used for quantitative colorimetric reagent of copper, iron, and can be used as the use of cerium sulfate titration indicator of iron salts; Also can be used for dye of animal fiber.

Loxoprofen price

Product name:Loxoprofen
CAS
: 68767-14-6
Molecular Formula: C15H18O3
Molecular Weight: 246.3
Product description:This product is a nonsteroidal anti-inflammatory analgesic, has significant analgesic, anti-inflammatory and antipyretic effect, especially strong analgesic action. This product is a prodrug, after gastrointestinal absorption into the active metabolite and play a role. The following diseases and symptoms of anti-inflammatory and analgesic, rheumatoid arthritis, osteoarthritis, waist painful disease, around the shoulder joint inflammation, neck shoulder and wrist syndrome. After surgery, trauma, and the analgesic and anti-inflammatory after tooth extraction. The following disorders antipyretic and analgesic: acute upper respiratory tract infection (including acute upper respiratory tract infection with acute bronchitis).

4-Nitrobenzyl bromide

Product name:4-Nitrobenzyl bromide
CAS
: 100-11-8
Molecular Formula: C7H6BrNO2
Molecular Weight: 216.032
Product description:Colorless or light yellow acicular crystal, a tear.Insoluble in water, soluble in ethanol, ether and most organic solvents.Organic synthesis intermediates, pesticides on used in synthesis of pesticides fluorine cyclic urea, also as a medicine, dye intermediates, general reagents and organic analytical reagent.

Guanosine hydrate

Product name:Guanosine hydrate
CAS
: 118-00-3
Molecular Formula: C10H13N5O5
Molecular Weight: 283.2407
Product description:White or white crystalline powder. Melting point is 250 ℃.Slightly soluble in water, insoluble in ethanol, ethyl ether, soluble in acetic acid.Mainly used in the manufacture of acyclovir and three oxygen nucleoside, sodium GTP drugs such as the main raw material.

Uric acid

Product name:Uric acid
CAS
: 69-93-2
Molecular Formula: Uric acid
Molecular Weight: 168.11
Product description:Birds and reptiles of the main metabolites, slightly soluble in water, easy to form crystals. Normal human body in the urine, products mainly for urea, containing a small amount of uric acid. Uric acid is the end product of purine metabolism. Purine for three oxygen radicals, the alcohol type in weak acid. All kinds of purine generated uric acid with the urine after oxidation.

Calcium nitrite

Product name:Calcium nitrite
CAS: 
13780-06-8
Molecular Formula: CaNO2
Molecular Weight: 86.083
Product description:Colorless or light yellow crystalline, deliquescence1. Widely used in reinforced concrete engineering, used as cement hardening accelerator and frost resistance rust agent, concrete each add 2% of the calcium nitrate, the construction of the reinforced concrete structures can increase 15 ~ 20 years of life. Used in pharmaceutical industry, corrosion inhibitors of organic synthesis and lubricating oil. 2. Used in organic synthesis and pharmaceutical industry.