L-Cysteine monohydrochloride Raw Materials powder

CAS:52-89-1

MF:C3H8ClNO2S

MW:157.62

EINECS:200-157-7

Specification: 99% min L-Cysteine monohydrochloride powder

Sample:L-Cysteine monohydrochloride powder

Packaging:1kg/bag, 25kg/drum

Brand: Henrikang

Appearance: White

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

L-Cysteine monohydrochloride powder Usage and Synthesis.

L-Cysteine HCL is a sulfur-containing amino acid that regulates metabolism and promotes growth, reproduction and immunity. Clinically, it can treat leukopenia, heavy metal poisoning antidote, toxic hepatitis, thrombocytopenia, skin ulcers, and prevent hepatic necrosis.

In addition, it has the effect of treating bronchitis and resolving phlegm, detoxifying effect on propylene glycol and aromatic poisoning, and preventing radiation damage. In food, L-cysteine hydrochloride as bread improver can promote fermentation and prevent oxidation.

Uses of L-Cysteine monohydrochloride powder.

Used in the treatment of radioactive drug poisoning, heavy metal poisoning, toxic hepatitis, serum sickness, and can prevent hepatic necrosis. Used as a component in perm essence, sunscreen, hair growth perfume and hair care essence of cosmetics; used as a food additive to prevent the oxidation and discoloration of vitamin C; used in bread to promote the formation of cereal protein and fermentation, out of the mold and so on.

NMDA Glutamatergic receptor agonist, also AMPA glutamatergic receptor agonist at high concentrations.

System of L-Cysteine monohydrochloride powder.

Hair hydrolysis with hydrochloric acid, distillation under reduced pressure, distillation of hydrochloric acid after decolorization, filtration, take the filtrate with ammonia and neutralization of L-cystine crude crystals, and then dissolved in ammonia and neutralization, recrystallization, hydrochloric acid and electrolytic reduction, concentration, cooling, crystallization, drying system.

Product Method of Bulk L-Cysteine monohydrochloride powder.

Hydrolysis-electrolysis method to pig hair, hair as raw materials by hydrolysis, adjust the isoelectric point of cystine separation of cystine, and then electrolysis reduction of cystine, the production of cysteine.

Hydrolysis to separate out cystine pig hair, hair [HCl, 117 ℃, 7h] → [acid hydrolysis] hydrolysis solution [NaOH, pH 4.8] → [neutralization] L-cystine (crude) electrolytic reduction of cystine in two separate pools, a pool filled with 1 mol / L HCl inserted into the ink stick, connected to the positive pole of the power supply, this pool for the anode, the other pool is filled with cystine in the hydrochloric acid solution (cystine: concentrated) HCl:water=1:1:4), inserted into the lead plate, connected to the negative pole of the power supply, this pool is the cathode. Add salt bridge connection between two pools.

Turn on the power to adjust the current 5A, electrolysis, about 6-7h electrolysis is completed. Take a little electrolyte drops of pyridine, no turbidity indicates that the electrolysis is complete.L-cysteine [HCl] → [electrolysis reduction] L-cysteine hydrochloride [decolorization, concentration, crystallization] → L-cysteine hydrochloride crystallization decolorization, concentration, crystallization electrolysis is complete, cut off the power supply, according to the amount of feed to add 10g / L (1%) activated carbon, heated to 70 ℃, insulation for half an hour. Filter the filtrate.

And will be concentrated under reduced pressure until there are crystals, stirring so that the crystals are completely precipitated, filtration of the crystals, washed with 95% ethanol, at 60 ℃ below the vacuum drying, that is, the L-cysteine hydrochloride without water of crystallization.