Model No.: LYN-7048-04-6
Name:: L-Cysteine Hydrochloride Monohydrate
Place of Origin: Shandong, China (Mainland)
Supply Ability: in stock
Certificate: ISO CE
HS Code: 7048-04-6
L-Cysteine hydrochloride monohydrate cas 7048-04-6
L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly used as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.
The hair was hydrolyzed with hydrochloric acid for 6 to 8 hours, hydrochloric acid was distilled off under reduced pressure, decolorized with activated carbon, filtered, and the filtrate was neutralized with ammonia to obtain crude crystals of L-cystine, and then recrystallized from aqueous ammonia to obtain L-cystine. Further, L-cystine is used as a raw material, and L-cysteine can be obtained by reduction, and there are two methods. Tin particle reduction method. Dissolve L-cystine in dilute hydrochloric acid, add tin particles and heat up to reflux for 2h, filter out the remaining tin particles in the reducing solution, dilute with water, then saturate with hydrogen sulfide; filter, filter residue with a small amount of water The washing liquid and the filtrate were combined, concentrated under reduced pressure, cooled, crystallized, separated and dried to give L-cysteine hydrochloride. HOOCCH(N
H2) CH2SSCH2CH (N
H2) COOH+Sn[HCl, H2S→HSCH2CH(N
H2) COOH·CHl electrolytic reduction method L-cystine and dilute hydrochloric acid are added to the electrolytic cell, stirred and dissolved, and electrolyzed at 50 ° C; the electrolyte is saturated with hydrogen sulfide for several hours to be saturated; filtered, the filtrate is decolorized by activated carbon, decolorized The liquid was concentrated under reduced pressure, cooled and crystallized, separated and dried to obtain L-cysteine hydrochloride, and 0.7 t of cystine and 1 t of hydrochloric acid were consumed per ton of product.
1. Cysteine hydrochloride is soluble in water, and can be quickly absorbed by the human body as an injection or tablet. It is the main raw material for the production of carboxymethylcysteine and acetylcysteine;
2. Bread improver; nutritional supplement, antioxidant, color protection agent. It has detoxification effect on acrylonitrile and aromatic poisoning, has the effect of preventing radiation damage, and has the treatment of bronchitis and phlegm.
25 kg box/bag/drums
Transit could be DHL,UPS,TNT,EMS,Fedex,and so on.
For mass orders, it will be delivered by air or sea.
your location, please allow 1-5 business days for your order to arrive.
For small order, please expect 3-7 days by UPS DHL EMS.
For mass order, please allow 5-8 days by Air, 15-30 days by Sea.
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