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Category:Active Pharmaceutical Ingredients > Other Active Pharmaceutical Ingredients Product Name:99% up by HPLC L-Cysteine Base 52-90-4 CAS No.:52-90-4 Standard:USP, BP, EP, JP, In-house Standards Price(USD):Negotiable Company:Sinoway Industrial Co.Ltd.
Main Sales Markets: North America,Central/South America,Western Europe,Eastern Europe,Australasia,Asia,Middle East
Monthly Production Capacity: 1000kg
Packaging Information: 25kg/drum 1kg/bottle
Delivery Lead Time: 7 days after payment
Sample Provided: yes
Payment Terms: L/L
Product Information
Product name
L-Cysteine Base
CAS No.
52-90-4
Molecular Formula
C3H7NO2S
Molecular Weight
121.16
Quality Standard
99% up by HPLC, AJI97
Appearance
White powder
COA of L-Cysteine Base
ANALYSIS
SPECIFICATION
RESULTS
Appearance
White crystal powder
Complies
Odor
Characteristic
Complies
Tasted
Characteristic
Complies
Assay
99%
99.56%
Sieve Analysis
100% pass 80 mesh
Complies
Loss on Drying
5% Max
1.02%
Sulphated Ash
5% Max
1.3%
Extract Solvent
Ethanol & Water
Complies
Heavy Metal
5ppm Max
0.5 ppm
As
2ppm Max
0.01 ppm
Residual Solvents
0.05% Max.
Negative
Microbiology
Total Plate Count
1000/g Max
235/g
Yeast & Mold
100/g Max
46/g
E.Coli
Negative
Negative
Salmonella
Negative
Negative
Usage
Function of L-Cysteine Base
1. In cosmetics: used in the production of perm essence, sunscreen, perfume, hair nourishing essence, etc. This kind of advanced perm essence and cold perm essence, which replaces thioglycolic acid with cysteine, is easy to perm, easy to maintain hairstyle, soft and not It can also prepare sunscreen and hair growth perfume;
2. In medicine: cysteine is mainly used in liver medicine, antidote, expectorant and other medicines. Cysteine and its derivatives can be used for liver poisoning and detoxification, antipyretic and analgesic, ulcer treatment, fatigue recovery, infusion and comprehensive amino acid preparations, etc., especially for expectorant; treatment of bronchitis and phlegm reduction.
3. In food: bread fermentation accelerator, preservative. Cysteine is used as fermentation aid, antioxidant and stabilizer for milk powder and fruit juice, and nutritional additive for pet food;
4. L-cysteine can be used as the raw material for the production of N-acetyl-L-, carboxymethyl cysteine and other cysteine derivatives.
5. Accelerates the formation of gluten and prevents aging; it can be used in natural fruit juice to prevent the oxidation and browning of VC; it has detoxification effects on acrylonitrile and aromatic acidosis. Prevent radiation damage.
Application of L-Cysteine Base
1) Mainly used in cosmetics and other aspects.
2) Used in bread, to promote the formation of gluten and promote fermentation, mold, prevent aging.
3) Used in natural juices to prevent vitamin C from oxidizing and to prevent the juices from turning brown.