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Category:Fine Chemicals > Other Fine Chemicals
Product Name:Manufacturer of L-Cysteine
CAS No.:7048-04-6
Standard:ChP, USP, BP, EP, JP
Price(USD):2.50
Company:HEBEI GRANRAY BIOPRODUCTS CO.,LTD
Grade: pharmaceutical grade, injection grade
Factory Location: zhaoxian nanbaishe
Main Sales Markets: North America,Western Europe,Asia,Africa
Monthly Production Capacity: 120ton
Contract Manufacturing: CMO
Packaging Information: 25kgs/bag
Delivery Lead Time: about 2-3 weeks
Sample Provided: yes
Payment Terms: T/T or L/c
| Packaging Details: | 25kg per carton or drum |
|---|---|
| Delivery Detail: | 10-15days after contract date |
L-Cysteine
High quality L-Cysteine, CAS no 52-90-4
Molecular Formula:C3H8ClNO2S.H2O
CAS:7048-04-6
High purity and best price
About L-Cysteine
Name:L-Cysteine hydrochloride monohydrate
Synonyms:alpha-Amino-beta-mercapto-propionic acid hydrochloride monohydrate
Molecular Formula:C3H8ClNO2S.H2O
Molecular Weight:175.63
CAS:7048-04-6
Functions & Uses
L-Cysteine is one of building blocks of protein and plays very important roles in the body. The primary role of L-Cysteine is in the production of important antioxidants such as glutathione. In addition, it serves as precursors for synthesis of proteins, glutathione, taurine and coenzyme A. Besides of the application in feed, pet food, function food supplement and pharmaceuticals thanks to its biological function, it is widely used in other industries, such as bakery, flavour, cosmetics and pharmaceuticals, due to its characteristic sulfhydryl group.
Quality Standard:
|
Items |
Specifications |
|
Appearance |
White crystalline powder |
|
Assay % |
99.0~102.0 |
|
Specific rotation |
+5.0°~+8.0° |
|
State of solution, % |
≥ 98.0 |
|
Chloride(as Cl),% |
19.89~20.29 |
|
Ammonium (as NH4),% |
≤ 0.02 |
|
Sulphate (as SO4),% |
≤ 0.020 |
|
Iron(as Fe), ppm |
≤ 10 |
|
Heavy metals (as Pb), ppm |
≤ 10 |
|
Arsenic(as As2O3), ppm |
≤ 1 |
|
Other amino acids |
meets the requirements |
|
Loss on drying, % |
8.5~12.0 |
|
pH value (1.0g/20mL water) |
1.5~2.0 |
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