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Basic Info.
Model NO.
b gm 52-89-1
Sample
Support
Purity
99%
Storage
Yes
MW
157.62
Transport Package
Bag
Specification
25kg
Trademark
Future Chemical
Origin
China
Production Capacity
500ton
Product Description
L-Cysteine hydrochloride anhydrous for Food additives CAS 52-89-1
L-Cysteine hydrochloride anhydrous Basic information | |
Product Name: | L-Cysteine hydrochloride anhydrous |
CAS: | 52-89-1 |
MF: | C3H8ClNO2S |
MW: | 157.62 |
EINECS: | 200-157-7 |
Mol File: | 52-89-1.mol |
L-Cysteine hydrochloride anhydrous Chemical Properties | |
Melting point | 180°C |
alpha | 5.5 º (c=8, 6 N HCL) |
storage temp. | Inert atmosphere,Room Temperature |
solubility | H2O: 1 M at 20 °C, clear, colorless |
form | Solid |
color | White to light brown |
Item | Specifications | |
USP | AJI | |
Appearance | White crystals or crystalline powder; strongly acid taste. | |
Identification | Infrared Absorption | --- |
State of solution (Transmittance) | --- | >= 98.0% clear and colorless |
Chloride (Cl) | --- | 19.89-20.29% |
Ammonium(NH4) | --- | =< 0. 002% |
Sulfate | =< 0. 03 % | =< 0. 020% |
Iron | =< 0. 003 % | 10ppm |
Heavy Metals (as Pb), | =< 0.00 15% | =< 10ppm |
Arsenic (as As), | --- | =< 1ppm |
Other amino acids | --- | Not detected |
Organic volatile impurities | Meets the requirement | --- |
Loss on drying, | 8-12 % | 8.5-12 % |
Residue on ignition, | c | =< 0.1 0 % |
Assay | 98.5-101.5 % | 9 9.0-10 0.5 % |
pH value | --- | 1.5-2.0 |
Organic volatile impurities | Meets the requirement | --- |
Chromatographic purity | 0.5% max Individual impurity, 2% max total | --- |
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