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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 | --- |
