CERTIFICATE OF ANALYSIS
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Product: L-Cysteine HCL Anhydrous (Non-animal Source) CAS No: (52-89-1) Quantity: 1000KG Lot No: Date: JAN 05,2025 |
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Item |
Specification |
Result |
|
Appearance |
White crystalline powder |
conform |
|
Identification |
Infrared absorption |
conform |
|
Specific rotation [α]D20 |
+5.6 to +8.9° |
+7.0° |
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Stateof solution (Transmittance) |
Clear and colorless Not less than 98.0 % |
99.8% |
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Chloride(Cl) |
22.20 to 22.60 % |
22.43% |
|
Ammonium(NH4) |
Not more than 0.02 % |
<0.02 % |
|
Sulfate(SO4) |
Not more than 0.02 % |
<0.020 % |
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Iron(Fe) |
Not more than 10ppm |
<10ppm |
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Heavy metals(Pb) |
Not more than 10ppm |
<10ppm |
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Arsenic(as As2o3) |
Not more than 1ppm |
<1ppm |
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Other amino acids |
Chromatographically Not detectable |
conforms |
|
Loss on Drying |
Not more than 1.0 % |
0.41% |
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Residue on ignition(sulfated) |
Not more than 0. 1 % |
0.06% |
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Assay |
98.0 to 102.0 % |
100. 1% |
|
PH |
1.5 to 2.0 |
1.8 |
Conclusion : Agree with the specification of AJI92.
| Product Name: | L-(+)-Cysteine hydrochloride | Other Name: | L-Cysteine,hydrochloride (1:1);Cysteine,hydrochloride,L-;L-Cysteine,hydrochloride;Cysteine chlorohydrate;Cysteine hydrochloride;Cystein chloride;L-(+)-Cysteine hydrochloride;(R)-Cysteine hydrochloride;WR 348;(R)-1-Carboxy-2-mercaptoethanaminium chloride;CSKE 200;(2R)-2-Amino-3-sulfanylpropanoic acid hydrochloride;122641-75-2;122882-13-7;124558-06-1;29844-56-2 |
| CAS No.: | 52-89-1 | Molecular Formula: | C3H7NO2S.ClH |
| InChIKeys: | InChIKey=IFQSXNOEEPCSLW-DKWTVANSSA-N | Molecular Weight: | 157.61900 |
| Exact Mass: | 156.99600 | EC Number: | 200-157-7 |
| UNII: | A9U1687S1S | DSSTox ID: | DTXSID0020367 |
| Color/Form: | Colorless crystals|White crystals | HScode: | 2930909090 |
| Categories: | Amino Acids and Derivatives |
| PSA: | 102.12000 | XLogP3: | 0.83040 |
| Appearance: | DryPowder | Melting Point: | 170-178 °C (decomp) |
| Boiling Point: | 293.9ºC at 760 mmHg | Flash Point: | 131.5ºC |
| Water Solubility: | SOLUBLE | Storage Conditions: | Store at RT. |
| Vapor Pressure: | 6.73X10-7 mm Hg at 25 °C (est) | Toxicity: | LD50 intraperitoneal in mouse: 1250mg/kg |
| Henrys Law Constant: | Henry’s Law constant = 5.30X10-11 atm-cu m/mol at 25 °C (est) | Dissociation Constants: | pK1 1.71 /carboxylic/; pK2 8.33 /amine/; pK3 10.78 /sulfide/ |
| Experimental Properties: | 100 (20 °C) g/100 g H2O /L-Cysteine hydrochloride monohydrate/|Hydroxyl radical reaction rate constant = 7.96X10-11cu cm/molecule-sec at 25 °C (est)”>Readily oxidizes to form a dimeric amino acid, cystine, in which the two cysteines are linked via a disulfide bridge, a common structural feature in proteins. Amino Acids and Proteins, D.M. Greenberg, Ed. (Charles C. Thomas, Springfield, IL, 1951) 950 pp.|In neutral or slightly alkaline aqueous solution it is oxidized to cystine by air. More stable in acidic solutions.|MP (anhydrous): 178 °C (decomposes). Specific optical rotation: +6.53 deg at 25 °C/D (calculated as cysteine) (c = 2 in 5M HCl); solubility >100 (20 °C) g/100 g H2O /L-Cysteine hydrochloride monohydrate/|Hydroxyl radical reaction rate constant = 7.96X10-11cu cm/molecule-sec at 25 °C (est) |
Classification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
| Pictogram(s) | No symbol. |
|---|---|
| Signal word |
No signal word |
| Hazard statement(s) |
none |
| Precautionary statement(s) | |
| Prevention |
none |
| Response |
none |
| Storage |
none |
| Disposal |
none |
Other hazards which do not result in classification
no data available
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.