DL-Cysteine [3374-22-9]

Dl-Cysteine [3374-22-9] is part of a category of reagents recognized for technical precision. Its molecular formula, HSCH2CH(NH2)COOH, corresponds to a molecular weight of 121.16. This compound belongs to the class of alpha-amino acids, serving as an essential building block in proteins. As with many chemicals, it carries a Warning signal word due to its potential hazards. This specific product conforms to AJ192, featuring a purity of at least 99%, and contains less than 5 parts per million of iron, arsenic, and lead. It appears as white crystals or a white crystalline powder, with a loss on drying of 0.10%. Other amino acids have been chromatographically undetected in this product. It is stored between 2 to 8 °C, and contains less than 0.10% methylene chloride. The residue on ignition is 0.05%.

• CAS Number: 3374-22-9
• Molecular Formula: HSCH2CH(NH2)COOH
• Exact Mass: 121.01974964
• Molecular Weight: 121.16
• GHS Signal Word: Warning
• Appearance: White crystals/ White crystalline powder
• Assay: ≥99%
• Hazard Statements:
  • H302: Harmful if swallowed [Warning Acute toxicity, oral]