| Customization: | Available |
|---|---|
| CAS No.: | 52-89-1 |
| Formula: | C3h8clno2s |
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| ITEMS | SPECIFICATIONS |
| Assay | ≥98.5% |
| Appearance | White crystals or crystalline powder |
| Specific rotation [α]D 25 | +5.7°~ +6.8° |
| Loss on drying | 8.0%~12% |
| Residue on ignition | ≤0.4% |
| Sulfate(SO4) | ≤0.03% |
| Iron(Fe) | ≤0.003% |
| Chromatographic purity | Meets the requirements |
| Pb | ≤3ppm |
| As | ≤1ppm |
| Hg | ≤0.1ppm |
| Cd | ≤1ppm |
This table provides a comparison between L-Cysteine Hydrochloride Monohydrate and anhydrous L-Cysteine in terms of molecular weight and CAS number. The IUPAC name is provided for L-Cysteine Hydrochloride Monohydrate, while the anhydrous form does not have a specific IUPAC name listed in the provided data .
L-Cysteine is recognized for its role in the synthesis of proteins and its high reactivity due to the thiol group (-SH), which is essential for many of its biological functions in humans . It is used in the food industry as a flavoring or chelating agent, in pharmaceuticals, and in cosmetics for skin or hair care formulas. The effectiveness and role of L-Cysteine in health and medicine, however, remain subjects of ongoing research and debate .
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