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Product Details:
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| Product Name: | L-Cystine | Synonym: | (R)-2, 2'-Diamino-3, 3'-dithiobis(propionic Acid） |
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| Appearance: | White Crystals Or Crystalline Powder | CAS No: | 56-89-3 |
| Molecular Formula: | C6H12N2O4S2 | Purity: | Not Less Than 99% |
| Shielf Life: | 2 Years | Specification: | USP, EP, AJINOMOTO 92, Etc. |
| High Light: | C6H12N2O4S2 Cosmetic additives,ISO 22000 Cosmetic additives,White crystals l cystine supplement |
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C6H12N2O4S2 Cosmetic Additive L-Cystine/Cystine White crystals or crystalline powder
Product Description
L-Cystine can be used in the cosmetic product to have anti-static effect. or as skin conditioner, etc.
Specifications
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Test items
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Standard | ||
| DEFINITION | Cystine contains NLT 98.5% and NMT 101.5% of C6H12N2O4S2, as L-Cystine, calculated on the dried basis. | ||
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IDENTIFICATION
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INFRARED ABSORPTION | ||
| -215°to -225° | |||
| The principal spot conform | |||
| ASSAY | 98.5%-101.5% | ||
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IMPURITIES
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Inorganic Impurities | RESIDUE ON IGNITION | NMT 0.1% |
| CHLORIDE | NMT 200ppm | ||
| SULFATE | NMT 200ppm | ||
| IRON | NMT 10ppm | ||
| Organic Impurities | Individual impurities | NMT 0.2% | |
| Total impurities | NMT 2.0% | ||
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SPECIFIC TESTS |
LOSS ON DRYING | NMT 0.2% | |
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