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L-Cysteine [52-90-4]

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Name L-Cysteine
Synonyms (+)-2-Amino-3-mercaptopropionic acid; L-beta-Mercaptoalanine; CySH
Molecular Structure CAS # 52-90-4, L-Cysteine, (+)-2-Amino-3-mercaptopropionic acid, L-beta-Mercaptoalanine, CySH
Molecular Formula C3H7NO2S
Molecular Weight 121.15
CAS Registry Number 52-90-4
EINECS 200-158-2
FEMA 3263
Melting point 220 ºC
alpha 8.75 º (c=12, 2N HCl)
Water solubility 280 g/L (25 ºC)
Safety Data
Hazard Symbols symbol   Xn    Details
Risk Codes R22;R36/37/38    Details
Safety Description S26;S37/39    Details
MSDS Available
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