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L-Cystine

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[Fire Fighting]

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. Extinguishing media: Use water spray, dry chemical, or carbon dioxide.
[Ingestion]

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid.
[Inhalation]

Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
[Skin]

Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
[Eyes]

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.
[Storage]

Store in a cool, dry, well-ventilated area away from incompatible substances.
[Handling]

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
[Ingestion]

Low hazard for usual industrial handling.
[Inhalation]

Low hazard for usual industrial handling.
[Skin]

Low hazard for usual industrial handling.
[Eyes]

Contact may cause transient eye irritation.
[Personal Protection]

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
[Respirators]

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
[Poison Class]

4
[Appearance]

White powder. A covalently linked dimeric nonessential amino acid formed by the oxidation of CYSTEINE. Two molecules of cysteine are joined together by a disulfide bridge to form cystine.
[Solubility in water]

110 mg/L
[Melting Point]

261 - 262
[Boiling Point]

428
[Density]

1.677 g/cm3
[Partition Coefficient]

-1.38
[Product Name]

2-Amino-3-[(2-amino-2-carboxyethyl)dithio]propanoic acid
[Synonyms]

(2R)-2-Amino-3-[(2R)-2-amino-3-hydroxy-3-oxopropyl]disulfanylpropanoic acid
L-(-)-3,3'-Dithiobis (2-aminopropionic acid)
[CAS]

"CASEN_56-89-3.htm">56-89-3
[Formula]

C6H12N2O4S2
[Molecular Weight]

240.3
[EINECS]

200-296-3
[RTECS]

HA2690000
[RTECS Class]

Drug
[Merck]

13,2811
[Beilstein/Gmelin]

1728094
[Beilstein Reference]

4-04-00-03155
[Small spills/leaks]

Sweep up, then place into a suitable container for disposal.
[Disposal Code]

31
[Stability]

Stable under normal temperatures and pressures.
[Incompatibilities]

Strong oxidizers.
[Decomposition]

Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.
[HS Code]

2930 90 14