Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
Home > 2-Amino-3-[(2-amino-2-carboxyethyl)dithio]propanoic acid > 2-Amino-3-[(2-amino-2-carboxyethyl)dithio]propanoic acid(56-89-3)

2-Amino-3-[(2-amino-2-carboxyethyl)dithio]propanoic acid(56-89-3)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

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
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

Physical and Chemical Properties

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
pKa/pKb
1.0, 2.1, 8.02, 8.71(at 25℃) (pKa)
Partition Coefficient
-1.38

First Aid Measures

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.

Handling and Storage

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.

Hazards Identification

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.

Exposure Controls/Personal Protection

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

Fire Fighting Measures

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.

Accidental Release Measures

Small spills/leaks
Sweep up, then place into a suitable container for disposal.

Stability and Reactivity

Disposal Code
31
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizers.
Decomposition
Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.

Transport Information

HS Code
2930 90 14
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