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Cas Database |
| Name |
2-Aminoethanethiol |
EINECS | 200-463-0 |
| CAS No. | 60-23-1 | Density | 0.973 g/cm3 |
| PSA | 64.82000 | LogP | 0.57520 |
| Solubility | Soluble in water | Melting Point |
95°C |
| Formula | C2H7NS | Boiling Point | 133.6 °C at 760 mmHg |
| Molecular Weight | 77.1503 | Flash Point | 34.6 °C |
| Transport Information | UN 3335 | Appearance | white powder |
| Safety | 26-36 | Risk Codes | 22-36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 Xn
|
| Synonyms |
1-Amino-2-mercaptoethane;2-Amino-1-ethanethiol;2-Aminoethanethiol;2-Aminoethyl mercaptan;2-Aminoethylthiol;2-Mercaptoethanamine;2-Mercaptoethylamine;Becaptan;Cystagone;Cysteamine;Cysteinamine;Decarboxycysteine;L 1573;Lambraten;Lambratene;MEA;MEA (mercaptan);Mercamin;Mercamine;Mercaptamin;Mercaptamine;Mercaptoethylamine;Merkamin;NSC 647528;Riacon;Thioethanolamine;WR 347;b-Aminoethanethiol;b-Aminoethylthiol;b-MEA;b-Mercaptoethylamine;cysteamine HCL; |
Article Data | 63 |
2-Aminoethanethiol Synthetic route
| Conditions | Yield |
|---|---|
| With ammonia at 45℃; under 11251.1 Torr; for 0.666667h; Temperature; Pressure; | 97% |
| Conditions | Yield |
|---|---|
| With ethanol; hydrogen sulfide | |
| With hydrogen sulfide unter Kuehlung; |
| Conditions | Yield |
|---|---|
| With hydrogenchloride; water |
- 22572-33-4
S-benzylcysteamine hydrochloride
- 60-23-1
Cysteamine
| Conditions | Yield |
|---|---|
| With ammonia; sodium |
- 70-18-8
GLUTATHIONE
- 51-85-4
2,2'-dithio-bis[ethylamine]
A
- 13244-81-0
(S)-2-Amino-4-[(R)-2-(2-amino-ethyldisulfanyl)-1-(carboxymethyl-carbamoyl)-ethylcarbamoyl]-butyric acid
B
- 60-23-1
Cysteamine
| Conditions | Yield |
|---|---|
| With sodium chloride In water-d2 at 25℃; Equilibrium constant; |
- 70-18-8
GLUTATHIONE
- 13244-81-0
(S)-2-Amino-4-[(R)-2-(2-amino-ethyldisulfanyl)-1-(carboxymethyl-carbamoyl)-ethylcarbamoyl]-butyric acid
A
- 27025-41-8
Oxidized glutathione
B
- 60-23-1
Cysteamine
| Conditions | Yield |
|---|---|
| With sodium chloride In water-d2 at 25℃; Equilibrium constant; |
| Conditions | Yield |
|---|---|
| With HO3SC6H4SH Equilibrium constant; pH 6.0; | |
| With rac-cysteine Equilibrium constant; pH 7.4, further thiols; | |
| With water; diothiothreitol |
| Conditions | Yield |
|---|---|
| With sulfuric acid In water for 0.5h; Heating; |
| Conditions | Yield |
|---|---|
| With hydrazine |
2-Aminoethanethiol Chemical Properties
Molecular Structure of Cysteamine (60-23-1):
EINECS: 200-463-0
IUPAC Name: 2-Aminoethanethiol
Molecular Formula: C2H7NS
Molecular Weight: 77.148680 g/mol
XLogP3-AA: -0.4
H-Bond Donor: 1
H-Bond Acceptor: 1
Canonical SMILES: C(CS)N
InChI: InChI=1S/C2H7NS/c3-1-2-4/h4H,1-3H2
InChIKey: UFULAYFCSOUIOV-UHFFFAOYSA-N
Index of Refraction: 1.485
Molar Refractivity: 22.74 cm3
Molar Volume: 79.2 cm3
Surface Tension: 34.8 dyne/cm
Density: 0.973 g/cm3
Flash Point: 34.6 °C
Enthalpy of Vaporization: 37.11 kJ/mol
Boiling Point: 133.6 °C at 760 mmHg
Vapour Pressure: 8.39 mmHg at 25 °C
Melting Point: 95 °C
Water Solubility: 1e+006 mg/L at 25 °C
Storage Temp.: 2-8 °C
2-Aminoethanethiol Toxicity Data With Reference
| 1. | pic-esc 50 mg/L | APMBAY Applied Microbiology. 12 (1964),234. | ||
| 2. | cyt-ham:ovr 1 mmol/L | CALEDQ Cancer Letters (Shannon, Ireland). 5 (1978),199. | ||
| 3. | dns-ham:fbr 1 mmol/L | CALEDQ Cancer Letters (Shannon, Ireland). 5 (1978),199. | ||
| 4. | sce-ham:ovr 100 µmol/L | MUREAV Mutation Research. 68 (1979),351. | ||
| 5. | ipr-rat LD50:232 mg/kg | ARZNAD Arzneimittel-Forschung. Drug Research. 5 (1955),421. | ||
| 6. | scu-rat LD50:84 mg/kg | OSDIAF Osaka Shiritsu Daigaku Igaku Zasshi. Journal of the Osaka City Medical Center. 5 (1956),128. | ||
| 7. | orl-mus LD50:625 mg/kg | JMCMAR Journal of Medicinal Chemistry. 18 (1975),798. | ||
| 8. | ipr-mus LD50:250 mg/kg | JMCMAR Journal of Medicinal Chemistry. 12 (1969),510. | ||
| 9. | scu-mus LD50:84 mg/kg | OSDIAF Osaka Shiritsu Daigaku Igaku Zasshi. Journal of the Osaka City Medical Center. 5 (1956),128. | ||
| 10. | ivn-mus LD50:190 mg/kg | CHDDAT Comptes Rendus Hebdomadaires des Seances de l’Academie des Sciences, Serie D. 262 (1966),206. |
2-Aminoethanethiol Consensus Reports
EPA Genetic Toxicology Program.
2-Aminoethanethiol Safety Profile
Safety Information of Cysteamine (60-23-1):
Hazard Codes: Xn .gif){kind=small}
Risk Statements: 22-36/37/38
22: Harmful if swallowed
36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26-36
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
RIDADR: 3259
WGK Germany: 3
RTECS: KJ0175000
F: 1-3-10-13-34
Poison by intravenous, subcutaneous, and intraperitoneal routes. Moderately toxic by ingestion. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits very toxic fumes of SOx and NOx.
2-Aminoethanethiol Specification
Cysteamine (60-23-1) is white powder, known as Cysteamine [USAN:BAN] ; Mercaptamine [INN] ; (2-Mercaptoethyl)amine ; 1-Amino-2-mercaptoethylamine ; 2-Amino-1-ethanethiol ; 2-Aminoethanethiol ; 2-Aminoethyl mercaptan ; 2-Mercaptoethanamine ; Becaptan ; CCRIS 3083 ; Cisteamina ; Cisteamina [Italian] ; Cystagon ; Cysteamin ; Cysteinamine ; Decarboxycysteine ; HSDB 7353 ; L 1573 ; L-1573 ; Lambraten ; Lambratene ; MEA ; MEA (mercaptan) ; Mercamine ; Mercaptamina ; Mercaptamina [INN-Spanish] ; Mercaptamine ; Mercaptaminum ; Mercaptaminum [INN-Latin] ; Mercaptoethylamine ; NSC 647528 ; Riacon ; Thioethanolamine ; UNII-5UX2SD1KE2 ; WR 347 ; beta-Aminoethanethiol ; beta-Aminoethylthiol ; beta-Mercaptoethylamine ; Ethanethiol, 2-amino- . Cysteamine (60-23-1) is used to form Coenzyme A by combining with pantothenate and adenosine triphosphate in the body. It is also used for treatment of radiation sickness and disorders of cystine excretion.
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