Basic information
- Name:
1H-Benzimidazol-2-amine
- Superlist Name:
- 2-Aminobenzimidazole
- CAS No.:
934-32-7
- Molecular Structure:
- Formula:
- C7H7N3
- Molecular Weight:
- 133.15
- Deleted CAS:
- 144704-99-4
- Synonyms:
- Benzimidazole,2-amino- (6CI,7CI,8CI);1H-Benzimidazol-2-ylamine;2-Amino-1H-benzimidazole;2-Benzimidazolamine;2-Benzimidazolylamine;2-Iminobenzimidazoline;NSC 27793;NSC 7628;
- EINECS:
- 213-280-6
- Density:
- 1.367 g/cm3
- Melting Point:
- 226-230 °C(lit.)
- Boiling Point:
- 368.9 °C at 760 mmHg
- Flash Point:
- 204.6 °C
- Appearance:
- light yellow to cream or beige powder or flakes
- Hazard Symbols:
Xn- Risk Codes:
- 22-36/37/38-43
- Safety Description:
- 26-36/37/39-22 Details
- particular:
- particular
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Chemistry
The Molecular formula of 2-AMINOBENZIMIDAZOLE(934-32-7): C7H7N3
The Molecular Weight of 2-AMINOBENZIMIDAZOLE(934-32-7): 133.15
Molecular Structure:
EINECS: 213-280-6
Melting point: 226-230 °C(lit.)
Boiling Point: 368.9 °C at 760 mmHg
Flash Point: 204.6 °C
Index of Refraction: 1.78
Molar Refractivity: 40.85 cm3
Molar Volume: 97.3 cm3
Polarizability: 16.19 10-24 cm3
Surface Tension: 79.4 dyne/cm
Density: 1.367 g/cm3
Enthalpy of Vaporization: 61.56 kJ/mol
Vapour Pressure: 1.23E-05 mmHg at 25°C
IUPAC Name: 1H-benzimidazol-2-amine
Synonyms: 2-Iminobenzimidazoline;Benzimidazole, 2-amino-;2-amino-benzimidazol;USAF ek-4037;usafek-4037;2-BENZIMIDAZOLAMINE;2-BENZIMIDAZOLYLAMINE;2-AMINOBENZIMIDAZOLE;
The Molecular Weight of 2-AMINOBENZIMIDAZOLE(934-32-7): 133.15
Molecular Structure:
EINECS: 213-280-6
Melting point: 226-230 °C(lit.)
Boiling Point: 368.9 °C at 760 mmHg
Flash Point: 204.6 °C
Index of Refraction: 1.78
Molar Refractivity: 40.85 cm3
Molar Volume: 97.3 cm3
Polarizability: 16.19 10-24 cm3
Surface Tension: 79.4 dyne/cm
Density: 1.367 g/cm3
Enthalpy of Vaporization: 61.56 kJ/mol
Vapour Pressure: 1.23E-05 mmHg at 25°C
IUPAC Name: 1H-benzimidazol-2-amine
Synonyms: 2-Iminobenzimidazoline;Benzimidazole, 2-amino-;2-amino-benzimidazol;USAF ek-4037;usafek-4037;2-BENZIMIDAZOLAMINE;2-BENZIMIDAZOLYLAMINE;2-AMINOBENZIMIDAZOLE;
Toxicity Data With Reference
| 1. | mma-sat 710 µmol/L | ENMUDM Environmental Mutagenesis. 3 (1981),11. | ||
| 2. | mmo-sat 100 µg/plate | MUREAV Mutation Research. 15 (1972),273. | ||
| 3. | orl-rat TDLo:426 mg/kg (8-15D preg):TER | THERAP Therapie. 31 (1976),505. | ||
| 4. | orl-rat LDLo:500 mg/kg | NCNSA6 National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. 5 (1953),22. | ||
| 5. | orl-mus LD40:600 mg/kg | JACSAT Journal of the American Chemical Society. 67 (1945),905. | ||
| 6. | ipr-mus LD50:100 mg/kg | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) AD277-689 . | ||
| 7. | ivn-mus LD50:126 mg/kg | 29QHAQ Principles of Medicinal Chemistry Foye, W.O., eds.,Philadelphia, PA.: Lea and Febiger,1974,246. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. An experimental teratogen. Mutation data reported. When heated to decomposition it emits toxic NOx. See also AROMATIC AMINES.
The Hazard Codes of 2-AMINOBENZIMIDAZOLE(934-32-7):
Xn
The Risk Statements information of 2-AMINOBENZIMIDAZOLE(934-32-7):
22: Harmful if swallowed
43: May cause sensitization by skin contact
36/37/38: Irritating to eyes, respiratory system and skin
The Safety Statements information of 2-AMINOBENZIMIDAZOLE(934-32-7):
22: Do not breathe dust
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
WGK Germany: 3
RTECS: DD5775000
HS Code: 29339990
The Hazard Codes of 2-AMINOBENZIMIDAZOLE(934-32-7):
Xn The Risk Statements information of 2-AMINOBENZIMIDAZOLE(934-32-7):
22: Harmful if swallowed
43: May cause sensitization by skin contact
36/37/38: Irritating to eyes, respiratory system and skin
The Safety Statements information of 2-AMINOBENZIMIDAZOLE(934-32-7):
22: Do not breathe dust
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
WGK Germany: 3
RTECS: DD5775000
HS Code: 29339990
