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| CAS No.: | 4856-97-7 |
|---|---|
| Name: | 1H-Benzimidazole-2-methanol |
| Article Data: | 68 |
| Molecular Structure: | |
|
|
|
| Formula: | C8H8N2O |
| Molecular Weight: | 148.164 |
| Synonyms: | 2-Benzimidazolemethanol(6CI,7CI,8CI);1H-Benzimidazol-2-ylmethanol;2-(Hydroxymethyl)benzimidazole;NSC 18284; |
| EINECS: | 225-451-2 |
| Density: | 1.36 g/cm3 |
| Melting Point: | 171-175 °C(lit.) |
| Boiling Point: | 412.6 °C at 760 mmHg |
| Flash Point: | 203.3 °C |
| Appearance: | Off-white to light brown crystalline powder |
| Hazard Symbols: |
 Xn,  Xi
|
| Risk Codes: | 20/21/22-36/37/38 |
| Safety: | 26-36-36/37 |
| PSA: | 48.91000 |
| LogP: | 1.05520 |
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Chemistry
IUPAC Name: 1H-Benzimidazol-2-ylmethanol
Following is the structure of 1H-Benzimidazole-2-methanol (CAS NO.4856-97-7):
Empirical Formula: C8H8N2O
Molecular Weight: 148.1619 g/mol
EINECS: 225-451-2
Index of Refraction: 1.721
Molar Refractivity: 43.07 cm3
Molar Volume: 108.9 cm3
Density: 1.36 g/cm3
Flash Point: 203.3 °C
Melting point 165-172 °C
Surface Tension: 73 dyne/cm
Enthalpy of Vaporization: 70.14 kJ/mol
Boiling Point: 412.6 °C at 760 mmHg
Vapour Pressure: 1.51E-07 mmHg at 25°C
Product Categories of 1H-Benzimidazole-2-methanol (CAS NO.4856-97-7): BENZIMIDAZOLE; Alcohols and Derivatives; Heterocycles; Benzimidazole Series; Imidazoles, Pyrroles, Pyrazoles, Pyrrolidines; Heterocycles series; Imidazol & Benzimidazole; Benzimidazoles; Building Blocks; Heterocyclic Building Blocks
Appearance of 1H-Benzimidazole-2-methanol (CAS NO.4856-97-7): Off-white to light brown crystalline powder
Canonical SMILES: C1=CC=C2C(=C1)NC(=N2)CO
InChI: InChI=1S/C8H8N2O/c11-5-8-9-6-3-1-2-4-7(6)10-8/h1-4,11H,5H2,(H,9,10)
InChIKey: IAJLTMBBAVVMQO-UHFFFAOYSA-N
Toxicity Data With Reference
1H-Benzimidazole-2-methanol (CAS NO.4856-97-7) hasn't been listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. And the toxicological properties have not been fully investigated.
Safety Profile
Hazard Codes: 
Xn,
Xi
Risk Statements: 20/21/22-36/37/38
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-36/37
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S36/37:Wear suitable protective clothing and gloves.
WGK Germany: 3
Hazard Note: Irritant
HazardClass: IRRITANT
Specification
1H-Benzimidazole-2-methanol , its cas register number is 4856-97-7. It also can be called 1H-Benzimidazol-2-ylmethanol ; and 2-(Hydroxymethyl)-1H-benzimidazole .
1H-Benzimidazole-2-methanol (CAS NO.4856-97-7) is hazardous, so the first aid measures and others should be known. Such as: When on the skin: Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product : Wash mouth out with water, and get medical aid immediately.
1H-Benzimidazole-2-methanol (CAS NO.4856-97-7) could be stable under normal temperatures and pressures. It should avoid the condition like incompatible materials. It is not compatible with strong oxidizing agents. And also prevent it to broken down into hazardous decomposition products: nitrogen oxides, carbon monoxide, carbon dioxide. However, its hazardous polymerization has not been reported. In addition, it should be stored in a cool, dry place, or stored in a tightly closed container.