Basic information
- CAS
30304-58-6- Standard SMILES
Cc1nc2ccccc2[nH]1- InChIKey
LDZYRENCLPUXAX-UHFFFAOYSA-N- Molecular formula
- C8H8N2
- Average molar mass
- 132.16 g/mol
- Monoisotopic mass
- 132.06874826
Overview
2-Methyl-1H-benzo[d]imidazole is a member of benzimidazoles.
Names & identifiers
- Preferred name
- 2-Methylbenzimidazole
- IUPAC
- 2-methyl-1H-benzimidazole
- English name
- 2-Methylbenzimidazole
- Molecular formula
- C8H8N2
- Molecular weight
- 132.16
Names & synonyms
Show more names
Database identifiers
- CAS
30304-58-6、615-15-6- PubChem CID
- 11984
- DTXSID
DTXSID5060641- ChEMBL
CHEMBL309135- ChEBI
CHEBI:194887- UNII
- ZH8IWW7Y8B
- EC Number
- 210-411-9
- Nikkaji
- J3.001E
Properties
Computed structural properties
- XLogP
- 2.2
- Topological polar surface area
- 28.7 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 0
- Heavy atoms
- 10
- Formal charge
- 0
- Complexity
- 124
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 175 · 175-177 °C (lit.)
- Boiling point
- 234.08 °C · 234.08°C (rough estimate)
- Density
- 1.1083 · 1.1083 (rough estimate)
- refractive index
- 1.6013 · 1.6013 (estimate)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- DMSO (Slightly), Methanol (Slightly)
- form
- Crystalline Powder
- pka
- 6.19 · 6.19(at 25℃)
- color
- Light beige to brown
- Water Solubility
- slightly soluble
- BRN
- 112264 · 112264
- InChI
- 1S/C8H8N2/c1-6-9-7-4-2-3-5-8(7)10-6/h2-5H,1H3,(H,9,10)
- InChIKey
- LDZYRENCLPUXAX-UHFFFAOYSA-N
- SMILES
- Cc1nc2ccccc2[nH]1
- CAS DataBase Reference
- 615 · 615-15-6(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 8 IWW7Y8B · ZH8IWW7Y8B
- NIST Chemistry Reference
- 1 H-benzimidazole, · 1H-benzimidazole, 2-methyl-(615-15-6)
- EPA Substance Registry System
- 1 H-Benzimidazole, · 1H-Benzimidazole, 2-methyl- (615-15-6)
- UNSPSC Code
- 12352100 · 12352100
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 5 · GHS05,GHS07
- Signal word
- Danger
- Hazard statements
- 302 · H302-H315-H318-H335
- Precautionary statements
- 280 · P280-P301+P312+P330-P302+P352-P305+P351+P338+P310
- target organs
- Respiratory system
- PPE
- 95 · dust mask type N95 (US), Eyeshields, Gloves
- Hazard Codes
- Xn
- Risk Statements
- 22 · 22-37/38-41-20/21/22
- Safety Statements
- 26 · 26-39-45-44
- WGK Germany
- 3 · 3
- RTECS
- 9100000 · DD9100000
- TSCA
- TSCA listed
- HS Code
- 29339990 · 29339990
- Storage Class
- 11 · 11 - Combustible Solids
- Hazard Classifications
- 4 OralEye · Acute Tox. 4 OralEye Dam. 1Skin Irrit. 2STOT SE 3
Safety & regulation
GHS classification
GHS Classification
Danger
H302 (89.6%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 48 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: 1H-Benzimidazole, 2-methyl-
1H-Benzimidazole, 2-methyl-: Does not have an individual approval but may be used under an appropriate group standard
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- DD9100000
- hs_code
- 29339990
- risk_code
- 22-37/38-41-20/21/22
- Signal word
- Danger
- Symbol(GHS)
- GHS05,GHS07
- hazard_code
- Xn
- safety_code
- 26-39-45-44
- Storage Class
- 11 - Combustible Solids
- target organs
- Respiratory system
- Hazard statements
- H302-H315-H318-H335
- Hazard Classifications
- Acute Tox. 4 OralEye Dam. 1Skin Irrit. 2STOT SE 3
- Precautionary statements
- P280-P301+P312+P330-P302+P352-P305+P351+P338+P310
Chemistry & industry
Uses & manufacturing
Applications
Uses2-Methylbenzimidazole is an important pharmacophore widely used in medicinal chemistry for the synthesis of various antibacterial and antifungal agents.It can be used as a key precursor to synthesize substituted benzimidazo[1,2-a]quinolones.It can be used in the synthesis of reversible solid-to-liquid phase transition coordination polymer crystals.2-Methylbenzimidazole also exhibits corrosion inhibition.
Preparation methods
Preparation2-Methylbenzimidazole is synthesized by the condensation of o-phenylenediamine with acetic acid. The mixture of o-phenylenediamine and acetic acid is heated at 100°C for 2 hours and then cooled slowly. 10% sodium hydroxide solution is added slowly to the mixture until it is slightly alkaline. The mixture is filtered and washed with cold water. The crude product is then recrystallized with water and decolorized with activated charcoal to obtain the final product. The yield is 68%.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers100 total
Additional notes
DefinitionChEBI: 2-Methyl-1H-benzo[d]imidazole is a member of benzimidazoles.
Related reactions
Compound notes
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