2-MERCAPTO-5-METHOXYBENZIMIDAZOLE
Synonym(s):5-METHOXY-2- BENZIMIDAZOLETHIOL;5-Methoxy-2-benzimidazolethiol
- CAS NO.:37052-78-1
- Empirical Formula: C8H8N2OS
- Molecular Weight: 180.23
- MDL number: MFCD00134581
- EINECS: 253-326-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 06:29:28
What is 2-MERCAPTO-5-METHOXYBENZIMIDAZOLE?
Chemical properties
off-white to light yellowish-brown powder
The Uses of 2-MERCAPTO-5-METHOXYBENZIMIDAZOLE
2-Mercapto-5-methoxybenzimidazole is used in the preparation of COX-2 inhibitors. It is also employed in the preparation of compounds such as 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfonyl]-1H-benzimidazole and 5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl-1-oxide)methyl]sulfonyl]-1H-benzimidazole. Further, it acts as a hetercocyclic building block and serves as an intermediate of drug omeprazole.
The Uses of 2-MERCAPTO-5-METHOXYBENZIMIDAZOLE
Reagent used in the synthesis of COX-2 inhibitors
The Uses of 2-MERCAPTO-5-METHOXYBENZIMIDAZOLE
5-Methoxy-2-benzimidazolethiol may be used in the preparation of compounds present as contaminants in omeprazole, such as 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfonyl]-1H-benzimidazole and 5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl-1-oxide)methyl]sulfonyl]-1H-benzimidazole. It may be used in the synthesis of tris[μ-1,2-bis(diphenylphosphino)ethane]-1:2κ2P:P′;1:3κ2P:P′;2:3κ2P:P′-di-μ-bromido-1:2κ4Br:Br-bromido-3κBr-tricopper(I) acetone hemisolvate.
What are the applications of Application
5-Methoxy-2-benzimidazolethiol is a benzimidazole
General Description
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards
Flammability and Explosibility
Not classified
Chemical properties
2-Mercapto-5-methoxybenzimidazole is a white or off-white crystal or powder that changes color easily under light. This product is soluble in alkali solution, slightly soluble in ethanol, and insoluble in water. Melting point: 240.0~244.0℃.
Properties of 2-MERCAPTO-5-METHOXYBENZIMIDAZOLE
| Melting point: | 261-263 °C(lit.) |
| Boiling point: | 309.4±44.0 °C(Predicted) |
| Density | 1.2425 (rough estimate) |
| vapor pressure | 0.001Pa at 25℃ |
| refractive index | 1.5690 (estimate) |
| storage temp. | 2-8°C |
| solubility | DMSO (Slightly), Methanol (Sparingly) |
| pka | 10.13±0.30(Predicted) |
| form | Powder |
| color | Off-white to light yellow-brown |
| Water Solubility | insoluble |
| Sensitive | Air Sensitive |
| BRN | 3605123 |
| CAS DataBase Reference | 37052-78-1(CAS DataBase Reference) |
Safety information for 2-MERCAPTO-5-METHOXYBENZIMIDAZOLE
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2-MERCAPTO-5-METHOXYBENZIMIDAZOLE
2-MERCAPTO-5-METHOXYBENZIMIDAZOLE manufacturer
Navone Specialties (OPC) Pvt Ltd
ZEB Pharma
Kaival Impex
A.J Chemicals
Global Chemie
Manav Biochem Impex Private Limited
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![5-METHOXY-2-[((4-METHOXY-3,5-DIMETHYL-1-OXIDO-2-PYRIDINYL)METHYL)SULFINYL]-BENZIMIDAZOLE](https://img.chemicalbook.in/CAS/GIF/176219-04-8.gif)






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