2-Ethynyl-1H-imidazole CAS 57121-47-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 57121-47-8 |
| Molecular Formula | C5H4N2 |
| Molecular Weight | 92.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Ethynyl-1H-imidazole (CAS 57121-47-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H4N2. Molecular weight: 92.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H4N2 |
| Molecular Weight | 92.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 2 |
Related Ethynyl Standards
- 1-Ethynyl-1H-pyrazole (CAS 103244-40-2)
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- 4-Ethynyl-1H-pyrazole (CAS 57121-49-0)
- 5-ethynyl-1H-imidazole (CAS 57121-48-9)
- 2-Ethynyl-1H-pyrrole (CAS 67237-51-8)
- 3-Ethynyl-1h-pyrrole (CAS 71580-43-3)
- 5-ethynyl-1H-triazole (CAS 119720-87-5)
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Recommended Standards
- 1H-Pyrrole-3-carbonitrile (CAS 7126-38-7)
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- (4,4-Dimethyl-4,5-dihydro-thiazol-2-yl)-p-tolyl-amine (CAS 565167-99-9)
- 2-Chloro-4-(((3,5-dimethylisoxazol-4-yl)methyl)amino)benzonitrile (CAS 1182979-49-2)
- 2-(Aminomethyl)-4-(difluoromethyl)-3-iodopyridine-5-acetic acid (CAS 1805547-31-2)
- Benzyl (6-bromobenzo[b]thiophen-2-yl)carbamate (CAS 2570190-27-9)
- 1,1,1-Trifluoro-2-phenyl-propan-2-ol 1,1,1-trifluoro-2-phenylpropan-2-ol 426-54-0 (CAS 426-54-0)
- (S)-Isoindoline-1-carboxylic Acid (CAS 118312-39-3)
- Semaglutide impurity 76 (CAS CATO-C4X-222676)
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