2-Chloro-1H-imidazole-4-carboxylic Acid CAS 944905-33-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 944905-33-3 |
| Molecular Formula | C4H3ClN2O2 |
| Molecular Weight | 146.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-1H-imidazole-4-carboxylic Acid (CAS 944905-33-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H3ClN2O2. Molecular weight: 146.53 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H3ClN2O2 |
| Molecular Weight | 146.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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- 6-Chloro-4-hydroxypyridazin-3(2H)-one (CAS 17276-75-4)
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Recommended Standards
- 2-Chlorofuran-3-carboxylic acid (CAS 31491-45-9)
- 4-methyl-1,2,5-oxadiazole-3-carbonyl chloride (CAS 15323-68-9)
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- 4-Chloro-1-(trimethylsilyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 257298-06-9)
- Methyl 3,5-difluoro-4-formylbenzoate (CAS 1415124-73-0)
- N1,N1-dimethyl-1-(3-methylthiophen-2-yl)ethane-1,2-diamine (CAS 954573-16-1)
- 3-(4-Chlorophenyl)-3-(1h-pyrrol-1-yl)propanoic acid (CAS 404869-77-8)
- 2-Acetamido-3,4,6-tri-O-benzyl-2-deoxy-D-glucono-1,5-lactone (CAS 34051-37-1)
- N,N'-(3-Cyclopropoxypyridine-2,5-diyl)dimethanesulfonamide (CAS 1243466-56-9)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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