5-Chlorooxazole-4-carboxylic acid CAS 1240601-37-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1240601-37-9 |
| Molecular Formula | C4H2ClNO3 |
| Molecular Weight | 147.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chlorooxazole-4-carboxylic acid (CAS 1240601-37-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H2ClNO3. Molecular weight: 147.52 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H2ClNO3 |
| Molecular Weight | 147.52 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 methanol, ethanol, DMSO, water |
| 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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorooxazole Standards
- 2-Chlorooxazole-5-carboxylic acid (CAS 1555623-55-6)
- 2-Chlorooxazole-4-carboxylic Acid (CAS 706789-07-3)
- 2-Chlorooxazole-4-carboxamide (CAS 1025468-33-0)
- Methyl 2-chlorooxazole-4-carboxylate (CAS 934236-35-8)
- Methyl 2-Chlorooxazole-5-carboxylate (CAS 934236-41-6)
- 2-Chlorooxazole-4-carbaldehyde (CAS 1060816-36-5)
- 2-Chlorooxazole-4-carbonitrile (CAS 1240598-38-2)
- Ethyl 5-chlorooxazole-4-carboxylate (CAS 1823403-24-2)
Recommended Standards
- 1,1,2-Trichloropropane (CAS 598-77-6)
- Benzoyl Chloride-13C7DISCONTINUED PLEASE SEE B209554 (CAS 1346605-13-7)
- 1,2,3-Trichloropropane (CAS 96-18-4)
- 2-Amino-1-((S)-3-(benzyl(cyclopropyl)amino)piperidin-1-yl)propan-1-one (CAS 1354028-95-7)
- 2,3,5,6-Tetrafluoro-4-methoxypyridine (CAS 2375-90-8)
- 3-Iodotetrahydro-2H-pyran-2-ol (CAS 85515-57-7)
- 4-(4-Chlorobenzoyl)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 70692-01-2)
- 2-hydroxy-5-(prop-2-enamido)benzoic acid (CAS 39833-78-8)
- o-Aminobenzoylglycyl-p-nitro-L-phenylalanyl-L-proline (CAS 67482-93-3)
- Tirzepatide Impurity 21 X TFA Salt (CAS CATO-C4X-324021)
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