2-(3-methyl-1H-pyrazol-1-yl)acetyl chloride hydrochloride CAS 1431964-23-6
| CAS No. | 1431964-23-6 |
| Molecular Formula | C6H7ClN2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(3-methyl-1H-pyrazol-1-yl)acetyl chloride hydrochloride (CAS 1431964-23-6) is a high-purity analytical reference standard with the molecular formula C6H7ClN2OHCl and a molecular weight of 195.04 g/mol.
2-(3-methyl-1H-pyrazol-1-yl)acetyl chloride hydrochloride (C6H7ClN2OHCl) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2-(3-methyl-1H-pyrazol-1-yl)acetyl chloride hydrochloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H7ClN2O HCl |
| Molecular Weight | 195.04 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
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- 3-(2-Bromo-1-(2-bromophenyl)ethoxy)tetrahydrofuran (CAS 1341462-13-2)
- 2-Amino-4-(2,3-dimethoxyphenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile (CAS 674805-35-7)
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- 951884-35-8 3,5-Dimethyl-3'-iodobenzophenone MFCD07775722 (CAS 951884-35-8)
- 3-(Chloromethyl)-5-(4-(trifluoromethyl)phenyl)-1,2,4-oxadiazole (CAS 175205-84-2)
- Fmoc-3,4-difluoro-L-phenylalanine (CAS 198560-43-9)
- 3-(Bromomethyl)-2-methoxy-6-methylpyridine (CAS 1227594-67-3)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
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