3-Chloro-2-(chloromethyl)-2-methylpropanoyl Chloride CAS 4301-04-6
| CAS No. | 4301-04-6 |
| Molecular Formula | C5H7Cl3O |
| Molecular Weight | 189.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
3-Chloro-2-(chloromethyl)-2-methylpropanoyl Chloride (CAS 4301-04-6) is a high-purity analytical reference standard with the molecular formula C5H7Cl3O and a molecular weight of 189.47 g/mol.
3-Chloro-2-(chloromethyl)-2-methylpropanoyl Chloride (C5H7Cl3O) contains 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), 3-Chloro-2-(chloromethyl)-2-methylpropanoyl Chloride 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 | C5H7Cl3O |
| Molecular Weight | 189.47 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- 5-Benzamido-N-(4-chlorophenyl)-3-methylisothiazole-4-carboxamide (CAS 51287-57-1)
- (tert-Butoxycarbonyl)asparagine (CAS 142847-17-4)
- 4-hydroxy-1-benzothiophene-6-carboxylic acid (CAS 33880-31-8)
- methyl 2-[trans-2-{[(tert-butoxy)carbonyl]amino}cyclopentyl]acetate (CAS 1820575-27-6)
- 2-(2-(Trifluoromethyl)-1H-imidazol-1-yl)ethanol (CAS 1521969-17-4)
- N-(1-Methyl-5H-pyrido[4,3-b]indol-3-yl)hydroxylamine (CAS 74317-45-6)
- 2-(Aminomethyl)-5-cyano-3-(difluoromethyl)pyridine-6-carboxaldehyde (CAS 1806854-01-2)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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