2-Chloro-2-Fluoro-1-Methylcyclopropanecarbonyl Chloride CAS 128230-83-1
| CAS No. | 128230-83-1 |
| Molecular Formula | C5H5Cl2FO |
| Molecular Weight | 171.00 g/mol |
| 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.
CATO supplies 2-Chloro-2-Fluoro-1-Methylcyclopropanecarbonyl Chloride (CAS 128230-83-1), a certified reference material (molecular formula C5H5Cl2FO, MW 171.00 g/mol) for analytical method development and quality control.
Owing to a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 2-Chloro-2-Fluoro-1-Methylcyclopropanecarbonyl Chloride is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 171.00 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H5Cl2FO |
| Molecular Weight | 171.00 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) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | F/Cl-containing |
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Recommended Standards
- 4-Carbamoylbenzeneboronic acid (CAS 123088-59-5)
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- 5-Bromo-1H-pyrrole-2-carbonitrile (CAS 36953-44-3)
- (1S,2R)-2-Chloro-2-Fluoro-1-Methylcyclopropanecarbonyl Chloride (CAS 130340-16-8)
- 6-((2-ethoxyphenoxy)(phenyl)methyl)morpholin-3-one (CAS 93886-32-9)
- 4,5-Difluoro-1-naphthonitrile (CAS 52692-39-4)
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- 1-{[2-(4-methoxyphenoxy)-1,3-thiazol-5-yl]methyl}-4-phenylpiperazine (CAS 439097-05-9)
- 5-p-Tolyl-2H-pyrazole-3-carboxylic acid (CAS 890007-12-2)
- Icaritin Impurity 12 (CAS CATO-C4X-276412)
- 1-Octen-3-ol (CAS 3391-86-4)
- 2-(Methylsulfonyl)isonicotinaldehyde (CAS 1211539-18-2)
- Methyl 2-(oxetan-3-yl)acetate (CAS 1217800-69-5)
- Insulin Degludec Impurity 7 (CAS CATO-C4X-21577)
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