Methyl 3-(2-chloroacetyl)cyclopentanecarboxylate CAS 84545-01-7
| CAS No. | 84545-01-7 |
| Molecular Formula | C9H13ClO3 |
| Molecular Weight | 204.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-(2-chloroacetyl)cyclopentanecarboxylate (C9H13ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.
Methyl 3-(2-chloroacetyl)cyclopentanecarboxylate (CAS 84545-01-7), molecular formula C9H13ClO3 and molecular weight 204.65 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C9H13ClO3 |
| Molecular Weight | 204.65 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Cl-containing |
Related Methyl Standards
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Recommended Standards
- 7-chloropyrrolo[1,2-a]pyrazine-3-carboxylic acid (CAS 2250241-78-0)
- Naphthalen-2-yl-acetyl chloride (CAS 37859-25-9)
- 7-chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid (CAS 867034-08-0)
- 3-(Methoxycarbonyl)benzoyl chloride 3441-03-0 Methyl 3-(chloroformyl)benzoate methyl 3-(carbonochloridoyl)benzoate (CAS 3441-03-0)
- 3-Amino-2-methylisonicotinaldehyde (CAS 1227581-90-9)
- Ethyl 2,2-dimethyl-4-oxobutanoate (CAS 139732-52-8)
- Methyl (3-(2,4-dichlorophenyl)propanoyl)glycinate (CAS 1090436-55-7)
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- (R)-3-Amino-3-(3-pyridyl)-propionic acid (CAS 155050-17-2)
- [2-(4-bromo-1H-pyrazol-1-yl)ethyl]dimethylamine (CAS 847818-54-6)
- PAH MIX 16 (CAS CATO-MPAH111551-AH)
- Ethyl 6-(benzylamino)-5-cyano-2-phenylnicotinate (CAS 477866-05-0)
- Methyl 4-(hydroxymethyl)-2-(trifluoromethyl)benzoate (CAS 959632-21-4)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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