Methyl 3-(acetylthio)-2-chloropropanoate CAS 32371-92-9
| CAS No. | 32371-92-9 |
| Molecular Formula | C6H9ClO3S |
| Molecular Weight | 196.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 196.65 g/mol gives Methyl 3-(acetylthio)-2-chloropropanoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methyl 3-(acetylthio)-2-chloropropanoate (CAS 32371-92-9), molecular formula C6H9ClO3S and molecular weight 196.65 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 3-(acetylthio)-2-chloropropanoate (C6H9ClO3S) contains a sulfone group, 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyl 3-(acetylthio)-2-chloropropanoate 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 | C6H9ClO3S |
| Molecular Weight | 196.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 3-(acetylthio)bicyclo[1.1.1]Pentane-1-carboxylate (CAS 131543-52-7)
- 3-(2-(Acetylthio)ethoxy)propanoic acid (CAS 2093977-01-4)
- Methyl 2-(1-((acetylthio)methyl)cyclopropyl)acetate (CAS 142148-14-9)
- (S)-2-(acetylthio)-4-methylpentanoic acid (CAS 122999-39-7)
- Methyl 2-(3-((acetylthio)methyl)cyclobutyl)acetate (CAS 1956322-59-0)
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- 3-(Acetylthio)hexyl acetate (CAS 136954-25-1)
- 8-(Acetylthio)octanoic acid (CAS 503564-61-2)
Recommended Standards
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- 6-Chlorobenzo[b]thiophene-2-carbaldehyde (CAS 234107-52-9)
- 2-Chloro-4-(pyridin-4-yl)thiazole (CAS 103317-31-3)
- 1-Cyclohexylpiperidine-3-carboxylic acid (CAS 897094-37-0)
- 1-(2-Bromo-1-(sec-butoxy)ethyl)-4-chlorobenzene (CAS 21395-07-3)
- Nuezhenoside G13 (CAS 60037-39-0)
- N-(2-(Cyclohexyloxy)-4-hydroxyphenyl)methanesulfonamide (CAS 1243282-64-5)
- 3-Nitro-1-nonyl-1h-pyrazole (CAS 1240569-48-5)
- N-Cbz-2-(4-methoxyphenyl)isopropylamine (CAS 1403483-88-4)
- (4-(Piperazin-1-yl)phenyl)(pyridin-4-yl)methanone (CAS 727658-85-7)
- 1,5-Dichloro-2-methoxy-3-propoxybenzene (CAS 1881292-61-0)
- (3-Iodophenyl)acetyl chloride (CAS 127109-66-4)
- [y-Glu3]-Semaglutide Impurity 135 (CAS CATO-C4X-2226135)
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