Methyl 2-(chlorosulfonyl)-2-methylpropanoate CAS 55896-98-5
| CAS No. | 55896-98-5 |
| Molecular Formula | C5H9ClO4S |
| Molecular Weight | 200.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 2-(chlorosulfonyl)-2-methylpropanoate.
Methyl 2-(chlorosulfonyl)-2-methylpropanoate (CAS 55896-98-5), molecular formula C5H9ClO4S and molecular weight 200.64 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carbohydrate-derived structure, a sulfone group, chlorine substitution, Methyl 2-(chlorosulfonyl)-2-methylpropanoate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.64 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Methyl 2-(chlorosulfonyl)-2-methylpropanoate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H9ClO4S |
| Molecular Weight | 200.64 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, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Ethyl 3-(Chlorosulfonyl)propionate (CAS 103472-25-9)
- 3-Chlorosulfonyl-butyric acid methyl ester (CAS 1154388-34-7)
- 3-(Chlorosulfonyl)-2,2-dimethylpropanoic acid (CAS 1506695-03-9)
- 3-(Chlorosulfonyl)propyl acetate (CAS 81692-70-8)
- Ethyl 2-(chlorosulfonyl)propanoate (CAS 20449-09-6)
- Methyl 3-(chlorosulfonyl)-2-methylpropanoate (CAS 927966-06-1)
- Methyl 4-chlorosulfonyl-butanoate (CAS 81926-28-5)
- 2-(chlorosulfonyl)-1,3-dimethoxypropane (CAS 1871639-57-4)
Recommended Standards
- 4-Chloro-1-(4-fluorophenyl)butan-1-one (CAS 41167-07-1)
- 4-(2-Chloroallyl)-2-fluoro-1-methoxybenzene (CAS 951888-08-7)
- propan-2-yl 2-(chlorosulfonyl)acetate (CAS 303153-12-0)
- 3-chloro-1-(4-fluorophenyl)butan-1-one (CAS 70336-24-2)
- 1-(2-Fluoroethyl)-4-iodo-5-methyl-1H-pyrazole (CAS 1443278-91-8)
- 4,4′-[Methylenebis(4,1-phenyleneimino)]bis[4-oxobutanoic acid] (CAS 155267-38-2)
- (2e)-3-(1h-Pyrrol-2-yl)prop-2-enoic acid (CAS 49653-15-8)
- Ethyl 8-bromo-5-(methylthio)imidazo[1,5-c]pyrimidine-1-carboxylate (CAS 2170605-19-1)
- 3-((6-Methyl-1H-benzo[d]imidazol-2-yl)amino)propan-1-ol (CAS 302812-86-8)
- 1-(4-Cyanophenyl)piperidine-3-carboxylic acid (CAS 321337-54-6)
- 5-(2-Fluorophenyl)-1,2-dihydro-3H-pyrazol-3-imine hydrochloride (CAS 1239715-03-7)
- (R)-5-Methyl-1,3-dioxolane-2,4-dione (CAS 91049-50-2)
- Tetrazole-5-acetohydrazide (CAS 1002104-07-5)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
Why CATO?
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