1-Methoxybutane-2-sulfonyl chloride CAS 1339022-44-4
| CAS No. | 1339022-44-4 |
| Molecular Formula | C5H11ClO3S |
| Molecular Weight | 186.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Methoxybutane-2-sulfonyl chloride is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-Methoxybutane-2-sulfonyl chloride (CAS 1339022-44-4) is a high-purity analytical reference standard with the molecular formula C5H11ClO3S and a molecular weight of 186.66 g/mol.
1-Methoxybutane-2-sulfonyl chloride (C5H11ClO3S) 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.
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 | C5H11ClO3S |
| Molecular Weight | 186.66 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) | 0.0 |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methoxybutane Standards
- 4-methoxybutane-2-sulfonyl chloride (CAS 1250276-93-7)
- 4-methoxybutane-1-sulfonyl chloride (CAS 1342127-91-6)
- 2-Methoxybutane-1-sulfonyl chloride (CAS 1785589-49-2)
- 4-Methoxybutane-2-sulfonamide (CAS 1247342-46-6)
- 1-Methoxybutane-2-sulfonamide (CAS 1341963-72-1)
- 4-Methoxybutane-1-sulfonamide (CAS 1343838-10-7)
- 4-Methoxybutane-1,2-diamine (CAS 1251360-08-3)
Recommended Standards
- 4-Chloro-3-(methylthio)benzaldehyde (CAS 1289208-98-5)
- 3-Methoxy-2-methylpropane-1-sulfonyl chloride (CAS 1340102-86-4)
- 3-Chloro-5-(methylthio)benzaldehyde (CAS 1289164-92-6)
- 7-Chloro-2,3-dihydro-1H-pyrido[2,3-b][1,4]thiazine (CAS 1259513-96-6)
- 1-(2-Bromo-4-fluorophenyl)cyclopentanecarboxylic Acid (CAS 1898402-74-8)
- 1-((2-Fluorophenyl)thio)propan-2-one (CAS 2968-12-9)
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- 2-Chloro-N-ethyl-N-(naphthalen-1-yl)acetamide (CAS 22302-57-4)
- 2-Propenoic acid, homopolymer, calcium salt (CAS 25987-55-7)
- Thymopoietin II Peptide Fragment (CAS 56795-64-3)
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