(R)-2-Hydroxybut-3-en-1-yl 4-methylbenzenesulfonate CAS 138249-07-7
| CAS No. | 138249-07-7 |
| Molecular Formula | C11H14O4S |
| Molecular Weight | 242.29 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.
(R)-2-Hydroxybut-3-en-1-yl 4-methylbenzenesulfonate (CAS 138249-07-7) is a high-purity analytical reference standard with the molecular formula C11H14O4S and a molecular weight of 242.29 g/mol.
(R)-2-Hydroxybut-3-en-1-yl 4-methylbenzenesulfonate (C11H14O4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures (R)-2-Hydroxybut-3-en-1-yl 4-methylbenzenesulfonate 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 | C11H14O4S |
| Molecular Weight | 242.29 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Sulfur Atoms | 1 |
Related R Standards
- (2E)-4-Hydroxybut-2-en-1-yl N-(4-chlorophenyl)carbamate (CAS 57302-74-6)
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- methyl 6-(4-hydroxybut-1-ynyl)-2H-chromene-3-carboxylate (CAS 2584138-41-8)
- 2-(2-Hydroxybut-3-en-1-yl)isoindoline-1,3-dione (CAS 1855-22-7)
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- (E)-4-(3-Hydroxybut-1-en-1-yl)-3,5,5-trimethylcyclohex-2-enone (CAS 896107-70-3)
Recommended Standards
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- 2-Methoxy-5-(phenylsulfonyl)tetrahydrofuran (CAS 138745-73-0)
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