Ethyl 4-[(4-chlorophenyl)sulfinyl]-3-oxobutanoate CAS 337923-05-4
| CAS No. | 337923-05-4 |
| Molecular Formula | C12H13ClO4S |
| Molecular Weight | 288.75 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 Ethyl 4-[(4-chlorophenyl)sulfinyl]-3-oxobutanoate.
Ethyl 4-[(4-chlorophenyl)sulfinyl]-3-oxobutanoate (CAS 337923-05-4), molecular formula C12H13ClO4S and molecular weight 288.75 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Ethyl 4-[(4-chlorophenyl)sulfinyl]-3-oxobutanoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 288.75 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Ethyl 4-[(4-chlorophenyl)sulfinyl]-3-oxobutanoate 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 | C12H13ClO4S |
| Molecular Weight | 288.75 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 3-(3-Chlorophenyl)-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 1028-38-2)
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Recommended Standards
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- 8-(3,5-Difluorophenyl)-8-oxooctanoic acid (CAS 898765-85-0)
- 2-Methyl-N-(2-(thiophen-3-yl)ethyl)propane-1-sulfonamide (CAS 1251625-02-1)
- 3-(2,5-Dimethyl-1h-pyrrol-1-yl)-4-hydroxybenzoic acid (CAS 340315-24-4)
- Ethyl 6-amino-1,2,4-triazine-5-carboxylate (CAS 30855-52-8)
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- Biotinyl-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 213779-13-6)
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