4-(ethylthio)benzoic acid CAS 13205-49-7
| CAS No. | 13205-49-7 |
| Molecular Formula | C9H16O2S |
| Molecular Weight | 188.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(ethylthio)benzoic acid (CAS 13205-49-7), molecular formula C9H16O2S and molecular weight 188.29 g/mol, is a CATO reference standard with documented purity and traceability.
4-(ethylthio)benzoic acid (C9H16O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-(ethylthio)benzoic acid 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 | C9H16O2S |
| Molecular Weight | 188.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1960 |
| Sulfur Atoms | 1 |
Related ethylthio Standards
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- 4-(Ethylthio)cyclohexane-1-carboxylic acid (CAS 1547588-59-9)
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Recommended Standards
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- 2-Amino-1,2-diphenylethan-1-one (CAS 3723-23-7)
- 1,4,5,8-Tetraamino-2,7-bis(benzyloxy)anthracene-9,10-dione (CAS 88601-85-8)
- Ethyl 4-amino-5-phenylpentanoate (CAS 1343191-88-7)
- 2-(2,6-Difluoro-4-(trifluoromethyl)phenoxy)-1,3-difluoro-5-nitrobenzene (CAS 2244083-45-0)
- Tert-butyl (2S,3R)-3-(4-methoxyphenyl)aziridine-2-carboxylate (CAS 1416307-72-6)
- Furo[3,2-d]pyrimidine (CAS 4437-16-5)
- 1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione (CAS 6957-85-3)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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