4-(4-Methoxyphenyl)sulfanylbenzoic acid CAS 252973-46-9
| CAS No. | 252973-46-9 |
| Molecular Formula | C14H12O3S |
| Molecular Weight | 260.31 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.
4-(4-Methoxyphenyl)sulfanylbenzoic acid (CAS 252973-46-9), molecular formula C14H12O3S and molecular weight 260.31 g/mol, is a CATO reference standard with documented purity and traceability.
4-(4-Methoxyphenyl)sulfanylbenzoic acid (C14H12O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic 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).
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 | C14H12O3S |
| Molecular Weight | 260.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 1 |
Related Methoxyphenyl Standards
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Recommended Standards
- 4-(2-(Ethylsulfonyl)phenyl)-1H-pyrrole-3-carbonitrile (CAS 87388-32-7)
- 4-(4-Nitrophenyl)-4,5,6,7-tetrahydrothieno-[3,2-c]pyridine (CAS 213462-01-2)
- 4-((5-(P-tolyl)-1,3,4-oxadiazol-2-yl)thio)but-2-yn-1-ol (CAS 461430-58-0)
- 4-(Diethylsulfamoyl)-1-methyl-1h-pyrrole-2-carboxylic acid (CAS 875160-39-7)
- 3-(1-(2-Fluorophenyl)-1H-pyrazol-5-yl)pyridine (CAS 1269293-02-8)
- tert-Butyl 4-(3-methylbutoxy)piperidine-1-carboxylate (CAS 2034155-23-0)
- 3-(Methylsulfonyl)pyridin-2(1H)-one (CAS 1254730-41-0)
- N-methyl-6-phenylpyridazin-3-amine (CAS 14966-92-8)
- 2-Mercapto-5-(morpholinomethyl)pyrimidin-4-ol (CAS 89665-74-7)
- (S)-1-(2-fluorobenzyl)piperidin-3-amine (CAS 1218141-79-7)
- Sulfamerazine-13C6 (CAS 1196157-80-8)
- 1-(3-(Trimethoxysilyl)propyl)-1H-pyrrole (CAS 80906-67-8)
- 5-Amino-1-(2-methoxyethyl)-4-(4-methylthiazol-2-yl)-1,2-dihydro-3H-pyrrol-3-one (CAS 951971-68-9)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
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