4-Methyl-3-(methylsulfonyl)benzoic acid CAS 51522-22-6
| CAS No. | 51522-22-6 |
| Molecular Formula | C9H10O4S |
| Molecular Weight | 214.24 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-Methyl-3-(methylsulfonyl)benzoic acid (CAS 51522-22-6), molecular formula C9H10O4S and molecular weight 214.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H10O4S, 4-Methyl-3-(methylsulfonyl)benzoic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 4-Methyl-3-(methylsulfonyl)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 | C9H10O4S |
| Molecular Weight | 214.24 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.) | 1971 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 2-Methyl-3-(methylsulfonyl)benzoic Acid (CAS 1186663-49-9)
- 3-Methyl-4-(methylsulfonyl)benzoic Acid (CAS 1186663-65-9)
- 2-Methyl-4-(methylsulfonyl)benzoic acid (CAS 118939-09-6)
- 2-[2-(Methylsulfonyl)phenyl]acetic Acid (CAS 142336-20-7)
- 2-Methyl-5-(methylsulfonyl)benzoic Acid (CAS 151104-37-9)
- 1-[4-(Methylsulfonyl)phenyl]urea (CAS 343247-75-6)
- 3-Methyl-5-(methylsulfonyl)benzoic acid (CAS 2301077-30-3)
- 4-(Methylsulfonyl)benzohydrazide (CAS 53554-94-2)
Recommended Standards
- 4-Methoxy-2-(methylsulfonyl)benzaldehyde (CAS 942474-73-9)
- 4-Oxo-4,5,6,7-tetrahydro-2H-isoindole-2-sulfonamide (CAS 2172947-82-7)
- 4-Methanesulfonamidobenzamide (CAS 329043-17-6)
- 5-Amino-6-methoxy-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide (CAS 2903923-09-9)
- 3-(4,6-Diamino-2,2-dimethyl-2H-[1,3,5]triazin-1-yl)-benzoic acid (CAS 17740-28-2)
- 2-(Cyclobutylamino)cyclopentan-1-ol (CAS 1248048-25-0)
- [(2S)-1-aminopropan-2-yl]dimethylamine (CAS 1008451-87-3)
- 1-Ethyl-3-nitro-1H-pyrazole-4-carboxamide (CAS 61716-99-2)
- N-(5-(Ethylthio)-1,3,4-thiadiazol-2-yl)-6-(1H-1,2,4-triazol-1-yl)pyridazine-3-carboxamide (CAS 1448131-01-8)
- 1-Iodo-3-(phenethoxymethyl)benzene (CAS 1222138-98-8)
- Orforglipron impurity 74 (CAS CATO-C4X-323474)
- Dimesna-d8 (CAS 1189975-43-6)
- (1R,5S)-5-(1-Methylethyl)bicyclo[3.1.0]hexan-2-one (CAS 110716-99-9)
- Galanin Message Associated Peptide (1-41) amide trifluoroacetate salt (CAS 132699-74-2)
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