4-(Methoxysulfonyl)benzoic acid CAS 408533-74-4
| CAS No. | 408533-74-4 |
| Molecular Formula | C8H8O5S |
| Molecular Weight | 216.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 216.21 g/mol gives 4-(Methoxysulfonyl)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(Methoxysulfonyl)benzoic acid (CAS 408533-74-4), molecular formula C8H8O5S and molecular weight 216.21 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, an aromatic ring system, 4-(Methoxysulfonyl)benzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 216.21 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.
CATO manufactures 4-(Methoxysulfonyl)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 | C8H8O5S |
| Molecular Weight | 216.21 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.) | 2025 |
| Sulfur Atoms | 1 |
Related Methoxysulfonyl Standards
Recommended Standards
- 4-(Hydrazinesulfonyl)benzoic acid (CAS 6391-97-5)
- 4-(Methylsulfonyl)-2-nitroaniline (CAS 21731-56-6)
- 4-(3-Fluorophenoxy)benzaldehyde (CAS 939758-29-9)
- 4-Acetoxybenzenesulfonic acid (CAS 46331-24-2)
- 2-(1H-Pyrrolo[3,2-b]pyridin-2-yl)acetonitrile (CAS 1261845-08-2)
- Ethyl (6-methoxybenzo[d]thiazol-2-yl)carbamate (CAS 31898-59-6)
- Fema3320 (CAS 65505-25-1)
- Phenyl (5-chloro-4-methylthiazol-2-yl)carbamate (CAS 894802-03-0)
- n-(2-Hydroxyethyl)-2-(trifluoromethyl)benzamide (CAS 948720-21-6)
- N-(2,3-Dimethyl-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazol-4-yl)-2,2,2-trifluoroacetamide (CAS 129476-61-5)
- 3-[2-(2-amino-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)acetamido]benzoic acid (CAS 101413-79-0)
- Decitabine Impurity 48 (CAS CATO-C4X-113748)
- Paracetamol EP Impurity A (CAS 614-80-2)
- (DTyr27,36,DThr32)-Neuropeptide Y (27-36) (CAS 163887-48-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com