4-(3,4-Dimethyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid CAS 38254-74-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 38254-74-9 |
| Molecular Formula | C11H12N2O4S |
| Molecular Weight | 268.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(3,4-Dimethyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 38254-74-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C11H12N2O4S. Molecular weight: 268.29 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C11H12N2O4S |
| Molecular Weight | 268.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dimethyl Standards
- (2,5-Dimethyl-1-(4-(trifluoromethyl)phenyl)-1H-pyrrol-3-yl)methanamine (CAS 1177277-74-5)
- (4R)-4,6'-dimethyl-4,5-dihydro-1'H,3H-spiro[furan-2,3'-naphtho[1,2-c]furan]-1'-one (CAS 100414-80-0)
- 2-(1,3-Dimethyl-2,3-dihydro-1H-benzo[d]imidazol-2-yl)benzoic acid (CAS 178814-08-9)
- 3,4-Dimethyl-5-[(2-methylphenyl)methyl]-1H,6H-pyrano[2,3-c]pyrazol-6-one (CAS 298218-17-4)
- Ethyl 4-(4,4-dimethyl-2,6-dioxocyclohexyl)-3-oxobutanoate (CAS 893679-52-2)
- 3,8-Dimethyl-6-nitro-4,7-phenanthrolin-5-amine (CAS 116142-50-8)
- 1,3-Dimethyl-6-(pyridin-4-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 953747-89-2)
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Recommended Standards
- 3-[(2-cyanoethyl)(methyl)sulfamoyl]benzoic acid (CAS 735337-12-9)
- 4-(3-Methyl-2,5-dioxopyrrolidin-1-yl)benzenesulfonamide (CAS 65116-12-3)
- 3-(5-Ethoxy-1H-1,2,4-triazol-3-yl)benzenesulfonamide (CAS 62036-16-2)
- 1-Cyclopropyl-3-(2-methylphenyl)piperazine (CAS 1248907-48-3)
- (S)-2-((3,4-Dimethylisoxazol-5-yl)amino)pentanamide (CAS 794565-18-7)
- 3,4-Difluoro-1-Methyl-1H-Pyrrole-2,5-Dione (CAS 56154-82-6)
- 2-((4-Cyanophenyl)(methyl)amino)acetic acid (CAS 152085-47-7)
- [1-(3-Fluorobenzyl)piperidin-4-yl]methylamine (CAS 893755-07-2)
- Methyl 4-[(hydroxyimino)methyl]-1-phenyl-5-(phenylsulfanyl)-1H-pyrazole-3-carboxylate (CAS 318238-02-7)
- PACAP-Related Peptide (PRP), rat (CAS 132769-35-8)
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 13829788188 / jacky.chen@cato-chem.com