1-(Methylsulfonyl)-1H-pyrazole-4-carboxylic acid CAS 2306268-92-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2306268-92-6 |
| Molecular Formula | C5H6N2O4S |
| Molecular Weight | 190.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(Methylsulfonyl)-1H-pyrazole-4-carboxylic acid (CAS 2306268-92-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H6N2O4S. Molecular weight: 190.18 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H6N2O4S |
| Molecular Weight | 190.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- (E)-1-(4-fluorophenyl)-N-(4H-1,2,4-triazol-4-yl)methanimine (CAS 19015-63-5)
- 2-((5-Thioxo-4,5-dihydro-1,3,4-oxadiazol-2-yl)methoxy)acetic acid (CAS 61320-74-9)
- 4-(2-Fluoropyridin-3-yl)pyrimidin-2-amine, 97% (CAS 1784761-31-4)
- (3S,6R,7S,8S,12Z,15S,16E)-1,3,15-Tris-{[tert-butyl(dimethyl)silyl]oxy}-7-hydroxy-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)heptadecyl-12,16-dien-5-one (CAS 193146-49-5)
- 2-Chloro-6-(3,4-dimethoxyphenyl)-4-phenylnicotinonitrile (CAS 1956369-52-0)
- 3-(4-Fluorophenyl)-5-methyl-1H-indazole (CAS 395104-06-0)
- (2E)-3-(2,4-Dichlorophenyl)-3-oxo-2-(2-phenylhydrazin-1-ylidene)propanal (CAS 338414-48-5)
- (S)-2-Amino-3-hydroxy-N-methylpropanamide (CAS 131173-29-0)
- AldolDISCONTINUED. Can be prepared (and used without isolation) from H824630. Please see Journal of Organic Chemistry, 1988, 53, 4175-4181. (CAS 107-89-1)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
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