5-amino-1-(4-methylbenzenesulfonyl)-2,3-dihydro-1H-pyrazol-3-one CAS 240117-38-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 240117-38-8 |
| Molecular Formula | C10H11N3O3S |
| Molecular Weight | 253.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-amino-1-(4-methylbenzenesulfonyl)-2,3-dihydro-1H-pyrazol-3-one (CAS 240117-38-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H11N3O3S. Molecular weight: 253.28 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H11N3O3S |
| Molecular Weight | 253.28 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.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related amino Standards
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- Ethyl 2-amino-4-(1-methyl-1H-1,2,4-triazol-5-yl)thiazole-5-carboxylate (CAS 1229426-21-4)
- 4-Amino-N-(4-methylisoxazol-3-yl)benzenesulfonamide (CAS 1829-84-1)
- 2-(6-Amino-9H-purin-8-ylsulfanyl)-butyric acid (CAS 436086-77-0)
- 3-(5-Amino-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 23646-86-8)
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Recommended Standards
- 5-[(furan-2-yl)methanesulfonyl]-2-methylpyrimidin-4-amine (CAS 882259-93-0)
- 8-Ethyl-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7(8H)-one (CAS 211244-84-7)
- 5-(Methoxymethyl)-N-(5-methyl-1,3,4-thiadiazol-2-yl)furan-2-carboxamide (CAS 881933-24-0)
- [2,2′-Bipyridine]-5-acetic acid (CAS 917874-25-0)
- 1-(3-Bromo-4-(dimethylamino)phenyl)ethan-1-one (CAS 142500-11-6)
- 6-Chloro-5-iodonicotinamide (CAS 1242268-21-8)
- Methyl 2-(((trifluoromethyl)sulfonyl)oxy)cyclohex-1-enecarboxylate (CAS 93493-95-9)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-2-cyclopropylacetic acid (CAS 2642726-08-5)
- 5-Ethoxybenzofuran (CAS 861603-71-6)
- (Des-Bromo)-Neuropeptide B (1-23) (human) (CAS 434897-64-0)
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