1-Acetyl-3-amino-1H-pyrazol-5(4H)-one CAS 129027-73-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 129027-73-2 |
| Molecular Formula | C5H7N3O2 |
| Molecular Weight | 141.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
1-Acetyl-3-amino-1H-pyrazol-5(4H)-one (CAS 129027-73-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H7N3O2. Molecular weight: 141.13 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H7N3O2 |
| Molecular Weight | 141.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1993 |
| Nitrogen Atoms | 3 |
Recommended Standards
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- 4-(2-Oxopropyl)-1H-1,2,3-triazol-5(2H)-one (CAS 127846-79-1)
- (S)-7-nitro-1,2,3,4,4a,5-hexahydrobenzo[b]pyrazino[1,2-d][1,4]oxazine hydrochloride (CAS CATO-C3D-262481)
- Ethyl 3-nitrobenzene-1-carboximidate hydrochloride (CAS 57508-53-9)
- Zanamivir EP Impurity D (CAS 179531-53-4)
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- 1-[(2-phenyl-1,3-oxazol-4-yl)methyl]piperidine-3-carboxylic acid (CAS 1155616-11-7)
- Dapagliflozin Impurity 175 (CAS CATO-C4X-1138175)
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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