4-Methyl-3-(4-nitrophenyl)-1H-pyrazol-5(4H)-one CAS 13051-11-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13051-11-1 |
| Molecular Formula | C54H69N11O10S2 C2H4O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methyl-3-(4-nitrophenyl)-1H-pyrazol-5(4H)-one (CAS 13051-11-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C54H69N11O10S2 C2H4O2. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C54H69N11O10S2 C2H4O2 |
| Molecular Weight | 1156.38 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 26.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 11 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 2-(3-Bromo-5-chlorophenyl)acetic acid (CAS 202001-01-2)
- 2-Ethyl-6-methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2096338-91-7)
- 3-Morpholinopropanoic Acid (CAS 4497-04-5)
- 4-Ethyl-5-(5-nitrofuran-2-yl)-4H-1,2,4-triazol-3-amine (CAS 41735-52-8)
- 6-(4-Amino-3-chlorophenyl)pyridazin-3(2H)-one (CAS 62902-50-5)
- 3-(2,2-Dimethylchroman-6-yl)-7-hydroxy-4H-chromen-4-one (CAS 40357-43-5)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
Why CATO?
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