N'-(3-Ethoxy-4-hydroxybenzylidene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide CAS 302918-46-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 302918-46-3 |
| Molecular Formula | C19H17N5O5 |
| Molecular Weight | 395.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N'-(3-Ethoxy-4-hydroxybenzylidene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide (CAS 302918-46-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H17N5O5. Molecular weight: 395.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H17N5O5 |
| Molecular Weight | 395.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |
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Recommended Standards
- N'-(2,5-Dimethoxybenzylidene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide (CAS 302918-32-7)
- PDB-Pfp (CAS 2088570-81-2)
- Methyl 3-[2-(2,2,2-trifluoroethanesulfonamido)phenoxy]thiophene-2-carboxylate (CAS 882747-52-6)
- 1-Cyanovinyl acetate (CAS 3061-65-2)
- 3-Hydroxy-4-methoxybenzene-1-sulfonyl fluoride (CAS 1824415-91-9)
- 5-Methyl-2-phenyl-[1,2,4]triazolo[1,5-a]pyrimidin-7(1H)-one (CAS 36372-09-5)
- (4-Isopropylphenyl)methanesulfonyl chloride (CAS 926201-18-5)
- D-Allylglycine (CAS 54594-06-8)
- 1-(3,4-Dichlorophenyl)-2-oxopyrrolidine-4-carboxylic acid (CAS 91064-25-4)
- Semaglutide Impurity 146 (CAS 2645421-68-5)
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