N'-(4-Ethoxybenzylidene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide CAS 302918-34-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 302918-34-9 |
| Molecular Formula | C19H17N5O4 |
| Molecular Weight | 379.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N'-(4-Ethoxybenzylidene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide (CAS 302918-34-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C19H17N5O4. Molecular weight: 379.37 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C19H17N5O4 |
| Molecular Weight | 379.37 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 |
Related N Standards
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- (5E)-5-(2-Ethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 897533-18-5)
- (5E)-5-(4-Ethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 894163-11-2)
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Recommended Standards
- N-(2-(2-((1H-Indol-3-yl)methylene)hydrazinyl)-2-oxoethyl)-4-methyl-3-nitrobenzamide (CAS 391892-86-7)
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- 4-Aminothiophene-2-carbonitrile hydrochloride (CAS 73781-73-4)
- 2-[2-(4-Fluorophenyl)-4-methyl-1,3-thiazol-5-yl]ethan-1-amine (CAS 1206976-44-4)
- N,N'-(Octahydro-2,8,4,6-(epibutane[1,2,3,4]tetrayl)naphthalene-2,6-diyl)diacetamide (CAS 55981-63-0)
- Tert-butyl (S)-3-oxohexahydroimidazo[1,5-a]pyrazine-2(3H)-carboxylate (CAS 2306245-79-2)
- 4-Chloro-8-methylcinnoline (CAS 817209-42-0)
- 2-(Naphthalen-1-yl)butan-2-ol (CAS 102238-70-0)
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