3-(3-Ethoxyphenyl)-N'-(3-methoxybenzylidene)-1H-pyrazole-5-carbohydrazide CAS 302917-94-8
| CAS No. | 302917-94-8 |
| Molecular Formula | C20H20N4O3 |
| Molecular Weight | 364.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
3-(3-Ethoxyphenyl)-N'-(3-methoxybenzylidene)-1H-pyrazole-5-carbohydrazide (CAS 302917-94-8), molecular formula C20H20N4O3 and molecular weight 364.40 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H20N4O3, 3-(3-Ethoxyphenyl)-N'-(3-methoxybenzylidene)-1H-pyrazole-5-carbohydrazide contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 364.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 3-(3-Ethoxyphenyl)-N'-(3-methoxybenzylidene)-1H-pyrazole-5-carbohydrazide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H20N4O3 |
| Molecular Weight | 364.40 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Related Ethoxyphenyl Standards
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Recommended Standards
- 3-(2-Fluorophenyl)-4-(((2-hydroxynaphthalen-1-yl)methylene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 676333-72-5)
- 3-(4-Benzhydrylpiperazin-1-yl)-1,1,1-trifluoropropan-2-ol (CAS 453557-81-8)
- 2-[(E)-[(4-Phenoxyphenyl)methylidene]amino]-5-phenylfuran-3-carbonitrile (CAS 478033-33-9)
- 3-(4-Fluorophenyl)-4-(((2-hydroxynaphthalen-1-yl)methylene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 577983-00-7)
- 4-(1-Methyl-1H-pyrazol-4-yl)-1,2,3,4-tetrahydroisoquinoline dihydrochloride (CAS 1949816-17-4)
- 1-{5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}ethan-1-one (CAS 907971-17-9)
- 2(1H)-Quinolinone, 7-chloro-4-hydroxy-3-phenyl- (CAS 28563-19-1)
- 6-Methylimidazo[2,1-b][1,3]thiazole-5-carboxylic acid 6-methylimidazo[2,1-b]thiazole-5-carboxylic acid 77628-51-4 (CAS 77628-51-4)
- (3-Butoxy-5-fluorophenyl)(methyl)sulfane (CAS 1379358-81-2)
- N,N-Dimethyl-4-((((1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)methyl)amino)methyl)aniline dihydrochloride (CAS 1855952-41-8)
- 1,7,10-trioxadispiro[2.2.4⁶.2³]dodecane (CAS 83365-44-0)
- 8-Bromo-4,4-dimethyl-1,2,3,4-tetrahydroisoquinoline (CAS 1203683-45-7)
- 8-Bromo-6-methyl-3-nitroimidazo[1,2-a]pyridine (CAS 1072944-59-2)
- Serpent Peptide 2AcOH (CAS 823202-99-9(free base))
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