N'-(3-Ethoxy-4-hydroxybenzylidene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide CAS 302918-46-3
| 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
As a certified reference material (CRM), N'-(3-Ethoxy-4-hydroxybenzylidene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies N'-(3-Ethoxy-4-hydroxybenzylidene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide (CAS 302918-46-3), a certified reference material (molecular formula C19H17N5O5, MW 395.37 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, N'-(3-Ethoxy-4-hydroxybenzylidene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 395.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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)
- Pemetrexed Impurity (CAS 83795-61-3)
- 1-Cyanovinyl acetate (CAS 3061-65-2)
- 3-Hydroxy-4-methoxybenzene-1-sulfonyl fluoride (CAS 1824415-91-9)
- 3-Cyclopentyl-2-methylprop-2-enoic acid (CAS 773112-99-5)
- 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)
- Calcein-AM (CAS 148504-34-1)
- [1-(3,4-difluorophenyl)ethyl](methyl)amine (CAS 929972-66-7)
- Semaglutide Impurity 146 (CAS 2645421-68-5)
Why CATO?
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