1-(Diphenylmethylene)-2-(4-nitrophenyl)hydrazine CAS 2675-31-2
| CAS No. | 2675-31-2 |
| Molecular Formula | C20H15NO5 |
| Molecular Weight | 349.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 1-(Diphenylmethylene)-2-(4-nitrophenyl)hydrazine (C20H15NO5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
1-(Diphenylmethylene)-2-(4-nitrophenyl)hydrazine (CAS 2675-31-2) is a high-purity analytical reference standard with the molecular formula C20H15NO5 and a molecular weight of 349.34 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H15NO5 |
| Molecular Weight | 349.34 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Diphenylmethylene Standards
- N'-(diphenylmethylene)-4-methylbenzenesulfonohydrazide (CAS 4545-20-4)
- N'-(diphenylmethylene)-2-(phenylthio)acetohydrazide (CAS 341967-99-5)
- N'-(diphenylmethylene)-2-(p-tolyloxy)acetohydrazide (CAS 341967-95-1)
- 2-((Diphenylmethylene)amino)-5-methyl-5,6,7,8-tetrahydroquinolin-5-ol (CAS 1429914-13-5)
- N'-(diphenylmethylene)-2-(4-methoxyphenoxy)acetohydrazide (CAS 341967-96-2)
- 1,2-bis(diphenylmethylene)hydrazine (CAS 983-79-9)
- N'-(diphenylmethylene)-2-(phenylthio)propanehydrazide (CAS 478247-04-0)
- N'-(diphenylmethylene)-2-(p-tolylthio)acetohydrazide (CAS 341968-02-3)
Recommended Standards
- (S)-2-((S)-2-Amino-3-(5-hydroxy-1H-indol-3-yl)propanamido)pentanedioic acid (CAS 98409-97-3)
- 2-((tert-Butoxycarbonyl)amino)-3-(5-nitro-1H-indol-3-yl)propanoic acid (CAS 917373-02-5)
- (3-Nitro-4-phenoxyphenyl)methyl benzoate (CAS 339279-26-4)
- 2-Methoxyethyl 6,11-dioxo-6,11-dihydrobenzo[f]pyrido[1,2-a]indole-12-carboxylate (CAS 670259-38-8)
- N-(3,5-Dichlorophenyl)-1H-1,2,4-triazol-5-amine (CAS 400074-75-1)
- n-(2-Methyl-1-phenylpropyl)furan-2-carboxamide (CAS 923680-87-9)
- 4-Amino-6-(6-methylpyridin-2-yl)-1,6-dihydro-1,3,5-triazine-2-thiol (CAS 1142208-76-1)
- (2-(4-Ethylphenyl)cyclopropyl)methanamine (CAS 1226414-03-4)
- Ubrogepant Impurity 29 (CAS CATO-C4X-340229)
- 6-Bromo-N-isopropylpyridin-2-amine (CAS 89026-81-3)
- 3-(tert-Butyl)-1-(3-iodo-4-methylphenyl)-1H-pyrazol-5-amine (CAS 294852-50-9)
- 1,18-Octadecanediol (CAS 3155-43-9)
- 2-(3-(Bromomethyl)phenyl)pyridine (CAS 1252011-37-2)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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