1-(4-Nitrophenyl)-3-methyl-5-phenylformazan CAS 68420-26-8
| CAS No. | 68420-26-8 |
| Molecular Formula | C14H13N5O2 |
| Molecular Weight | 283.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 1-(4-Nitrophenyl)-3-methyl-5-phenylformazan (CAS 68420-26-8), a certified reference material (molecular formula C14H13N5O2, MW 283.29 g/mol) for analytical method development and quality control.
1-(4-Nitrophenyl)-3-methyl-5-phenylformazan (C14H13N5O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C14H13N5O2 |
| Molecular Weight | 283.29 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 5 |
Related Nitrophenyl Standards
- 1-(2-Nitrophenyl)-4-phenylpiperazine (CAS 16264-15-6)
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- 2-(3-(4-Nitrophenyl)-1,2,4-oxadiazol-5-yl)phenol (CAS 144726-79-4)
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Recommended Standards
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- 10178-31-1 C20H32O Elliotinol W2808 (CAS 10178-31-1)
- 4-(3,3-Difluoro-1-pyrrolidinyl)piperidine Dihydrochloride (CAS 2089315-11-5)
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