2-Nitro-N-(triphenylphosphoranylidene)aniline CAS 31706-27-1
| CAS No. | 31706-27-1 |
| Molecular Formula | C24H19N2O2P |
| Molecular Weight | 398.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Nitro-N-(triphenylphosphoranylidene)aniline is closely related to a steroid core, an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Nitro-N-(triphenylphosphoranylidene)aniline (CAS 31706-27-1), molecular formula C24H19N2O2P and molecular weight 398.39 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Nitro-N-(triphenylphosphoranylidene)aniline (C24H19N2O2P) contains a steroid core, an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.5, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 398.39 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Nitro-N-(triphenylphosphoranylidene)aniline 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.
Physical & Chemical Properties
| Molecular Formula | C24H19N2O2P |
| Molecular Weight | 398.39 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) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
Related Nitro Standards
- 4-Nitro-N-(triphenylphosphoranylidene)aniline (CAS 14562-02-8)
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- Benzyl (2-nitro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (CAS 2377609-53-3)
- (3-Nitro-4-phenoxyphenyl)methyl N-(3-chlorophenyl)carbamate (CAS 338960-91-1)
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Recommended Standards
- 2-(2,4-Difluorophenyl)-4-methyl-6-(2-phenylthiazol-4-yl)-1,2,4-triazine-3,5(2H,4H)-dione (CAS 477854-26-5)
- 3-([1,1'-Biphenyl]-4-yl(phenyl)phosphoryl)benzoic acid (CAS 62350-79-2)
- (E)-2-Hydroxy-5-((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic acid (CAS 737754-28-8)
- 7-Chloro-1-nitroanthracene-9,10-dione (CAS 6337-83-3)
- Methyl 2-(3-chlorophenyl)-2-methylpropanoate (CAS 101233-58-3)
- 4-Butyl-6-(3-(dimethylamino)acryloyl)-7-hydroxy-8-methyl-2h-chromen-2-one (CAS 1821457-39-9)
- 5-(1-methylethyl)-2-Pyridinamine (CAS 603310-75-4)
- Mepivacaine Hydrochloride EP Impurity B (CAS 27262-43-7)
- 2H-Pyrrolo[2,3-d]pyrimidine (CAS 326-98-7)
- 6-Chloro-4-fluoro-2,3-dihydro-1H-inden-1-ol (CAS 1215279-94-9)
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- 3-Methoxy-4-methylphenylacetonitrile (CAS 64829-31-8)
- tert-Butyl ((1R)-2-((4-cyanobenzyl)oxy)cyclohexyl)carbamate (CAS 1951430-54-8)
- D-allo-Thr5-Semaglutide (CAS CATO-C4X-2226243)
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