| CAS No. | 956923-23-2 |
| Molecular Formula | C27H21N3O2S |
| Molecular Weight | 451.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of (2Z)-2-(Benzenesulfonyl)-3-[3-(2,3-dihydro-1H-inden-5-yl)-1-phenyl-1H-pyrazol-4-yl]prop-2-enenitrile is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(2Z)-2-(Benzenesulfonyl)-3-[3-(2,3-dihydro-1H-inden-5-yl)-1-phenyl-1H-pyrazol-4-yl]prop-2-enenitrile (CAS 956923-23-2), molecular formula C27H21N3O2S and molecular weight 451.54 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (2Z)-2-(Benzenesulfonyl)-3-[3-(2,3-dihydro-1H-inden-5-yl)-1-phenyl-1H-pyrazol-4-yl]prop-2-enenitrile (C27H21N3O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 451.54 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.
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.
| Molecular Formula | C27H21N3O2S |
| Molecular Weight | 451.54 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |