Rel-(3S,3aR)-2,3-diphenyl-3,3a,4,5-tetrahydro-2H-benzo[g]indazole CAS 102693-99-2
| CAS No. | 102693-99-2 |
| Molecular Formula | C23H20N2 |
| Molecular Weight | 324.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Rel-(3S,3aR)-2,3-diphenyl-3,3a,4,5-tetrahydro-2H-benzo[g]indazole (CAS 102693-99-2), molecular formula C23H20N2 and molecular weight 324.42 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H20N2, Rel-(3S,3aR)-2,3-diphenyl-3,3a,4,5-tetrahydro-2H-benzo[g]indazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 324.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C23H20N2 |
| Molecular Weight | 324.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
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