(2S,3aS,7aS)-Octahydro-α,α-diphenyl-1H-indole-2-methanol CAS 142138-83-8
| CAS No. | 142138-83-8 |
| Molecular Formula | C21H25NO |
| Molecular Weight | 307.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(2S,3aS,7aS)-Octahydro-α,α-diphenyl-1H-indole-2-methanol (CAS 142138-83-8), molecular formula C21H25NO and molecular weight 307.43 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (2S,3aS,7aS)-Octahydro-α,α-diphenyl-1H-indole-2-methanol (C21H25NO) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H25NO |
| Molecular Weight | 307.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- 3-Phenoxy-1-Propanol (CAS 6180-61-6)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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