2-Methyl-1,2-dihydroisoquinoline CAS 14990-40-0
| CAS No. | 14990-40-0 |
| Molecular Formula | C24H16O2 |
| Molecular Weight | 336.38 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.
2-Methyl-1,2-dihydroisoquinoline (CAS 14990-40-0), molecular formula C24H16O2 and molecular weight 336.38 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Methyl-1,2-dihydroisoquinoline (C24H16O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 336.38 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).
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 | C24H16O2 |
| Molecular Weight | 336.38 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
Related Methyl Standards
- 5,6-Dihydroisoquinoline-5,6-diol (CAS 87707-13-9)
- Benzyl 3,4-dihydroisoquinoline-2(1H)-carboxylate (CAS 142266-67-9)
- 1-Phenyl-3,4-dihydroisoquinoline-7-carbaldehyde (CAS 823236-18-6)
- 1-Benzyl-3,4-dihydroisoquinoline (CAS 24853-83-6)
- 1-Methyl-3,4-dihydroisoquinoline hydrochloride (CAS 26210-39-9)
- 1,1'-(3,4-Dihydroisoquinoline-2,5(1H)-diyl)diethanone (CAS 108825-20-3)
- Ethyl 3,4-dihydroisoquinoline-1-carboxylate (CAS 88612-00-4)
- 1-Oxo-1,2-dihydroisoquinoline-4-carbohydrazide (CAS 103262-50-6)
Recommended Standards
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