8-Methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline CAS 73903-30-7
| CAS No. | 73903-30-7 |
| Molecular Formula | C11H15NO |
| Molecular Weight | 177.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8-Methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline (CAS 73903-30-7), molecular formula C11H15NO and molecular weight 177.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 8-Methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 177.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C11H15NO |
| Molecular Weight | 177.24 g/mol |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
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Recommended Standards
- 8-Methoxy-2,3,4,5-tetrahydro-1H-benzo[c]azepine (CAS 247133-22-8)
- 8-methoxy-4-methyl-1,2,3,4-tetrahydroquinoline (CAS 89445-81-8)
- 8-Methoxy-1,2,3,4-tetrahydronaphthalen-2-amine (CAS 3880-77-1)
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