6,7-Dimethoxy-1-(2-methylbutyl)-3,4-dihydroisoquinoline CAS 20232-65-9
| CAS No. | 20232-65-9 |
| Molecular Formula | C16H23NO2 |
| Molecular Weight | 261.36 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.
6,7-Dimethoxy-1-(2-methylbutyl)-3,4-dihydroisoquinoline (CAS 20232-65-9), molecular formula C16H23NO2 and molecular weight 261.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6,7-Dimethoxy-1-(2-methylbutyl)-3,4-dihydroisoquinoline (C16H23NO2) is characterized by a nitrogen-containing heterocyclic scaffold, 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C16H23NO2 |
| Molecular Weight | 261.36 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Related Dimethoxy Standards
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- Ac-Val-Arg-Pro-Arg-AMC trifluoroacetate salt (CAS 919515-51-8)
- methyl 6-aminopyridazine-4-carboxylate (CAS 1780443-98-2)
- Methyl 4-(4-(tert-butyl)phenoxy)-3-nitrobenzoate (CAS 339105-08-7)
- (R)-[(1-Phenylethyl)amino]acetic Acid (CAS 78397-15-6)
- Hexanal (CAS 66-25-1)
- Bis((1S,2R,3S,5S)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl)borane (CAS 21947-87-5)
- 1-Methyl-4-nitro-2-phenylbenzene (CAS 13480-38-1)
- Mitoflaxone (CAS 87626-55-9)
- 6-Aminopyrimidine-4-carboxylic acid hydrate (CAS 7146-87-4)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
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