7-Methoxy-1,6-dimethylisoquinoline-5,8-dione CAS 79664-58-7
| CAS No. | 79664-58-7 |
| Molecular Formula | C12H11NO3 |
| Molecular Weight | 217.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Methoxy-1,6-dimethylisoquinoline-5,8-dione meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies 7-Methoxy-1,6-dimethylisoquinoline-5,8-dione (CAS 79664-58-7), a certified reference material (molecular formula C12H11NO3, MW 217.22 g/mol) for analytical method development and quality control.
The molecular framework of 7-Methoxy-1,6-dimethylisoquinoline-5,8-dione (C12H11NO3) is characterized by an amino-acid-derived structure, 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 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.
Physical & Chemical Properties
| Molecular Formula | C12H11NO3 |
| Molecular Weight | 217.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
- 4-Methoxy-3-pyrrol-1-yl-benzoic acid (CAS 1000356-65-9)
- 3-Methoxy-6-(6-methoxypyridin-3-yl)pyridazine (CAS 1015481-14-7)
- 3-(6-Methoxy-1H-Indol-3-Yl)-Acrylic Acid (CAS 1018656-94-4)
- 6-Methoxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carbaldehyde (CAS 114561-35-2)
- (5Z)-4-Methoxy-5-[(phenylamino)methylidene]-2,5-dihydrofuran-2-one (CAS 1164540-98-0)
- 7-Methoxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carbaldehyde (CAS 118672-70-1)
- 4-Methoxy-8-methylquinoline-2-carboxylic acid (CAS 1351792-69-2)
- 4-Methoxy-6-methylquinoline-2-carboxylic acid (CAS 1351825-79-0)
Recommended Standards
- 7-Hydroxy-2,4-dimethylquinoline-8-carboxylic acid (CAS 91569-72-1)
- 7-Methoxy-2-methylquinoline-3-carboxylic acid (CAS 470702-34-2)
- 7-Ethyl-4-hydroxyquinoline-2-carboxylic acid (CAS 816448-98-3)
- 7-Methyl-1-(2-oxopropyl)indoline-2,3-dione (CAS 79552-55-9)
- 1-((1h-Benzo[d]imidazol-2-yl)methyl)-4-methylcyclohexane-1-carboxylic acid hydrochloride (CAS 1251923-03-1)
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- 2-(Aminomethyl)-5-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-sulfonamide (CAS 1361734-82-8)
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