3-Methyl-3,4,7,8-tetrahydroquinoline-2,6(1H,5H)-dione CAS 77903-18-5
| CAS No. | 77903-18-5 |
| Molecular Formula | C10H13NO2 |
| Molecular Weight | 179.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Methyl-3,4,7,8-tetrahydroquinoline-2,6(1H,5H)-dione (CAS 77903-18-5), molecular formula C10H13NO2 and molecular weight 179.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H13NO2, 3-Methyl-3,4,7,8-tetrahydroquinoline-2,6(1H,5H)-dione contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 179.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H13NO2 |
| Molecular Weight | 179.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- 1,2,3,4-Tetrahydroquinoline-3-carboxylic acid (CAS 114527-53-6)
- 1,2,3,4-Tetrahydroquinoline-5-carboxylic acid (CAS 114527-54-7)
- 5,6,7,8-Tetrahydroquinoline-8-carboxylic acid (CAS 1256804-62-2)
- 5,6,7,8-Tetrahydroquinoline-6-carboxylic acid (CAS 1256822-12-4)
- 1,2,3,4-Tetrahydroquinoline-4-carboxylic acid (CAS 13337-69-4)
- 5,6,7,8-Tetrahydroquinoline-2-carboxylic acid (CAS 197007-84-4)
- (R)-1,2,3,4-tetrahydroquinoline-2-carboxylic acid (CAS 92977-00-9)
- (S)-1,2,3,4-tetrahydroquinoline-2-carboxylic acid (CAS 92976-98-2)
Recommended Standards
- 3-Methyl-2-(pyridin-3-yl)butanoic acid (CAS 699527-72-5)
- 3-Methylisothiazole-4-sulfonic acid (CAS 933-85-7)
- 3-Methyl-2-(pyridin-2-yl)butanoic acid (CAS 573999-02-7)
- 3-Morpholinophenol (CAS 27292-49-5)
- 1-(Carbamoylmethyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 1249437-36-2)
- 2-Bromo-5-(4H-1,2,4-triazol-4-yl)benzoic acid (CAS 1203043-34-8)
- Azasetron HCl (CAS 123040-16-4)
- (R)-4,4-difluoro-2-(3-((4,4,4-trifluorobutyl)sulfonyl)propyl)pyrrolidine (CAS 1670273-34-3)
- 4-(Benzyloxy)-3-chloro-5-methylbenzeneboronic acid (CAS 1050509-78-8)
- Isochroman-3-ol (CAS 42900-89-0)
- (2S,3S)-3-Methyl-2-(2,2,3,3-tetrafluoropropanamido)pentanoic acid (CAS 60108-43-2)
- 948294-54-0 2,7-Dichloro-3-(2-chloroethyl)quinoline DTXSID50588949 (CAS 948294-54-0)
- 3-(4-Allyl-5-thioxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)-1-(4-chlorobenzyl)pyridin-2(1H)-one (CAS 400074-99-9)
- Peptide 433 (CAS CATO-CPTD788433)
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