Tetramethyl 1-methyl-3a,7a-dihydro-1H-indole-2,3,3a,4-tetracarboxylate CAS 1444-11-7
| CAS No. | 1444-11-7 |
| Molecular Formula | C17H19NO8 |
| Molecular Weight | 365.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Tetramethyl 1-methyl-3a,7a-dihydro-1H-indole-2,3,3a,4-tetracarboxylate (C17H19NO8) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 365.33 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).
Tetramethyl 1-methyl-3a,7a-dihydro-1H-indole-2,3,3a,4-tetracarboxylate (CAS 1444-11-7) is a high-purity analytical reference standard with the molecular formula C17H19NO8 and a molecular weight of 365.33 g/mol.
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 | C17H19NO8 |
| Molecular Weight | 365.33 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- N-Acetyl-2-O-methyl-α-neuraminic Acid 9-Acetate (CAS 143791-32-6)
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- 5-(3-Nitrophenyl)-1-(3-(trifluoromethyl)phenyl)-1h-imidazole-2-thiol (CAS 1105189-24-9)
- (5E)-5-({2-[3-(trifluoromethyl)phenoxy]phenyl}methylidene)-1,3-thiazolidine-2,4-dione (CAS 917607-23-9)
- 2-(Aminomethyl)-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylic acid (CAS 1805293-85-9)
- (4-Nitrophenyl)-L-alanine (CAS 125376-35-4)
- (1r)-1-(4-Ethylphenyl)ethan-1-ol (CAS 54225-75-1)
- 4-((1,7-Naphthyridin-8-yl)amino)-4-oxobutanoic acid (CAS 396682-90-9)
- 1-(4-Chlorophenyl)-N-methyl-4-oxo-1,4-dihydropyridazine-3-carboxamide (CAS 672925-43-8)
- 2-Chloro-1-[4-(4-fluorobenzenesulfonyl)piperazin-1-yl]ethan-1-one (CAS 158939-09-4)
- 5-Methyl-2-thienylzinc bromide 0.5 M in Tetrahydrofuran (CAS 1233318-32-5)
- Lacmoid (CAS 1787-53-7)
- 2-(2,5-Dimethoxy-4-methylphenyl)cyclobutanone (CAS 90791-16-5)
- Semaglutide Impurity 183 (CAS 159541-28-3)
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