1-Methyl-5,6,7,8-tetrahydro-3,4-phenanthrenedione CAS 127791-78-0
| CAS No. | 127791-78-0 |
| Molecular Formula | C15H14O2 |
| Molecular Weight | 226.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Methyl-5,6,7,8-tetrahydro-3,4-phenanthrenedione (CAS 127791-78-0), molecular formula C15H14O2 and molecular weight 226.27 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C15H14O2, 1-Methyl-5,6,7,8-tetrahydro-3,4-phenanthrenedione contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 226.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-Methyl-5,6,7,8-tetrahydro-3,4-phenanthrenedione 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.
Physical & Chemical Properties
| Molecular Formula | C15H14O2 |
| Molecular Weight | 226.27 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
Related Methyl Standards
- 1-Benzyl-1,5,6,7-tetrahydro-4H-indazol-4-one (CAS 115310-16-2)
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Recommended Standards
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- (3-Aminoazetidin-1-yl)(naphthalen-2-yl)methanone (CAS 1275432-55-7)
- 2,3-Dehydro Ofloxacin (CAS 115841-55-9)
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- 1,1'-(1,1',3,3'-Tetrahydro[5,5'-biisobenzofuran]-6,6'-diyl)bis[1,1-diphenylphosphine] (CAS 959864-38-1)
- N-(2-(3-amino-2-oxopyridin-1(2H)-yl)ethyl)-N-(tert-butoxycarbonyl)glycine (CAS 2171110-42-0)
- 6,7-Dihydro-5H-pyrrolo[1,2-c]imidazol-7-amine (CAS 272438-86-5)
- (R)-2-(5-bromopyridin-2-yl)-4-phenyl-4,5-dihydrooxazole (CAS 2757083-31-9)
- 2-bromo-1-(isoquinolin-1-yl)ethan-1-one (CAS 894854-73-0)
- tert-butyl (3S)-3-amino-3-methylpyrrolidine-1-carboxylate (CAS 1613721-23-5)
- 2-(2,4-Dimethylphenoxy)-N-(5-methylisoxazol-3-yl)nicotinamide (CAS 1023435-45-1)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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