2-Methyl-5,6,7,8-tetrahydro-3,4-phenanthrenedione CAS 127791-77-9
| CAS No. | 127791-77-9 |
| Molecular Formula | C15H14O2 |
| Molecular Weight | 226.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Methyl-5,6,7,8-tetrahydro-3,4-phenanthrenedione (CAS 127791-77-9), molecular formula C15H14O2 and molecular weight 226.27 g/mol, is a CATO reference standard with documented purity and traceability.
2-Methyl-5,6,7,8-tetrahydro-3,4-phenanthrenedione (C15H14O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | 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)
- 1-Methyl-5,6,7,8-tetrahydro-3,4-phenanthrenedione (CAS 127791-78-0)
- (R)-7-(tetrahydro-2H-pyran-4-yl)tetrahydro-1H-oxazolo[3,4-a]pyrazin-3(5H)-one (CAS 1795784-46-1)
- (1-Methyl-5-(((tetrahydro-2H-pyran-2-yl)oxy)methyl)-1H-pyrazol-3-yl)methanol (CAS 2245716-15-6)
- 4-Phenyl-5,6,7,8-tetrahydro-1,6-naphthyridin-2(1H)-one (CAS 199785-90-5)
- 2-(3-Oxo-3,5,6,8-tetrahydro-2H-thiopyrano[3,4-c]pyridazin-2-yl)acetic acid (CAS 1352498-05-5)
- 5-(2-(Tetrahydro-2h-pyran-2-yl)ethyl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 1340227-17-9)
- Ethyl 5-(tetrahydro-2h-pyran-4-yl)-1,2,4-oxadiazole-3-carboxylate (CAS 1341975-51-6)
Recommended Standards
- (3-Aminoazetidin-1-yl)(naphthalen-1-yl)methanone (CAS 1275804-86-8)
- (3-Aminoazetidin-1-yl)(naphthalen-2-yl)methanone (CAS 1275432-55-7)
- 3-(6-Ethyl-4-oxoquinolin-1(4H)-yl)propanenitrile (CAS 1279218-88-0)
- Tert-butyl (2S,4R)-4-cyano-2-(hydroxymethyl)pyrrolidine-1-carboxylate (CAS 1269755-22-7)
- 4-Chloro-6-(1H-imidazol-1-yl)-5-nitropyrimidine (CAS 882283-67-2)
- H-D-Val-OtBu · HCl (CAS 104944-18-5)
- (4-Chloropyrimidin-2-yl)methanamine hydrochloride (CAS 1646556-93-5)
- Methyl 3-(4-cyanophenyl)bicyclo[1.1.1]Pentane-1-carboxylate (CAS 131515-53-2)
- 2-(2,5-Dimethyl-1-phenyl-1H-pyrrol-3-yl)ethan-1-amine (CAS 872107-74-9)
- Pomalidomide-CO-C4-Br (CAS 2162120-76-3)
- 3-(6-Fluorobenzo[d]isoxazol-3-yl)piperidine-2,6-dione (CAS 2623102-65-6)
- (5-Methoxy-2-(trifluoromethyl)phenyl)methanol (CAS 1261682-03-4)
- 5-(4-Methylpiperazin-1-yl)-2-furaldehyde (CAS 610279-56-6)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com