2,3-Dimethyl-1,4,4a,9a-tetrahydroanthracene-9,10-dione CAS 2670-23-7
| CAS No. | 2670-23-7 |
| Molecular Formula | C16H16O2 |
| Molecular Weight | 240.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,3-Dimethyl-1,4,4a,9a-tetrahydroanthracene-9,10-dione (CAS 2670-23-7), molecular formula C16H16O2 and molecular weight 240.30 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2,3-Dimethyl-1,4,4a,9a-tetrahydroanthracene-9,10-dione (C16H16O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C16H16O2 |
| Molecular Weight | 240.30 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.) | 1957 |
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- 1,2-oxazinane (CAS 36652-42-3)
- 1-(3,5-Dichlorobenzyl)pyrrolidine-3-carboxylic acid (CAS 1491876-41-5)
- 2-Chloro-n-({2-[(morpholin-4-yl)methyl]phenyl}methyl)acetamide hydrochloride (CAS 1049758-67-9)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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