1,4,5-Trihydroxy-2-methylanthracene-9,10-dione CAS 476-56-2
| CAS No. | 476-56-2 |
| Molecular Formula | C15H10O5 |
| Molecular Weight | 270.24 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.
1,4,5-Trihydroxy-2-methylanthracene-9,10-dione (CAS 476-56-2), molecular formula C15H10O5 and molecular weight 270.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,4,5-Trihydroxy-2-methylanthracene-9,10-dione (C15H10O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 270.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C15H10O5 |
| Molecular Weight | 270.24 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Trihydroxy Standards
- 3,7,8-Trihydroxy-2-phenyl-4H-chromen-4-one (CAS 108238-51-3)
- 1,2,5-Trihydroxy-3-methylanthracene-9,10-dione (CAS 60445-01-4)
- 1,2,5-Trihydroxy-6-methylanthracene-9,10-dione (CAS 478-29-5)
- 1,2,8-Trihydroxy-3-methylanthracene-9,10-dione (CAS 58322-78-4)
- 1,5,8-Trihydroxy-3-methylanthracene-9,10-dione (CAS 518-80-9)
- 7,3’,4’-Trihydroxy-3-benzyl-2H-chromene (CAS 1111897-60-9)
- 1,3,8-Trihydroxy-6-(hydroxymethyl)anthracen-9(10H)-one (CAS 61350-20-7)
- 2,5,7-trihydroxy-2-phenylchroman-4-one (CAS 40489-17-6)
Recommended Standards
- 1,2-Bis(4-nitrophenyl)ethene (CAS 2501-02-2)
- 1,4-Dihydroxy-2-(hydroxymethyl)anthracene-9,10-dione (CAS 22296-59-9)
- 1,4-Dihydroxy-6-methoxyanthracene-9,10-dione (CAS 72473-66-6)
- 1,5-Bis(hydroxyamino)anthracene-9,10-dione (CAS 60080-32-2)
- 4-[5-(4-Chlorophenyl)-1-(2,5-dichlorophenyl)-1H-pyrazole-3-carbonyl]morpholine (CAS 477712-08-6)
- N-methyl-N-phenylmorpholin-3-amine (CAS 1489640-57-4)
- tert-Butyl 4-(((5-chloropyrimidin-2-yl)amino)methyl)piperidine-1-carboxylate (CAS 1261232-96-5)
- 2-MEthyl-5-(2,2,2-trifluoro-acetylamino)-benzoic acid methyl ester (CAS 2092930-01-1)
- 6-(Thiophen-2-yl)-1,3,5-triazine-2,4-diamine (CAS 35841-87-3)
- 4-((1-(dimethylamino)-3-(4-(3-methoxyphenethyl)phenoxy)propan-2-yl)oxy)-4-oxobutanoic acid (CAS CATO-C4X-291341)
- 3-Chloromethyl-2-methoxy-4-(trifluoromethyl)pyridine (CAS 1227581-29-4)
- Pretomanid Impurity 11 (CAS 24331-72-4)
- Tulathromycin A Impurity 4 (CAS CATO-C4X-21075)
- D-Ile17-Tirzepatide (CAS CATO-CPTD788917)
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