2-acetyl-3-hydroxy-4-methyl-6H,7H,8H,9H,10H-cyclohexa[c]chromen-6-one CAS 86557-18-8
| CAS No. | 86557-18-8 |
| Molecular Formula | C16H16O4 |
| Molecular Weight | 272.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-acetyl-3-hydroxy-4-methyl-6H,7H,8H,9H,10H-cyclohexa[c]chromen-6-one 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.
2-acetyl-3-hydroxy-4-methyl-6H,7H,8H,9H,10H-cyclohexa[c]chromen-6-one (CAS 86557-18-8), molecular formula C16H16O4 and molecular weight 272.30 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-acetyl-3-hydroxy-4-methyl-6H,7H,8H,9H,10H-cyclohexa[c]chromen-6-one (C16H16O4) contains a flavonoid core, 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 272.30 g/mol, it falls into the medium-molecular-weight range. 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 | C16H16O4 |
| Molecular Weight | 272.30 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 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.) | 1981 |
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Recommended Standards
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- 3-Bromo-N,N-diisopropylbenzamide (CAS 35309-72-9)
- 1-(2,4-Dimethoxybenzoyl)pyrrolidine-2-carboxylic acid (CAS 1103891-72-0)
- Z-DL-Phg-NH2 (CAS 125515-95-9)
- 2-{2-[(4-Methylbenzyl)oxy]ethyl}piperidinehydrochloride (CAS 1219980-88-7)
- 7-Chlorofuro[2,3-c]quinolin-4(5H)-one (CAS 89972-50-9)
- 3-(3-Methyl-2,5-dioxopyrrolidin-1-yl)benzoic acid (CAS 832739-55-6)
- n-(Cyclohex-3-en-1-ylmethyl)-2-fluoroaniline (CAS 1041587-60-3)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
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