3-(2,2-Dimethylchroman-6-yl)-7-hydroxy-4H-chromen-4-one CAS 40357-43-5
| CAS No. | 40357-43-5 |
| Molecular Formula | C20H18O4 |
| Molecular Weight | 322.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 322.35 g/mol gives 3-(2,2-Dimethylchroman-6-yl)-7-hydroxy-4H-chromen-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-(2,2-Dimethylchroman-6-yl)-7-hydroxy-4H-chromen-4-one (CAS 40357-43-5) is a high-purity analytical reference standard with the molecular formula C20H18O4 and a molecular weight of 322.35 g/mol.
3-(2,2-Dimethylchroman-6-yl)-7-hydroxy-4H-chromen-4-one (C20H18O4) contains a flavonoid core, a hydroxyl group, an ether linkage. 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.
As a certified reference material (CRM), 3-(2,2-Dimethylchroman-6-yl)-7-hydroxy-4H-chromen-4-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.
Physical & Chemical Properties
| Molecular Formula | C20H18O4 |
| Molecular Weight | 322.35 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
Related Dimethylchroman Standards
- Ethyl 2,2-dimethylchroman-6-carboxylate (CAS 6630-24-6)
- 3-(2,2-Dimethylchroman-6-yl)-1H-pyrazole (CAS 1005922-44-0)
- 2-(2,2-Dimethylchroman-6-yl)acetic acid (CAS 109978-87-2)
- Methyl 2,2-dimethylchroman-8-carboxylate (CAS 1350761-44-2)
- 6-Acetyl-2,2-dimethylchroman-4-one (CAS 68799-41-7)
- 2,2-Dimethylchroman-5-carboxylic acid (CAS 1956310-67-0)
- 2,2-Dimethylchroman-8-carboxylic acid (CAS 82553-56-8)
- 4,4-Dimethylchroman-8-carboxylic acid (CAS 2245322-56-7)
Recommended Standards
- 3-((4-Fluorophenyl)sulfonyl)-1-(4-methoxyphenyl)propan-1-one (CAS 477334-51-3)
- 3-(4-Methoxyphenyl)-7-((2-methylallyl)oxy)-2H-chromen-2-one (CAS 859658-52-9)
- 2-((4-Fluorophenyl)sulfonyl)-1-(4-hydroxy-3,5-dimethylphenyl)ethan-1-one (CAS 339100-34-4)
- 3,3'-(Anthracene-9,10-diyl)dipropanoic acid (CAS 71367-28-7)
- 6-Bromo-2’,3’,5’,6’-tetrahydrospiro[indoline-3,4’-pyran] (CAS 1202765-56-7)
- 4-Phenyl-2,3-dihydro-1h-imidazol-2-one (CAS 6794-69-0)
- n'-Amino-3-methylpyridine-2-carboximidamide (CAS 411210-74-7)
- 8-chloro-1H,2H,3H,4H-pyrazino[1,2-a]indole (CAS 126718-22-7)
- tert-Butyl 10-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate (CAS 1363380-92-0)
- 2,3-Dichloro-5-methylthiophenol (CAS 1803805-59-5)
- Labetalol Impurity 68 (CAS CATO-C4X-246668)
- N1-(6-(Pyrrolidin-1-yl)pyrimidin-4-yl)ethane-1,2-diamine (CAS 1706438-89-2)
- 8-Bromo-2-chloro-1,6-naphthyridin-7(6H)-one (CAS 2377495-27-5)
- Semaglutide Impurity 162 (x TFA Salt) (CAS CATO-C4X-2226162)
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