(3,4-Dihydro-5,7-dihydroxy-2,2-dimethyl-2H-1-benzopyran-8-yl)phenylmethanone CAS 63565-07-1
| CAS No. | 63565-07-1 |
| Molecular Formula | C18H18O4 |
| Molecular Weight | 298.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(3,4-Dihydro-5,7-dihydroxy-2,2-dimethyl-2H-1-benzopyran-8-yl)phenylmethanone (CAS 63565-07-1) is a high-purity analytical reference standard with the molecular formula C18H18O4 and a molecular weight of 298.33 g/mol.
Structurally, (3,4-Dihydro-5,7-dihydroxy-2,2-dimethyl-2H-1-benzopyran-8-yl)phenylmethanone (C18H18O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 298.33 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures (3,4-Dihydro-5,7-dihydroxy-2,2-dimethyl-2H-1-benzopyran-8-yl)phenylmethanone under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H18O4 |
| Molecular Weight | 298.33 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Dihydro Standards
- (3,4-Dihydro-5,7-dihydroxy-2,2-dimethyl-2H-1-benzopyran-6-yl)phenylmethanone (CAS 86606-14-6)
- 1-(2,3-Dihydro-1,4-benzodioxine-6-sulfonyl)-1,4-diazepane (CAS 1082556-61-3)
- 1-((3,4-Dihydro-2h-benzo[b][1,4]dioxepin-7-yl)sulfonyl)piperazine (CAS 771499-94-6)
- 4-[3,4-Dihydro-2(1H)-isoquinolinyl]-3-nitrobenzoic acid (CAS 440347-91-1)
- N-(5,6-Dihydro-4H-cyclopenta[c]isoxazol-3-yl)-7-methoxybenzofuran-2-carboxamide (CAS 941967-00-6)
- 2-[[4,5-Dihydro-4-(2-methylphenyl)-5-thioxo-1,3,4-thiadiazol-2-yl]thio]acetic acid (CAS 790270-74-5)
- 6-(2-(8-Oxo-8,9-dihydro-7H-purin-6-yl)hydrazinyl)-8H-purin-8-one (CAS 52583-98-9)
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Recommended Standards
- (3AS,5aR,8aR,8bS)-2,2,7,7-tetramethyl-3a-((prop-2-yn-1-yloxy)methyl)tetrahydro-5H-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran (CAS 364733-08-4)
- (2E)-3-(3,4-Dimethoxyphenyl)-1-(3-methoxyphenyl)prop-2-en-1-one (CAS 358656-59-4)
- (4-Fluorophenyl)(2-(phenylamino)thiazol-5-yl)methanone (CAS 343376-29-4)
- (2E)-3-(2,5-Dimethoxyphenyl)-1-(3-methoxyphenyl)prop-2-en-1-one (CAS 219299-36-2)
- 1-(2-Bromo-1-propoxyethoxy)propane (CAS 61365-93-3)
- 3-(Hexadecylamino)propanohydrazide (CAS 1040689-30-2)
- 4-[(2,6-dichlorophenyl)methoxy]-3-ethoxybenzaldehyde (CAS 568556-77-4)
- n,n'-(2-Methyl-1,3-phenylene)dipropionamide (CAS 59518-00-2)
- 3-Formylphenyl 1-methyl-1h-pyrazole-5-carboxylate (CAS 512809-36-8)
- Promethazine EP Impurity C HCl (CAS 60113-77-1)
- [3-(methylamino)thietan-3-yl]methanol (CAS 1936194-16-9)
- 3-Phenyl-1H-indole (CAS 1504-16-1)
- Naltrexone EP Impurity A (CAS 1007856-83-8)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
Why CATO?
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