2,3-Dihydroxy-1,2-bis(4-methoxyphenyl)propan-1-one CAS 26692-68-2
| CAS No. | 26692-68-2 |
| Molecular Formula | C17H18O5 |
| Molecular Weight | 302.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H18O5, 2,3-Dihydroxy-1,2-bis(4-methoxyphenyl)propan-1-one contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 302.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
2,3-Dihydroxy-1,2-bis(4-methoxyphenyl)propan-1-one (CAS 26692-68-2), molecular formula C17H18O5 and molecular weight 302.32 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C17H18O5 |
| Molecular Weight | 302.32 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
Related Dihydroxy Standards
- 4,4'-Dihydroxy-2,6-dimethoxydihydrochalcone (CAS 151752-08-8)
- 1-(2,4-Dihydroxy-3,6-dimethoxyphenyl)-3-phenylpropan-1-one (CAS 54299-52-4)
- 1-(2,6-Dihydroxy-3,4-dimethoxyphenyl)-3-phenylpropan-1-one (CAS 41997-41-5)
- 2-[2-(3,5-Dihydroxy-phenyl)-ethyl]-6-methoxy-benzoic acid methyl ester (CAS 365542-96-7)
- 2',6'-Dihydroxy 4',4-dimethoxydihydrochalcone (CAS 35241-54-4)
- (3R)-8,2′-Dihydroxy-7,4′-dimethoxyisoflavan (CAS CATO-C3D-5880)
- Methyl 2-(2,6-dihydroxy-4-methylbenzoyl)-3-hydroxybenzoate (CAS 104022-80-2)
- 1-(3-(3,6-Dihydroxy-2-methylbenzoyl)-2,4-dihydroxyphenyl)ethan-1-one (CAS 115834-34-9)
Recommended Standards
- 2-(4-NITROPHENYL)ACETAMIDE (CAS 6321-12-6)
- 2-(4,8-Dimethyl-7-((2-methylallyl)oxy)-2-oxo-2h-chromen-3-yl)acetic acid (CAS 887833-29-6)
- 2-Acetyl-5-(benzyloxy)-3,4-dimethoxyphenol (CAS 25892-95-9)
- 2-(4,8,8-Trimethyl-2-oxo-7,8-dihydro-2h,6h-pyrano[3,2-g]chromen-3-yl)acetic acid (CAS 859134-97-7)
- tert-Butyl (2E,4E)-hexa-2,4-dien-1-ylcarbamate (CAS 115270-12-7)
- Methyl 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)benzoate (CAS 196301-95-8)
- 2,7-dichloro-1,6-naphthyridine (CAS 1393583-67-9)
- CAS 705950-23-8 (CAS 705950-23-8)
- 2-(Difluoromethyl)-3-iodo-4-methoxypyridine-5-sulfonamide (CAS 1806948-50-4)
- tert-Butyl (3aS,6aS)-6,6-difluorohexahydro-4H-pyrrolo[3,2-c]isoxazole-4-carboxylate (CAS 2597336-75-7)
- Torasemide EP Impurity E (CAS 72810-57-2)
- 3-Amino-4-chloro-N-(3-hydroxybutyl)benzenesulfonamide (CAS 1219982-99-6)
- 5,7-Dihydroxy-4-oxo-4H-chromene-2-carboxylic acid (CAS 35811-69-9)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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