5-Methoxy-2,12-diphenyl-3,4-dihydrodipyrano[2,3-a:2',3',4'-kl]xanthen-9(2H)-one CAS 35290-22-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 35290-22-3 |
| Molecular Formula | C31H22O5 |
| Molecular Weight | 474.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Methoxy-2,12-diphenyl-3,4-dihydrodipyrano[2,3-a:2',3',4'-kl]xanthen-9(2H)-one (CAS 35290-22-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C31H22O5. Molecular weight: 474.50 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C31H22O5 |
| Molecular Weight | 474.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
Related Methoxy Standards
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- 2-Methoxy-N-(2-(((5-oxo-2,3-dihydro-5H-thiazolo[2,3-b]quinazolin-3-yl)methyl)thio)phenyl)benzamide (CAS 477868-84-1)
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Recommended Standards
- 2-[(2-Benzenesulfonamidophenyl)sulfanyl]-N-[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]acetamide (CAS 866038-92-8)
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- {2-[(4-methoxybenzoyloxy)methyl]-1-oxo-1,2,3,4-tetrahydronaphthalen-2-yl}methyl 4-methoxybenzoate (CAS 339029-06-0)
- Methyl 5-morpholinonicotinate (CAS 500865-54-3)
- 5-Methyl-2-Nitrophenol (CAS 700-38-9)
- methyl 5-methyl-4-nitro-1H-pyrazole-3-carboxylate (CAS 27116-86-5)
- 4-Bromo-2-chloro-3-(methoxymethoxy)pyridine (CAS 1542143-40-7)
- N-(3,4-Dimethylphenyl)-2-{[(4-fluorophenyl)sulfonyl]amino}propanamide (CAS 317378-02-2)
- 1-(6-Cyclobutylpyrimidin-4-yl)piperidin-3-ol (CAS 2098017-74-2)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
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