1-methyl-6-methylidene-8,9-dihydro-7H-naphtho[1,2-g][1]benzofuran-10,11-dione CAS 67656-29-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 67656-29-5 |
| Molecular Formula | C18H14O3 |
| Molecular Weight | 278.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-methyl-6-methylidene-8,9-dihydro-7H-naphtho[1,2-g][1]benzofuran-10,11-dione (CAS 67656-29-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H14O3. Molecular weight: 278.30 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H14O3 |
| Molecular Weight | 278.30 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
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Recommended Standards
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- tert-Butyl 3-oxotetrahydro-3H-oxazolo[3,4-a]pyrazine-7(1H)-carboxylate (CAS 935544-47-1)
- (2R,3S,4R,5R)-5,6-dihydroxy-2,3,4-tris(((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanal (CAS 104723-76-4)
- (5-((tert-Butoxycarbonyl)amino)pyridin-3-yl)boronic acid (CAS 1708122-98-8)
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