3-(3’,4’-Dimethoxyphenyl)-7-methoxy-4-methylcoumarin CAS 720674-23-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 720674-23-7 |
| Molecular Formula | C19H18O5 |
| Molecular Weight | 326.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(3’,4’-Dimethoxyphenyl)-7-methoxy-4-methylcoumarin (CAS 720674-23-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H18O5. Molecular weight: 326.34 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H18O5 |
| Molecular Weight | 326.34 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Related Dimethoxyphenyl Standards
- N4-(2,4-Dimethoxyphenyl)-N2-(2-methoxyethyl)-L-asparagine (CAS 1047992-56-2)
- 2-(3,4-Dimethoxyphenyl)-6-ethyl-3-hydroxychromen-4-one (CAS 1365271-38-0)
- 3-(2,4-Dimethoxyphenyl)-7-methoxy-4-methyl-2H-chromen-2-one (CAS 554430-78-3)
- 3-(3’,4’-Dimethoxyphenyl)-6-methoxy-4-methylcoumarin (CAS 720674-34-0)
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Recommended Standards
- 3-(4-Methyl-2-oxo-6,7,8,9-tetrahydro-2h-benzofuro[3,2-g]chromen-3-yl)propanoic acid (CAS 777857-60-0)
- 3-Allyl-2-(benzylthio)-6-(trifluoromethyl)pyrimidin-4(3H)-one (CAS 866143-14-8)
- 2-Naphthoic anhydride (CAS 20176-11-8)
- N-Butyl-4-oxo-8-phenyl-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide (CAS 946334-96-9)
- 3-benzoylbenzene-1-sulfonyl chloride (CAS 53558-61-5)
- 2-(Piperidin-1-ylsulfonyl)benzoic acid 746607-56-7 9117AE C12H15NO4S (CAS 746607-56-7)
- 1-(2-Methoxyphenyl)but-3-en-1-ol (CAS 24165-67-1)
- tert-Butyl N-[2-(4-bromophenyl)ethyl]carbamate (CAS 120157-97-3)
- (R)-tert-Butyl 3-((tert-butoxycarbonyl)amino)-4-hydroxybutanoate (CAS 439150-76-2)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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