28419-76-3

Basic information

• Product Name: 2H,8H-Benzo[1,2-b:3,4-b']dipyran-2-one,4-hydroxy-5-methoxy-3-(4-methoxyphenyl)-8,8-dimethyl- (9CI)
• Synonyms: 2H,8H-Benzo[1,2-b:3,4-b']dipyran-2-one,4-hydroxy-5-methoxy-3-(p-methoxyphenyl)-8,8-dimethyl- (8CI); a-Isorobustic acid
• CAS NO: 28419-76-3
• Molecular Formula: C22H20 O6
• Molecular Weight: 380.397
• Mol File: 28419-76-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 2H,8H-Benzo[1,2-b:3,4-b']dipyran-2-one,4-hydroxy-5-methoxy-3-(4-methoxyphenyl)-8,8-dimethyl- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 2H,8H-Benzo[1,2-b:3,4-b']dipyran-2-one,4-hydroxy-5-methoxy-3-(4-methoxyphenyl)-8,8-dimethyl- (9CI)(28419-76-3)
• EPA Substance Registry System: 2H,8H-Benzo[1,2-b:3,4-b']dipyran-2-one,4-hydroxy-5-methoxy-3-(4-methoxyphenyl)-8,8-dimethyl- (9CI)(28419-76-3)

Safety Data

• Hazardous Substances Data: 28419-76-3(Hazardous Substances Data)

Upstream product

• 18649-43-9 4-methoxyphenyllead(IV) triacetate 
• 132329-60-3 4-hydroxy-5-methoxy-8,8-dimethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran-2-one 
• 78648-13-2 4,5-dimethoxy-3-(4'-methoxyphenyl)-7-(1,1-dimethylprop-2-ynyloxy)coumarin 
• 3602-54-8 4,6-dihydroxy-2-methoxyacetophenone 
• 31525-67-4 dimethylacetal of 3-methyl-3-hydroxybutyraldehyde 
• 2174-64-3 5-methoxyresorcinol 
• 78648-19-8 7-hydroxy-4,5-dimethoxy-3-(4'-methoxyphenyl)coumarin 
• 78648-20-1 4,7-dihydroxy-5-methoxy-3-(4'-methoxyphenyl)coumarin 
• 25983-76-0 isoevodionol 

Relevant articles and documents

Application of Aryllead(IV) Derivatives to the Preparation of 3-Aryl-4-hydroxy-1-benzopyran-2-ones

Aryllead triacetates are chemoselective and regioselective reagents for the preparation of 3-aryl-4-hydroxy-1-benzopyran-2-ones in good to excellent yields by C-3 arylation of the preformed 4-hydroxy-1-benzopyran-2-one ring.This approach was applied to th

Synthesis of Linear 3-Phenylpyranocoumarins: Synthesis of Robustin, Robustic Acid, and their Methyl Ethers

The linear 3-phenylpyranocoumarins, viz., robustin (5b; R4 = H), its methyl ether (5b; R4 = Me), robustic acid (5c; R4 = H), its methyl ether (5c; R4 = Me), 4-methoxy-3-phenylxanthyletin (5a; R4 = H), and its methyl ether (5a; R4 = Me), have been synthesi