60548-89-2

Basic information

• Product Name: 5-Hydroxy-2-(1,2-dihydro-5-hydroxy-4-methoxy-7-methyl-1-oxonaphthalen-2-ylidene)-4-methoxy-7-methylnaphthalen-1(2H)-one
• Synonyms: 5-Hydroxy-2-(1,2-dihydro-5-hydroxy-4-methoxy-7-methyl-1-oxonaphthalen-2-ylidene)-4-methoxy-7-methylnaphthalen-1(2H)-one;Diosindigo B
• CAS NO: 60548-89-2
• Molecular Formula: C24H20 O6
• Molecular Weight: 404.41
• Mol File: 60548-89-2.mol
• Article Data: 2

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 5-Hydroxy-2-(1,2-dihydro-5-hydroxy-4-methoxy-7-methyl-1-oxonaphthalen-2-ylidene)-4-methoxy-7-methylnaphthalen-1(2H)-one(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Hydroxy-2-(1,2-dihydro-5-hydroxy-4-methoxy-7-methyl-1-oxonaphthalen-2-ylidene)-4-methoxy-7-methylnaphthalen-1(2H)-one(60548-89-2)
• EPA Substance Registry System: 5-Hydroxy-2-(1,2-dihydro-5-hydroxy-4-methoxy-7-methyl-1-oxonaphthalen-2-ylidene)-4-methoxy-7-methylnaphthalen-1(2H)-one(60548-89-2)

Safety Data

• Hazardous Substances Data: 60548-89-2(Hazardous Substances Data)

Upstream product

• 33471-51-1 1,4,5-Tris(acetoxy)-7-methylnaphthalin 
• 14787-38-3 7-methyljuglone 
• 75445-59-9 1,4,8-Tris(acetoxy)-5-chlor-6-methylnaphthalin 
• 75445-77-1 1,5-Bis(benzyloxy)-4-methoxy-7-methylnaphthalin 
• 75445-72-6 4,8-Bis(benzyloxy)-6-methyl-1-naphthol 
• 75445-65-7 5-Benzyloxy-7-methyl-naphthalene-1,4-diol 
• 75445-60-2 5-(benzyloxy)-7-methylnaphthalene-1,4-dione 
• 52431-61-5 5-chloro-8-hydroxy-6-methylnaphthalene-1,4-dione 
• 59-50-7 4-Chloro-3-methylphenol 
• 60548-87-0 4-methoxy-7-methyl-1,5-naphthylene diacetate 
• 53395-11-2 1-methoxy-7-methyl-4,5-naphthylene diacetate 
• 75445-83-9 4-Methoxy-7-methyl-1,5-naphthalindiol 
• 75445-62-4 4,5-dihydroxy-1-methoxy-7-methylnaphthalene 

Downstream Products

• 24456-79-9 5,5'-dihydroxy-7,7'-dimethyl-[2,2']binaphthalenylidene-1,4,1',4'-tetraone 

Relevant articles and documents

Oxidative coupling of methoxynaphthylenediols

The oxidative coupling of a mixture of 1-methoxy-7-methyl-4,5- naphthylenediol and 4-methoxy-7-methyl-1,5-naphthylenediol using lead(IV) oxide gives the symmetrical bisnaphthalene indigos diosindigo A and diosindigo B together with the corresponding unsymmetrical isomer. Oxidation of the first two by nitric acid gives the binaphthyldiquinones mamegakinone and biramentaceone, respectively; the third gives the unsymmetrical diquinone rotundiquinone. Similar oxidations of related naphthylenediols are described.