Welcome to LookChem.com Sign In|Join Free


  • or


Post Buying Request

24456-79-9 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

24456-79-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 24456-79-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,4,5 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 24456-79:
119 % 10 = 9
So 24456-79-9 is a valid CAS Registry Number.



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017


1.1 GHS Product identifier

Product name 5-hydroxy-2-(5-hydroxy-7-methyl-1,4-dioxonaphthalen-2-yl)-7-methylnaphthalene-1,4-dione

1.2 Other means of identification

Product number -
Other names 5,5'-dihydroxy-7,7'-dimethyl-[2,2']binaphthalenylidene-1,4,1',4'-tetraone

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:24456-79-9 SDS

24456-79-9Relevant articles and documents


Sankaram, Akella V. B.,Reddy, Vaddu V. Narayana,Sidhu, Gurbachan S.

, p. 1093 - 1096 (1981)

Diosindigo A, diosindigo B and biramentaceone have been isolated from heartwood of Diospyros melanoxylon.A violet pigment isolated from the same source has been shown to be a new pentacyclic quinone.Sunlight causes diosindigo B to change to the pentacyclic quinone and biramentaceone.The intense peaks at m/e 389 and 388 in the mass spectrum of diosindigo B are doublets which arise by fragmentation of both M+ and M+ + 2.Key Word Index- Diospyros melanoxylon; Ebenaceae; naphthaquinones; diosindigo B; rearrangement; diosindigo A; biramentaceone.

Biomimetic synthesis of the dinaphthofuranquinone violet-quinone, utilizing oxidative dimerization with the ZrO2/O2 system

Ogata, Tokutaro,Okamoto, Iwao,Kotani, Eiichi,Takeya, Tetsuya

, p. 3941 - 3948 (2007/10/03)

The first total and biomimetic synthesis of violet-quinone (1), which has a dinaphthofuranquinone (DNFQ) framework, is described. This synthesis features the oxidative dimerization of 1-naphthol 4 and the construction of the DNFQ framework by photochemica

Dimeric Naphthoquinones, IV1). - Synthesis of Biramentaceone, Mamegakinone and Rotundiquinone

Laatsch, Hartmut

, p. 1321 - 1347 (2007/10/02)

Mamegakinone (8a), biramentaceone (12a), 3,3'-bijuglone (8b), 2,2-bijuglone (12b) and their methyl ethers were prepared by oxidative coupling of substituted 4-methoxy-1-naphthols; indigoids like 24 are intermediates.Cooxidation of the isomeric dimethoxy-1

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)


What can I do for you?
Get Best Price

Get Best Price for 24456-79-9