31039-64-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31039-64-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,3 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31039-64:
(7*3)+(6*1)+(5*0)+(4*3)+(3*9)+(2*6)+(1*4)=82
82 % 10 = 2
So 31039-64-2 is a valid CAS Registry Number.
31039-64-2Relevant academic research and scientific papers
Dimeric Naphthoquinones, XV. Syntheses of Diomelquinone A and its Dimer, 7,7'-Dihydroxy-8,8'-dimethoxy-3,3'-dimethyl-2,2'-bi-1,4-naphthoquinone
Laatsch, Hartmut
, p. 1847 - 1865 (2007/10/02)
Diomelquinone A (3b) and its dimer 3a are synthesized starting from 8-chloroplumbagin (4a) or juglone (2a); the ortho-quinones 7a and 11a are intermediates.
