129230-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129230-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,2,3 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129230-69:
(8*1)+(7*2)+(6*9)+(5*2)+(4*3)+(3*0)+(2*6)+(1*9)=119
119 % 10 = 9
So 129230-69-9 is a valid CAS Registry Number.
129230-69-9Relevant academic research and scientific papers
Methylation of 3,3'-Dihydroxylated 2,2'-Binaphtho-1,4;1',4'-quinones
Laatsch, Hartmut
, p. 393 - 400 (2007/10/02)
Monomeric hydroxy-p-quinones (1) are in equilibrium with the corresponding o-quinones (2) and on methylation, a mixture of both isomeric ethers is obtained.In contrast, dimeric hydroxynaphthoquinones with 3a-skeleton in treatment with diazomethane are yie
