519-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 519-53-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,1 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 519-53:
(5*5)+(4*1)+(3*9)+(2*5)+(1*3)=69
69 % 10 = 9
So 519-53-9 is a valid CAS Registry Number.
519-53-9Relevant academic research and scientific papers
REGIOSELECTIVE O-DEMETHYLATION OF BISBENZYLISOQUINOLINE ALKALOIDS
Kunitomo, Jun-ichi,Oshikata, Megumi,Akasu, Michinori,Ishii, Hisashi
, p. 937 - 942 (2007/10/02)
The cleavage of methyl ethers of several bisbenzylisoquinoline alkaloids was studied and regioselective O-demethylation was observed.