77765-49-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77765-49-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,6 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77765-49:
(7*7)+(6*7)+(5*7)+(4*6)+(3*5)+(2*4)+(1*9)=182
182 % 10 = 2
So 77765-49-2 is a valid CAS Registry Number.
77765-49-2Relevant articles and documents
A CONVERGENT SYNTHETIC ROUTE TO THE QUETTAMINES AND THE 7,8-DIOXYGENATED TETRAHYDROBENZYLISOQUINOLINE ALKALOIDS
Chattopadhyay, Sankar,Shamma, Maurice
, p. 697 - 701 (2007/10/02)
(+/-)-Quettamine (1) chloride, (+/-)-norjuziphine (12), (+/-)-juziphine (13) and (+/-)-oblongine (14) iodide have been synthesized.