696664-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 696664-22-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,6,6,6 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 696664-22:
(8*6)+(7*9)+(6*6)+(5*6)+(4*6)+(3*4)+(2*2)+(1*2)=219
219 % 10 = 9
So 696664-22-9 is a valid CAS Registry Number.
696664-22-9Relevant articles and documents
The enantioselective total synthesis of alkaloid (-)-galipeine
Yang, Peng-Yu,Zhou, Yong-Gui
, p. 1145 - 1149 (2004)
The first total synthesis of (-)-galipeine was accomplished in seven steps with 54% overall yield from isovanillin based on Ir-catalyzed asymmetric hydrogenation of a quinoline derivative as a key step, with its absolute stereochemistry being established.