117726-67-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117726-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,2 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 117726-67:
(8*1)+(7*1)+(6*7)+(5*7)+(4*2)+(3*6)+(2*6)+(1*7)=137
137 % 10 = 7
So 117726-67-7 is a valid CAS Registry Number.
117726-67-7Relevant academic research and scientific papers
STERICALLY-DRIVEN ANHYDRIDE FORMATION
Belletire, J. L.,Conroy, G. M.
, p. 403 - 416 (2007/10/02)
Oxidative coupling of highly substituted carboxylic acid dianions affords hindered succinic acid derivatives which undergo facile intramolecular anhydride formation.A novel, but low yield, synthetic sequence converts 4'-methoxypropiophenone into diethylstilbestrol.
