137117-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137117-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,1,1 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137117-40:
(8*1)+(7*3)+(6*7)+(5*1)+(4*1)+(3*7)+(2*4)+(1*0)=109
109 % 10 = 9
So 137117-40-9 is a valid CAS Registry Number.
137117-40-9Relevant academic research and scientific papers
Iodine atom transfer addition reactions with alkynes. Part 2: α-iodocarbonyls
Curran,Kim,Ziegler
, p. 6189 - 6196 (2007/10/02)
1°-Iodo esters, ketones, and nitriles react smoothly in atom transfer addition reactions with alkylsubstituted (nucleophilic) alkynes, but a 3°-iodoester prefers to add to ester-substituted (electrophilic) alkynes. These atom transfer additions are suited
