138372-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138372-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,7 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 138372-90:
(8*1)+(7*3)+(6*8)+(5*3)+(4*7)+(3*2)+(2*9)+(1*0)=144
144 % 10 = 4
So 138372-90-4 is a valid CAS Registry Number.
138372-90-4Relevant articles and documents
Silver-catalyzed regio- and stereoselective addition of carboxylic acids to ynol ethers
Yin, Jing,Bai, Yihui,Mao, Mengyi,Zhu, Gangguo
, p. 9179 - 9185 (2015/02/19)
A silver-catalyzed trans addition of carboxylic acids to ynol ethers is described. The reaction has a broad scope with respect to carboxylic acids and ynol ethers, delivering (Z)-α-alkoxy enol esters in good yields with excellent regio- and stereoselectiv
