138689-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138689-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,8 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138689-91:
(8*1)+(7*3)+(6*8)+(5*6)+(4*8)+(3*9)+(2*9)+(1*1)=185
185 % 10 = 5
So 138689-91-5 is a valid CAS Registry Number.
138689-91-5Relevant academic research and scientific papers
1-Mesityl-2,2,2-trifluoroethanol, an outstanding new chiral controller for catalyzed diels-alder reactions
Corey,Cheng, Xue-Min,Cimprich, Karlene A.
, p. 6839 - 6842 (2007/10/02)
The R2AlCl-catalyzed Diels-Alder reactions of cyclopentadiene with the (R)-1-mesityl-2,2,2-trifluoroethyl esters of acrylic and fumaric acid proceed with ? 97:3 diastereoselectivity.
