1331784-30-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1331784-30-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,1,7,8 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1331784-30:
(9*1)+(8*3)+(7*3)+(6*1)+(5*7)+(4*8)+(3*4)+(2*3)+(1*0)=145
145 % 10 = 5
So 1331784-30-5 is a valid CAS Registry Number.
1331784-30-5Relevant articles and documents
Direct conversion of acetals to esters with high regioselectivity via O,P-acetals
Maegawa, Tomohiro,Otake, Kazuki,Goto, Akihiro,Fujioka, Hiromichi
, p. 5648 - 5651 (2011/09/15)
A new direct conversion of O,O-acetals to esters via O,P-acetal intermediates was developed. The regioselective cleavage of unsymmetrical cyclic acetals occurred to give the more crowded esters as single isomers.
