78816-29-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78816-29-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,1 and 6 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78816-29:
(7*7)+(6*8)+(5*8)+(4*1)+(3*6)+(2*2)+(1*9)=172
172 % 10 = 2
So 78816-29-2 is a valid CAS Registry Number.
78816-29-2Relevant articles and documents
A NEW SYNTHESIS OF Δ2-BUTENOLIDES VIA STEREOSELECTIVE FORMATION OF α,β-ETHYLENIC ESTERS
Larcheveque, M.,Legueut, Ch.,Debal, A.,Lallemand, J. Y.
, p. 1595 - 1598 (1981)
A new synthesis of Δ2-butenolides is described which involves stereoselective condensation of an α-silyl ester anion with an α-ketoacetal.
