159849-68-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159849-68-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,8,4 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 159849-68:
(8*1)+(7*5)+(6*9)+(5*8)+(4*4)+(3*9)+(2*6)+(1*8)=200
200 % 10 = 0
So 159849-68-0 is a valid CAS Registry Number.
159849-68-0Relevant articles and documents
Aqueous hetero Diels-Alder reactions: The carbonyl case
Lubineau,Auge,Grand,Lubin
, p. 10265 - 10276 (1994)
Commercially available aqueous solution of glyoxylic acid, pyruvaldehyde and glyoxal were shown to react with cyclic or non-cyclic dienes to give the corresponding cycloadducts and/or α-hydroxy γ-lactones. Activated ketone (Pyruvic acid) was shown to react as well in the same conditions.