291773-88-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 291773-88-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,1,7,7 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 291773-88:
(8*2)+(7*9)+(6*1)+(5*7)+(4*7)+(3*3)+(2*8)+(1*8)=181
181 % 10 = 1
So 291773-88-1 is a valid CAS Registry Number.
291773-88-1Relevant articles and documents
A new synthesis of N-alkyl pyrazolidine-3,5-diones and tetrahydropyridazine-3,6-diones
Le Bourdonnec,Meulon,Yous,Houssin,Henichart
, p. 1209 - 1212 (2007/10/03)
N-alkyl pyrazolidine-3,5-diones and tetrahydropyridazine-3,6-diones have been synthesized by a new method in a three-step sequence from dialkyl malonates or succinates respectively.