159658-81-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159658-81-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,6,5 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 159658-81:
(8*1)+(7*5)+(6*9)+(5*6)+(4*5)+(3*8)+(2*8)+(1*1)=188
188 % 10 = 8
So 159658-81-8 is a valid CAS Registry Number.
159658-81-8Relevant articles and documents
Aqueous aza Diels-Alder reactions catalyzed by lanthanide(III) trifluoromethanesulfonates
Yu, Libing,Chen, Depu,Wang, Peng George
, p. 2169 - 2172 (1996)
Lanthanide(III) trifluoromethanesulfonates have been demonstrated to catalyze aqueous aza Diels-Alder reactions of an aldehyde and an amine hydrochloride with a diene.
