1174915-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1174915-34-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,4,9,1 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1174915-34:
(9*1)+(8*1)+(7*7)+(6*4)+(5*9)+(4*1)+(3*5)+(2*3)+(1*4)=164
164 % 10 = 4
So 1174915-34-4 is a valid CAS Registry Number.
1174915-34-4Relevant articles and documents
Synthesis, anti-virus and anti-tumour activities of dibenzylbutyrolactone lignans and their analogues
Xia, Yamu,You, Jia,Zhang, Yuanyuan,Su, Zhongliang
, p. 565 - 569 (2009)
An efficient synthesis of dibenzylbutyrolactone lignans and their analogues has been developed. Based on a Stobbe condensation of piperonal or veratraldehyde with diethylsuccinate and alkylation with 3,4- methylenedioxybenzyl bromide to give the skeleton
