1552957-80-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1552957-80-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,5,2,9,5 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1552957-80:
(9*1)+(8*5)+(7*5)+(6*2)+(5*9)+(4*5)+(3*7)+(2*8)+(1*0)=198
198 % 10 = 8
So 1552957-80-8 is a valid CAS Registry Number.
1552957-80-8Relevant articles and documents
A click chemistry approach to secosteroidal macrocycles
Ibrahim-Ouali, Malika,Hamze, Khalil
, p. 102 - 110 (2014)
A new synthetic pathway towards secosteroidal macrocycles was described via a reaction of cycloaddition as the key step. The characteristic 1H and 13C NMR spectroscopic features of the synthesized compounds are reported.