1291384-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1291384-27-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,1,3,8 and 4 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1291384-27:
(9*1)+(8*2)+(7*9)+(6*1)+(5*3)+(4*8)+(3*4)+(2*2)+(1*7)=164
164 % 10 = 4
So 1291384-27-4 is a valid CAS Registry Number.