1261238-97-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1261238-97-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,1,2,3 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1261238-97:
(9*1)+(8*2)+(7*6)+(6*1)+(5*2)+(4*3)+(3*8)+(2*9)+(1*7)=144
144 % 10 = 4
So 1261238-97-4 is a valid CAS Registry Number.