1261234-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1261234-57-4 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 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1261234-57:
(9*1)+(8*2)+(7*6)+(6*1)+(5*2)+(4*3)+(3*4)+(2*5)+(1*7)=124
124 % 10 = 4
So 1261234-57-4 is a valid CAS Registry Number.