137256-13-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137256-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,5 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137256-13:
(8*1)+(7*3)+(6*7)+(5*2)+(4*5)+(3*6)+(2*1)+(1*3)=124
124 % 10 = 4
So 137256-13-4 is a valid CAS Registry Number.