137166-30-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137166-30-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,1,6 and 6 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137166-30:
(8*1)+(7*3)+(6*7)+(5*1)+(4*6)+(3*6)+(2*3)+(1*0)=124
124 % 10 = 4
So 137166-30-4 is a valid CAS Registry Number.