133789-70-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133789-70-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,7,8 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 133789-70:
(8*1)+(7*3)+(6*3)+(5*7)+(4*8)+(3*9)+(2*7)+(1*0)=155
155 % 10 = 5
So 133789-70-5 is a valid CAS Registry Number.