133671-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133671-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,7 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 133671-20:
(8*1)+(7*3)+(6*3)+(5*6)+(4*7)+(3*1)+(2*2)+(1*0)=112
112 % 10 = 2
So 133671-20-2 is a valid CAS Registry Number.