133420-72-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133420-72-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,4,2 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 133420-72:
(8*1)+(7*3)+(6*3)+(5*4)+(4*2)+(3*0)+(2*7)+(1*2)=91
91 % 10 = 1
So 133420-72-1 is a valid CAS Registry Number.