133841-03-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133841-03-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,4 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 133841-03:
(8*1)+(7*3)+(6*3)+(5*8)+(4*4)+(3*1)+(2*0)+(1*3)=109
109 % 10 = 9
So 133841-03-9 is a valid CAS Registry Number.