133741-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133741-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,7,4 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133741-87:
(8*1)+(7*3)+(6*3)+(5*7)+(4*4)+(3*1)+(2*8)+(1*7)=124
124 % 10 = 4
So 133741-87-4 is a valid CAS Registry Number.