71943-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71943-33-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,4 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71943-33:
(7*7)+(6*1)+(5*9)+(4*4)+(3*3)+(2*3)+(1*3)=134
134 % 10 = 4
So 71943-33-4 is a valid CAS Registry Number.