38983-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 38983-91-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,9,8 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 38983-91:
(7*3)+(6*8)+(5*9)+(4*8)+(3*3)+(2*9)+(1*1)=174
174 % 10 = 4
So 38983-91-4 is a valid CAS Registry Number.