38039-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 38039-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,0,3 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 38039-98:
(7*3)+(6*8)+(5*0)+(4*3)+(3*9)+(2*9)+(1*8)=134
134 % 10 = 4
So 38039-98-4 is a valid CAS Registry Number.