38421-16-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 38421-16-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,4,2 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 38421-16:
(7*3)+(6*8)+(5*4)+(4*2)+(3*1)+(2*1)+(1*6)=108
108 % 10 = 8
So 38421-16-8 is a valid CAS Registry Number.