83816-37-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83816-37-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,8,1 and 6 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83816-37:
(7*8)+(6*3)+(5*8)+(4*1)+(3*6)+(2*3)+(1*7)=149
149 % 10 = 9
So 83816-37-9 is a valid CAS Registry Number.