16622-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16622-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,2 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 16622-78:
(7*1)+(6*6)+(5*6)+(4*2)+(3*2)+(2*7)+(1*8)=109
109 % 10 = 9
So 16622-78-9 is a valid CAS Registry Number.