7622-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7622-11-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,2 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7622-11:
(6*7)+(5*6)+(4*2)+(3*2)+(2*1)+(1*1)=89
89 % 10 = 9
So 7622-11-9 is a valid CAS Registry Number.