222161-54-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 222161-54-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,1,6 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 222161-54:
(8*2)+(7*2)+(6*2)+(5*1)+(4*6)+(3*1)+(2*5)+(1*4)=88
88 % 10 = 8
So 222161-54-8 is a valid CAS Registry Number.