1621888-61-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1621888-61-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,1,8,8 and 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1621888-61:
(9*1)+(8*6)+(7*2)+(6*1)+(5*8)+(4*8)+(3*8)+(2*6)+(1*1)=186
186 % 10 = 6
So 1621888-61-6 is a valid CAS Registry Number.