1621478-70-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1621478-70-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,1,4,7 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1621478-70:
(9*1)+(8*6)+(7*2)+(6*1)+(5*4)+(4*7)+(3*8)+(2*7)+(1*0)=163
163 % 10 = 3
So 1621478-70-3 is a valid CAS Registry Number.