1616872-99-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1616872-99-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,6,8,7 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1616872-99:
(9*1)+(8*6)+(7*1)+(6*6)+(5*8)+(4*7)+(3*2)+(2*9)+(1*9)=201
201 % 10 = 1
So 1616872-99-1 is a valid CAS Registry Number.