327980-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 327980-16-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,7,9,8 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 327980-16:
(8*3)+(7*2)+(6*7)+(5*9)+(4*8)+(3*0)+(2*1)+(1*6)=165
165 % 10 = 5
So 327980-16-5 is a valid CAS Registry Number.