1684452-85-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1684452-85-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,8,4,4,5 and 2 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1684452-85:
(9*1)+(8*6)+(7*8)+(6*4)+(5*4)+(4*5)+(3*2)+(2*8)+(1*5)=204
204 % 10 = 4
So 1684452-85-4 is a valid CAS Registry Number.