666852-65-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 666852-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,6,8,5 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 666852-65:
(8*6)+(7*6)+(6*6)+(5*8)+(4*5)+(3*2)+(2*6)+(1*5)=209
209 % 10 = 9
So 666852-65-9 is a valid CAS Registry Number.