766558-09-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 766558-09-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,6,6,5,5 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 766558-09:
(8*7)+(7*6)+(6*6)+(5*5)+(4*5)+(3*8)+(2*0)+(1*9)=212
212 % 10 = 2
So 766558-09-2 is a valid CAS Registry Number.