261766-67-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 261766-67-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,1,7,6 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 261766-67:
(8*2)+(7*6)+(6*1)+(5*7)+(4*6)+(3*6)+(2*6)+(1*7)=160
160 % 10 = 0
So 261766-67-0 is a valid CAS Registry Number.