771580-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 771580-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,1,5,8 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 771580-93:
(8*7)+(7*7)+(6*1)+(5*5)+(4*8)+(3*0)+(2*9)+(1*3)=189
189 % 10 = 9
So 771580-93-9 is a valid CAS Registry Number.