770657-59-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 770657-59-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,0,6,5 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 770657-59:
(8*7)+(7*7)+(6*0)+(5*6)+(4*5)+(3*7)+(2*5)+(1*9)=195
195 % 10 = 5
So 770657-59-5 is a valid CAS Registry Number.