57766-47-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57766-47-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,6 and 6 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57766-47:
(7*5)+(6*7)+(5*7)+(4*6)+(3*6)+(2*4)+(1*7)=169
169 % 10 = 9
So 57766-47-9 is a valid CAS Registry Number.