57780-85-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57780-85-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,8 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 57780-85:
(7*5)+(6*7)+(5*7)+(4*8)+(3*0)+(2*8)+(1*5)=165
165 % 10 = 5
So 57780-85-5 is a valid CAS Registry Number.