57660-34-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57660-34-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,6 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57660-34:
(7*5)+(6*7)+(5*6)+(4*6)+(3*0)+(2*3)+(1*4)=141
141 % 10 = 1
So 57660-34-1 is a valid CAS Registry Number.