57507-12-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57507-12-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,0 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57507-12:
(7*5)+(6*7)+(5*5)+(4*0)+(3*7)+(2*1)+(1*2)=127
127 % 10 = 7
So 57507-12-7 is a valid CAS Registry Number.