57703-48-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57703-48-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,0 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 57703-48:
(7*5)+(6*7)+(5*7)+(4*0)+(3*3)+(2*4)+(1*8)=137
137 % 10 = 7
So 57703-48-7 is a valid CAS Registry Number.