57857-90-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57857-90-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,8,5 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57857-90:
(7*5)+(6*7)+(5*8)+(4*5)+(3*7)+(2*9)+(1*0)=176
176 % 10 = 6
So 57857-90-6 is a valid CAS Registry Number.