57902-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57902-61-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,0 and 2 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57902-61:
(7*5)+(6*7)+(5*9)+(4*0)+(3*2)+(2*6)+(1*1)=141
141 % 10 = 1
So 57902-61-1 is a valid CAS Registry Number.