1257585-84-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257585-84-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,5,8 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1257585-84:
(9*1)+(8*2)+(7*5)+(6*7)+(5*5)+(4*8)+(3*5)+(2*8)+(1*4)=194
194 % 10 = 4
So 1257585-84-4 is a valid CAS Registry Number.