1257858-74-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257858-74-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,8,5 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1257858-74:
(9*1)+(8*2)+(7*5)+(6*7)+(5*8)+(4*5)+(3*8)+(2*7)+(1*4)=204
204 % 10 = 4
So 1257858-74-4 is a valid CAS Registry Number.