257876-76-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 257876-76-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,8,7 and 6 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 257876-76:
(8*2)+(7*5)+(6*7)+(5*8)+(4*7)+(3*6)+(2*7)+(1*6)=199
199 % 10 = 9
So 257876-76-9 is a valid CAS Registry Number.