25663-67-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25663-67-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,6,6 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 25663-67:
(7*2)+(6*5)+(5*6)+(4*6)+(3*3)+(2*6)+(1*7)=126
126 % 10 = 6
So 25663-67-6 is a valid CAS Registry Number.