289681-48-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 289681-48-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,9,6,8 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 289681-48:
(8*2)+(7*8)+(6*9)+(5*6)+(4*8)+(3*1)+(2*4)+(1*8)=207
207 % 10 = 7
So 289681-48-7 is a valid CAS Registry Number.