306749-87-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 306749-87-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,6,7,4 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 306749-87:
(8*3)+(7*0)+(6*6)+(5*7)+(4*4)+(3*9)+(2*8)+(1*7)=161
161 % 10 = 1
So 306749-87-1 is a valid CAS Registry Number.