304671-81-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304671-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,6,7 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 304671-81:
(8*3)+(7*0)+(6*4)+(5*6)+(4*7)+(3*1)+(2*8)+(1*1)=126
126 % 10 = 6
So 304671-81-6 is a valid CAS Registry Number.