387831-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 387831-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,7,8,3 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 387831-72:
(8*3)+(7*8)+(6*7)+(5*8)+(4*3)+(3*1)+(2*7)+(1*2)=193
193 % 10 = 3
So 387831-72-3 is a valid CAS Registry Number.