906542-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 906542-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,6,5,4 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 906542-91:
(8*9)+(7*0)+(6*6)+(5*5)+(4*4)+(3*2)+(2*9)+(1*1)=174
174 % 10 = 4
So 906542-91-4 is a valid CAS Registry Number.