441-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 441-91-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,4 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 441-91:
(5*4)+(4*4)+(3*1)+(2*9)+(1*1)=58
58 % 10 = 8
So 441-91-8 is a valid CAS Registry Number.
InChI:InChI=1/C19H22N2O/c1-14-17(10-11-20)18-12-16(22-2)8-9-19(18)21(14)13-15-6-4-3-5-7-15/h3-9,12H,10-11,13,20H2,1-2H3