The chemical "9-acetoxy-8-(2,5-dichloro-phenylazo)-1,3,4,14a-tetrahydro-2H-anthra[1,9-de]pyrido[2,1-b][1,3]oxazine" is a complex organic compound with a molecular formula of C23H18Cl2N2O2. It features a tetrahydro-anthra[1,9-de]pyrido[2,1-b][1,3]oxazine core structure, which is a type of fused-ring system. The molecule is characterized by the presence of an acetoxy group at the 9-position, a dichloro-phenylazo group at the 8-position, and a 2H-anthra[1,9-de]pyrido[2,1-b][1,3]oxazine ring system. 9-acetoxy-8-(2,5-dichloro-phenylazo)-1,3,4,14a-tetrahydro-2H-anthra[1,9-de]pyrido[2,1-b][1,3]oxazine is likely to be used in advanced chemical research or as a precursor in the synthesis of other complex molecules due to its unique structure and functional groups.
The CAS Registry Mumber 3716-28-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,1 and 6 respectively; the second part has 2 digits, 2 and 8 respectively. Calculate Digit Verification of CAS Registry Number 3716-28: (6*3)+(5*7)+(4*1)+(3*6)+(2*2)+(1*8)=87 87 % 10 = 7 So 3716-28-7 is a valid CAS Registry Number.