5-Hydroxy-3-oxo-12-methyl-1,2,3,11,12,12a-hexahydro-benzo[d]pyren is a complex organic compound belonging to the class of polycyclic aromatic hydrocarbons (PAHs). It is characterized by a fused ring structure consisting of five benzene rings and one pyrene nucleus, with a methyl group at the 12th position, a hydroxyl group at the 5th position, and a ketone group at the 3rd position. 5-Hydroxy-3-oxo-12-methyl-1,2,3,11,12,12a-hexahydro-benzopyren is formed during the incomplete combustion of organic materials, such as fossil fuels and tobacco, and is considered a potential carcinogen due to its ability to bind to DNA and cause mutations. It is also an environmental pollutant that can be found in air, water, and soil, posing risks to both human health and ecosystems.
The CAS Registry Mumber 4512-80-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,1 and 2 respectively; the second part has 2 digits, 8 and 0 respectively. Calculate Digit Verification of CAS Registry Number 4512-80: (6*4)+(5*5)+(4*1)+(3*2)+(2*8)+(1*0)=75 75 % 10 = 5 So 4512-80-5 is a valid CAS Registry Number.