3,4-Coronen-dicarbonsaeure-anhydrid, also known as 3,4-Coronenedicarboxylic anhydride, is a chemical compound with the molecular formula C12H8O3. It is derived from the oxidation of coronene, a polycyclic aromatic hydrocarbon, and is characterized by the presence of two carbonyl groups connected to a coronene core. This anhydride is an important intermediate in the synthesis of various coronene-based compounds, such as coronenequinone and coronene derivatives, which have potential applications in materials science, organic electronics, and pharmaceuticals. Due to its reactive nature, it is typically handled with care in controlled laboratory settings.
The CAS Registry Mumber 4444-80-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,4 and 4 respectively; the second part has 2 digits, 8 and 0 respectively. Calculate Digit Verification of CAS Registry Number 4444-80: (6*4)+(5*4)+(4*4)+(3*4)+(2*8)+(1*0)=88 88 % 10 = 8 So 4444-80-8 is a valid CAS Registry Number.