9-p-Tolyl-9',10'-dehydro-anthracen, also known as 9-(4-methylphenyl)-9,10-dihydroanthracene, is an organic compound with the molecular formula C21H18. It is a derivative of anthracene, a tricyclic aromatic hydrocarbon, and features a methyl group attached to the phenyl ring. 9-p-Tolyl-9',10'-dehydro-anthracen is characterized by its planar structure and conjugated π-electron system, which contributes to its stability and electronic properties. It is often used in the synthesis of various organic compounds and materials due to its unique structure and reactivity.
The CAS Registry Mumber 3724-40-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,2 and 4 respectively; the second part has 2 digits, 4 and 0 respectively. Calculate Digit Verification of CAS Registry Number 3724-40: (6*3)+(5*7)+(4*2)+(3*4)+(2*4)+(1*0)=81 81 % 10 = 1 So 3724-40-1 is a valid CAS Registry Number.