Bis-<4-hydroxy-phenyl>-essigsaeure-<4-hydroxy-benzylidenhydrazid>, also known as Bis(4-hydroxyphenyl)-essigsaeure-(4-hydroxy-benzylidenhydrazid), is a complex organic compound with the chemical formula C17H16N2O4. It is a derivative of hydrazide, featuring two 4-hydroxyphenyl groups and a 4-hydroxybenzylidene moiety. Bis-<4-hydroxy-phenyl>-essigsaeure-<4-hydroxy-benzylidenhydrazid> is characterized by its conjugated system and hydroxyl groups, which contribute to its chemical reactivity and potential applications in various fields, such as pharmaceuticals and materials science. The compound's structure allows for the formation of hydrogen bonds and π-π interactions, which can influence its physical and chemical properties.
The CAS Registry Mumber 1667-88-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,6 and 7 respectively; the second part has 2 digits, 8 and 8 respectively. Calculate Digit Verification of CAS Registry Number 1667-88: (6*1)+(5*6)+(4*6)+(3*7)+(2*8)+(1*8)=105 105 % 10 = 5 So 1667-88-5 is a valid CAS Registry Number.