The present invention relates to novel resorc[4]arenes, such as pre-organized structure linkers for the development of high performance electrochemical biosensors.

Disclosed are a phenolic hydroxyl group-containing resin which has excellent alkali developing properties and makes it possible to exhibit high heat resistance in a cured product obtained therefrom, a production method therefor, a photosensitive composition, a resist material, a coating film, a curable composition and a cured product thereof, and a resist underlayer film.

A phenolic hydroxyl group-containing resin, including a compound (A) having a molecular structure represented by the following Structural Formula (1).

##STR00001##

(In the formula, R.sup.1 represents an alkyl group, an alkoxy group, or an aryl group, R.sup.2 represents a hydrogen atom, an alkyl group, or an aryl group, m is an integer of 1 to 3, and n is an integer of 2 to 15. In the case where m is 2 or more, plural R.sup.1's may be the same as or different from each other.)

The present invention provides a compound containing a modified phenolic hydroxy group, which has a molecular structure represented by General Formula (1) except for a molecular structure represented by the following General Formula (2).

##STR00001##

In the formulas, R.sup.1 represents a tertiary alkyl group, an alkoxyalkyl group, an aryloxyalkyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a cyclic aliphatic hydrocarbon group containing a hetero atom, or a trialkylsilyl group; R.sup.2 represents a hydrogen atom, an alkyl group, an alkoxy group, an aryl group which may have a substituent, an aralkyl group which may have a substituent, or a halogen atom; and R.sup.3 represents an alkyl group which may have a substituent or an aryl group which may have a substituent.

The present disclosure discloses tribenzotriquinacene with an axial aryl group and a method for preparing the same. The triphenyltripentacene has a structure shown in formula (1):

##STR00001##

R.sub.1 and R.sub.2 are independently hydrogen, a C1-C12 alkyl group, a C1-C12 alkoxy group, a C1-C12 fluoroalkyl group, a C1-C12 fluorine-containing alkoxy group, a C1-C12 ester group, a halogen group, a nitro group, an amine group, a cyano group, or a hydroxy group.

Cationic pillar[n]arenes, e.g., positively charged poly-ammonium, poly-phosphonium and poly-imidazolium pillar[5-6]arene derivatives are capable of inhibiting or preventing biofilm formation, and facilitating existing biofilm decomposition. A composition for inhibiting or disrupting biofilm, e.g., bacterial or fungal biofilm, formation, or reducing biofilm, can include a pharmaceutically acceptable carrier, and a cationic pillar[n]ene.