88938-12-9

Basic information

• Product Name: Biscresolfluorene
• Synonyms: 4,4'-(9H-Fluorene-9,9-diyl)bis(2-Methylphenol);4,4’-(9H-fluoren-9-ylidene)bis[2-methyl-Phenol;Biscresolfluorene;4,4'-(9-FLUORENYLIDENE)DI(O-CRESOL);4,4'-(9-Fluorenylidene)-di-o-cresoll-9,9-bis(3-methyl-4-hydroxyphenyl)fluorene;9,9-BIS(4-HYDROXY-3-METHYLPHENYL)FLUORENE;BISCRESOLFLUORENE 9,9-BIS(3-METHYL-4-HYDROXYPHENYL)FLUORENE;4-[9-(4-hydroxy-3-methylphenyl)fluoren-9-yl]-2-methylphenol
• CAS NO: 88938-12-9
• Molecular Formula: C₂₇H₂₂O₂
• Molecular Weight: 378.46
• Product Categories: Fluorenes;Fluorenes & Fluorenones;Fluorenes, etc. (reagent for high-performance polymer research);Functional Materials;Reagent for High-Performance Polymer Research
• Mol File: 88938-12-9.mol
• Article Data: 6

Chemical Properties

• Melting Point: 218-219°C
• Boiling Point: 533.4 °C at 760 mmHg
• Flash Point: 238 °C
• Appearance: /
• Density: 1.242 g/cm³
• Storage Temp.: Sealed in dry,Room Temperature
• PKA: 9.97±0.35(Predicted)
• Water Solubility: Insoluble in water
• CAS DataBase Reference: Biscresolfluorene(CAS DataBase Reference)
• NIST Chemistry Reference: Biscresolfluorene(88938-12-9)
• EPA Substance Registry System: Biscresolfluorene(88938-12-9)

Safety Data

• Hazard Codes: Xi
• Statements: 37
• Safety Statements: 26-36
• Hazardous Substances Data: 88938-12-9(Hazardous Substances Data)

Usage

General Description

Biscresolfluorene is a chemical compound with the molecular formula C20H14. It is a polycyclic aromatic hydrocarbon (PAH) that is commonly found in coal tar and other combustion products. Biscresolfluorene is a known environmental pollutant and potential carcinogen due to its ability to bind to DNA and cause mutations. It is also a suspected endocrine disruptor and has been linked to adverse effects on the reproductive and developmental systems. Due to its potential health hazards, there is ongoing research and regulatory efforts to monitor and reduce the presence of biscresolfluorene in the environment.

Upstream product

• 486-25-9 9-fluorenone 
• 95-48-7 ortho-cresol 
• 107-96-0 3-mercaptopropionic acid 

Downstream Products

• 156326-34-0 9,9-bis(4-(2-hydroxyethoxy)-3-methylphenyl)fluorene 

Relevant articles and documents

BISPHENOL COMPOSITION CONTAINING AROMATIC ALCOHOL SULFONATE AND METHOD FOR PRODUCING SAME, POLYCARBONATE RESIN AND METHOD FOR PRODUCING SAME, AND BISPHENOL PRODUCTION METHOD

A bisphenol composition including a specific amount of aromatic alcohol sulfonate, and a simple method of producing it are provided. Also provided is a method of producing a polycarbonate resin in which, by using the bisphenol composition including a specific amount of aromatic alcohol sulfonate, melt polymerization reaction can be efficiently allowed to proceed to produce a polycarbonate resin having an excellent color tone. A bisphenol composition including an aromatic alcohol sulfonate at not less than 0.1 ppb by mass with respect to a bisphenol. A method of producing a bisphenol composition, including reacting a ketone or an aldehyde with an aromatic alcohol in the presence of sulfuric acid to produce a bisphenol composition. A method of producing a polycarbonate resin, including producing a polycarbonate resin using the bisphenol composition. A polycarbonate resin including a specific amount of aromatic alcohol sulfonate.

(METH)ACRYLIC RESIN COMPOSITION, FILM, POLARIZING PLATE PROTECTIVE FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE

There is provided a (meth)acrylic resin composition, containing a (meth)acrylic resin; a compound denoted by General Formula (1) described below; and a specific compound: wherein R1 to R8 each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, or a hydrocarbon group having 1 to 6 carbon atoms, R11 and R12 each independently represent a hydrogen atom, a halogen atom, or a hydrocarbon group having 1 to 12 carbon atoms, m and n each independently represent an integer of 0 to 4, in a case where m and n represent an integer of greater than or equal to 2, a plurality of R11's and R12's may be identical to each other or different from each other, at least two R11's, at least two R12's, or R11 and R12 may form a ring by being linked to each other.

PROCESS FOR PRODUCING FLUORENE DERIVATIVE

Fluorenone and a phenolic compound (e.g., a 2-C1-4alkylphenol) is subjected to a condensation reaction in coexistence with a thiol compound and a hydrochloric acid aqueous solution to produce a fluorene derivative [e.g., 9,9-bis(C1-4alkylhydroxyphenyl)fluorene]. The proportion (weight ratio) of fluorenone relative to the thiol compound [fluorenone/the thiol compound] is about 1/0.01 to 1/0.5, and the proportion (weight ratio) of the thiol compound relative to hydrochloric acid (HCl) in the hydrochloric acid aqueous solution [the thiol compound/hydrochloric acid] is about 1/0.1 to 1/3. As the thiol compound, a mercaptocarboxylic acid (β-mercaptopropionic acid) may be used. According to the method, a highly purified fluorene derivative excellent in transparency can be obtained inexpensively and simply without using a hydrogen chloride gas having handling difficulty.