79-97-0

Basic information

• Product Name: 2,2-Bis(4-hydroxy-3-methylphenyl)propane
• Synonyms: 2 2-BIS(4-HYDROXY-3-METHYLPHENYL)PROPAN&;2,2-BIS(M-METHYL-PARA-HYDROXYPHENYL)PROPANE;(2,2-BIS(META-METHYL-PARA-HYDROXYPHENYL)PROPANE);2,2'-Dimethylbisphenol A;2,2-Bis(4-hydroxy-3-methylphenyl)propanone;2,2-Bis(4-4hydroxy-3-methylphenyl)prpane;2,2-Bis(4-hydroxy-3-methylphenyl)propane,4,4′-Isopropylidenedi-o-cresol;4,4' -(1-Methyl-ethylidene)bis[2- Methyl phenol] (Bisphenol C )
• CAS NO: 79-97-0
• Molecular Formula: C₁₇H₂₀O₂
• Molecular Weight: 256.34
• EINECS: 201-240-0
• Product Categories: PHARMACEUTICAL INTERMEDIATES;Phenoles and thiophenoles;Bisphenol A type Compounds (for High-Performance Polymer Research);Color Former & Related Compounds;Developer;Functional Materials;Reagent for High-Performance Polymer Research
• Mol File: 79-97-0.mol
• Article Data: 23

Chemical Properties

• Melting Point: 138-140 °C(lit.)
• Boiling Point: 238-240 °C12 mm Hg(lit.)
• Flash Point: 190.6 °C
• Appearance: white crystalline powder
• Density: 1.0421 (rough estimate)
• Vapor Pressure: 0Pa at 25℃
• Refractive Index: 1.5000 (estimate)
• Solubility: almost transparency in Methanol
• PKA: 10.45±0.10(Predicted)
• Water Solubility: 22mg/L at 20℃
• CAS DataBase Reference: 2,2-Bis(4-hydroxy-3-methylphenyl)propane(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2-Bis(4-hydroxy-3-methylphenyl)propane(79-97-0)
• EPA Substance Registry System: 2,2-Bis(4-hydroxy-3-methylphenyl)propane(79-97-0)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• RTECS: GP1750000
• Hazardous Substances Data: 79-97-0(Hazardous Substances Data)

Usage

Chemical Properties

Powder or crystalline or crystalline powder or chunks

Uses

Used as a color-developer in thermosensitive recording materials.

Preparation

The preparation of?2,2-Bis(4-hydroxy-3-methylphenyl)propane is as follows:In a full-jacket type 1 L separable flask equipped with a thermometer, a stirrer, and a 100 mL dropping funnel, 26.1 g (0.4 mol) of isopropyl alcohol was added under a nitrogen atmosphere, and then 58.3 g (0.5 mol) of 90% by weight sulfuric acid was slowly added thereto. Thereafter, 54.5 g of toluene, 191.5 g (1.8 mol) of ortho-cresol, and 5.5 g (0.03 mol) of dodecanethiol were added thereto, followed by setting the temperature in the separable flask to 40° C. In the dropping funnel, 42.5 g (0.7 mol) of acetone was placed, and it was slowly fed dropwise to the separable flask for 30 minutes. After completion of the dropwise addition of acetone, the reaction was allowed to proceed at 40° C. for 2 hours. After completion of the reaction, 100.0 g of toluene and 100.0 g of demineralized water were fed, and the temperature was increased to 80° C. After the temperature reached 80° C., the reaction liquid was left to stand to confirm that the precipitates generated during the reaction were dissolved into the organic phase and the aqueous phase. This was followed by extraction of the aqueous phase in the lower layer. Thereafter, saturated sodium hydrogen carbonate solution was added to the obtained organic phase to allow neutralization, followed by confirming that the pH of the aqueous phase in the lower layer, became not less than 9. After extraction of the aqueous phase in the lower layer, demineralized water was added to the obtained organic phase, and the resulting mixture was stirred for 10 minutes. Thereafter, the mixture was left to stand, and the aqueous phase was extracted. Part of the obtained organic phase was removed, and subjected to high-performance liquid chromatography to analyze the amount of bisphenol C produced. As a result, the reaction yield in terms of acetone was found to be 84 mol %.

Flammability and Explosibility

Notclassified

InChI:InChI=1/C19H24O2/c1-12(2)19(5,15-6-8-17(20)13(3)10-15)16-7-9-18(21)14(4)11-16/h6-12,20-21H,1-5H3

Upstream product

• 108-22-5 Isopropenyl acetate 
• 95-48-7 ortho-cresol 
• 463-49-0 1,2-propanediene 
• 67-64-1 acetone 
• 7647-01-0 hydrogenchloride 
• 3233-56-5 o-cresol sulfate 
• 67-56-1 methanol 

Downstream Products

• 124141-44-2 2,2-bis-(4-hydroxy-3-methyl-5-pyrrolidinomethyl-phenyl)-propane 
• 33552-65-7 2,2'-dimethyl-6,6'-bis-piperidin-1-ylmethyl-4,4'-(1-methyl-ethane-1,1-diyl)-bis-phenol 
• 120499-28-7 2,2'-dimethyl-6,6'-bis-morpholinomethyl-4,4'-isopropylidene-di-phenol 
• 583-59-5 2-Methylcyclohexanol 
• 1490-05-7 4-isopropyl-2-methylcyclohexanol 
• 69154-52-5 4,4'-(propane-2,2-diyl)bis(2-bromo-6-methylphenol) 
• 861372-32-9 2-bromo-6-methyl-4-(α,β,β,β',β'-pentabromo-isopropyl)-phenol 
• 62268-99-9 2,2'-dimethyl-6,6'-dinitro-4,4'-isopropylidene-di-phenol 
• 1740-97-2 2-methyl-4-isopropylphenol 
• 95-48-7 ortho-cresol 
• 64-17-5 ethanol 
• 121759-66-8 2,2'-bis-diethylaminomethyl-6,6'-dimethyl-4,4'-isopropylidene-di-phenol 
• 576-55-6 tetrabromo-o-cresol 
• 67081-42-9 4,5,6-tribromo-2-methylphenol 

Relevant articles and documents

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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.

BISPHENOL PRODUCTION METHOD AND POLYCARBONATE RESIN PRODUCTION METHOD

To provide a bisphenol production method which suppresses an increase in a liquid amount at the time of end of a bisphenol production reaction and side reaction such as decomposition of bisphenol, and has good efficiency.SOLUTION: A bisphenol production method includes a first step of condensing ketone or aldehyde and aromatic alcohol in an acid catalyst to obtain a reaction liquid containing bisphenol, and a second step of mixing the reaction liquid and a first basic aqueous liquid, then phase-separating the mixture into a first organic phase containing bisphenol and a first aqueous phase, and removing the first aqueous phase to obtain the first organic phase, in which in the second step, acid concentration of the first aqueous phase is 0.1 millimoles-sodium hydroxide/g or more and less than 9.2 millimoles-sodium hydroxide/g.SELECTED DRAWING: None