790-83-0

Basic information

• Product Name: DIPHENYLMETHANE-4,4'-DICARBOXYLIC ACID
• Synonyms: DIPHENYLMETHANE-4,4'-DICARBOXYLIC ACID;Benzoic acid, 4,4'-Methylenebis-;4,4'-Methylenedibenzoic acid;4-[(4-Carboxyphenyl)methyl]benzoic acid;Bis(4-carboxyphenyl)methane;Bis(p-carboxyphenyl)methane;Diphenylmethan-4,4'-dicarboxylic acid
• CAS NO: 790-83-0
• Molecular Formula: C₁₅H₁₂O₄
• Molecular Weight: 256.25
• Product Categories: Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts
• Mol File: 790-83-0.mol

Chemical Properties

• Melting Point: 346 °C
• Boiling Point: 485.2 °C at 760 mmHg
• Flash Point: 261.3 °C
• Appearance: /
• Density: 1.321
• Storage Temp.: Sealed in dry,Room Temperature
• PKA: 3.95±0.10(Predicted)
• CAS DataBase Reference: DIPHENYLMETHANE-4,4'-DICARBOXYLIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: DIPHENYLMETHANE-4,4'-DICARBOXYLIC ACID(790-83-0)
• EPA Substance Registry System: DIPHENYLMETHANE-4,4'-DICARBOXYLIC ACID(790-83-0)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• HazardClass: IRRITANT
• Hazardous Substances Data: 790-83-0(Hazardous Substances Data)

Usage

Uses

Used in Automotive Industry:
Diphenylmethane-4,4'-dicarboxylic acid is used as a raw material for manufacturing high-performance polymers and resins that are employed in the production of automotive parts. Its heat resistance, dimensional stability, and high mechanical strength contribute to the durability and performance of these components.
Used in Electrical and Electronics Industry:
This chemical is used as a component in the production of polymers and resins for electrical and electronic applications. Its properties, such as heat resistance and dimensional stability, are essential for the reliability and longevity of electrical and electronic devices.
Used in General Industrial Applications:
Diphenylmethane-4,4'-dicarboxylic acid is used as a key ingredient in the synthesis of various high-performance polymers and resins that are utilized in a wide range of industrial applications. Its beneficial properties, including heat resistance and high mechanical strength, make it suitable for use in a variety of products and materials.
Safety Considerations:

Upstream product

• 67-37-8 4,4'-methylenedibenzaldehyde 
• 101-77-9 4,4'-diamino diphenyl methane 
• 335248-43-6 bis[2-(trimethylsilyl)ethyl] 4,4'-methanediyl-dibenzoate 
• 7446-70-0 aluminium trichloride 
• 79-37-8 oxalyl dichloride 
• 101-81-5 Diphenylmethane 
• 42107-14-2 2-Chloro-3-{4-[4-(2-chloro-2-cyano-ethyl)-benzyl]-phenyl}-propionitrile 
• 10466-37-2 4,4'-dicyanodiphenylmethane 
• 790-82-9 bis(4-acetylphenyl)methane 

Downstream Products

• 3268-26-6 bis<4-(chlorocarbonyl)phenyl>methane 
• 861531-58-0 3,3'-dinitro-4,4'-methanediyl-di-benzoic acid 
• 1092-70-2 methyl 4-[(4-methoxycarbonylphenyl)methyl]benzoate 
• 18190-51-7 bis<4-(ethoxycarbonyl)phenyl>methane 
• 67-37-8 4,4'-methylenedibenzaldehyde 
• 1176170-52-7 bis(perfluorophenyl) 4,4'-methylenedibenzoate 
• 861550-28-9 3,3'-dinitro-4,4'-methanediyl-di-benzoic acid diethyl ester 
• 335248-45-8 (1R,3S,4R,6S,7R,9R,10S,12R,13S,15R)-15-[(t-butyldimethylsilyloxy)methyl]-1-quinquecyclopropanemethyl 2-(trimethylsilyl)ethyl 4,4'-methanediyl-dibenzoate 
• 335248-44-7 hydrogen 2-(trimethylsilyl)ethyl 4,4'-methanediyl-dibenzoate 

Relevant articles and documents

DENTAL CURABLE COMPOSITION

PROBLEM TO BE SOLVED: To provide a dental curable composition that comprises a polymerizable monomer, a cured product of which has excellent mechanical strength, and which has low viscosity and excellent handleability even in room temperature environment, and further has excellent operability. SOLUTION: A dental curable composition comprises (A) polymerizable monomer represented by formula (1), (B) polymerization initiator, and (C) organic-inorganic composite filler, where X is a divalent group; Ar1 and Ar2 each are an aromatic; L1 and L2 each are a hydrocarbon with the main chain consisting of 2-60 atoms; R1 and R2 independently represent H or methyl; m1, m2, n1 and n2 independently an integer of 1-3]. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPO&INPIT

DENTAL CURABLE COMPOSITION

PROBLEM TO BE SOLVED: To provide a dental curable composition that promptly completes polymerization upon light irradiation. SOLUTION: A dental curable composition comprises: (A) a polymerizable monomer represented by general formula (1); and (B) a photoinitiator containing B1) an α-diketone compound, B2) a photoacid generator and B3) an aromatic amine compound. [X is -O-; Ar1 and Ar2 are divalent to tetravalent aromatic groups; L1 and L2 are divalent to tetravalent C2-60 hydrocarbon groups; R1 and R2 are hydrogen or methyl groups; and m1, m2, n1 and n2 are integers from 1 to 3.] SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT

Dental adhesive composition

PROBLEM TO BE SOLVED: To provide a dental adhesive composition which does not have lower affinity to a tooth or the like and has high adhesive strength. SOLUTION: The present invention relates to the composition comprising a polymerizable monomer represented by general formula (1), and an acid group-containing polymerizable monomer. [X is a divalent group; Ar1 and Ar2 are each independently a divalent to tetravalent aromatic group; L1 and L2 are each independently a divalent to tetravalent hydrocarbon group having 2 to 60 atoms in the main chain; R1 and R2 are each independently H or methyl; or, m1, m2, n1 and n2 are each independently an integer of 1 to 3] SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT

Synthesis and characterization of coronanes: Multicyclopropane-fused macrocyclic arrays

Stepwise macrocyclization of the all syn-trans-1,15-quinquecyclopropanedimethanol (4) with isoand terephthaloyl chlorides and 4,4′-methanediyl-dibenzoic acid (28) gave the corresponding coronanes 22, 23, and 32. The same protocol was used with all syn-trans-1,21-septecyclopropanedimethanol (5) and 2,3-naphthalenedicarboxylic acid to obtain the macrolide 27. Direct macrocyclization of diol 4 and 1,10-phenanthroline-2,9-dicarbonyl chloride (33) and 2,2′-bipyridine-4,4′-dicarbonyl chloride (35) gave the coronanes 34 and 36, respectively. Ring closing metathesis (RCM) of the diene 42 using Cl2(Cy3P)2Ru=CHPh (48) (Grubbs's catalyst) gave the macrocyclic lactone 45. The structures of coronanes 22, 23, 32, 34, 36, and 45 were confirmed by X-ray crystallographic studies which showed the cyclopropyl chain to adopt very differing conformations throughout the series. Several of the macrocycles have significant free pathways through their ring centers, and in the case of compound 34 there is a water molecule hydrogen bonded within the ring. This latter compound has the potential to act as a chiral ligand to metal centers.