2,2-Bis(3-amino-4-hydroxylphenyl)propane (BAP) CAS 1220-78-6

Name: 2,2-Bis(3-amino-4-hydroxylphenyl)propane (BAP) CAS 1220-78-6
Brand: Aure Chemical
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Synonyms: BHAPP; 4,4'-(Propane-2,2-diyl)bis(2-aminophenol); 4,4'-Isopropylidenebis(2-aminophenol); Phenol, 4,4'-(1-methylethylidene)bis[2-amino-; 2,2-Bis(3-amino-4-hydroxyphenyl)propane; 2-amino-4-[2-(3-amino-4-hydroxyphenyl)propan-2-yl]phenol

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Product Details

BAP CAS 1220-78-6 for Hydroxyl-Containing Polyimide and Specialty Polymer Synthesis

2,2-Bis(3-amino-4-hydroxyphenyl)propane, commonly known as BAP, is a hydroxyl-containing aromatic diamine monomer used as a structural building block in high-performance polyimide, polyamide, polybenzoxazole-related and specialty polymer synthesis. Its aromatic backbone, propane-centered structure and dual amine-hydroxyl functionality make BAP relevant to polymer systems where thermal resistance, molecular rigidity, polarity, reactive modification and interfacial compatibility need to be balanced.

BAP belongs to the broader category of polyimide diamine monomers and is also part of Aure Chemical’s polyimide diamine monomers supply portfolio. It is often considered in hydroxyl-containing, heat-resistant, membrane-related and specialty functional polymer material development, depending on the paired dianhydride, formulation and processing conditions.

Basic Information of BAP

Product Name	2,2-Bis(3-amino-4-hydroxyphenyl)propane
Synonym	4,4'-Isopropylidenebis(2-aminophenol)
Abbreviation	BAP
CAS Number	1220-78-6
Product Type	Hydroxyl-containing aromatic diamine monomer
Molecular Formula	C15H18N2O2
Molecular Weight	258.32 g/mol
Appearance	White to yellow or orange powder or crystal
Purity	≥ 99.5%; batch data should be confirmed when quality documentation is available
Main Application	Hydroxyl-containing, heat-resistant and specialty functional polymer synthesis
Package	1 kg/bottle, 20 kg/drum, or customized packaging
Documents	SDS, TDS and available product information upon request
Storage	Keep sealed, dry, and away from moisture
Molecular Structure

Key Features in Polymer Design

Hydroxyl-containing aromatic diamine structure, relevant to specialty polyimide diamine monomers and reactive polymer building blocks.
Dual amine and hydroxyl functionality may support polyimide, polyamide, polybenzoxazole-related or thermally rearranged polymer design depending on the selected polymer route.
Aromatic backbone may contribute to molecular rigidity, thermal resistance and mechanical performance in selected high-performance polymer systems.
Hydroxyl groups may influence polarity, hydrogen bonding, interfacial compatibility and post-reaction behavior depending on formulation and processing conditions.
Final material properties depend on monomer purity, co-monomer selection, solvent system, reaction conditions and polymer processing method.

Pairing BAP with Dianhydride Monomers

In polyimide synthesis, BAP may be evaluated with selected polyimide dianhydride monomers to design hydroxyl-containing, heat-resistant and specialty functional PI systems. Rigid aromatic dianhydrides such as BPDA CAS 2420-87-3 or BTDA CAS 2421-28-5 may support thermal resistance and dimensional stability.

Fluorinated dianhydrides such as 6FDA CAS 1107-00-2 may be considered when free volume, gas transport behavior, dielectric behavior or optical properties are part of the target polymer design. Ether-containing dianhydrides such as ODPA CAS 1823-59-2 may help adjust processability and film-forming behavior.

Application Context of BAP in Specialty Polymer Systems

BAP is typically used as a multifunctional monomer rather than a finished application material. It is commonly discussed in hydroxyl-containing polyimides, polybenzoxazole-related materials, membrane research and specialty functional polymer systems, where aromatic rigidity, hydroxyl functionality and reactive modification can influence polymer performance.

High-temperature polyimide applications – heat-resistant polymer environments and structurally demanding material systems.
Gas separation and membrane research – hydroxyl-containing polyimide-derived materials may be evaluated where chain packing, free volume and gas transport behavior are important design factors.
Electronics and semiconductor polyimide applications – dielectric, insulation and thermally stable polymer material requirements.
Polybenzoxazole-related polymer systems – BAP may be evaluated in research involving o-hydroxy diamine structures and thermally rearranged polymer concepts.
Specialty functional polymer materials – hydroxyl-containing diamine selection for advanced polymer research and interface-related formulation design.

SDS, TDS and Technical Documentation

Aure Chemical can provide SDS, TDS, typical product information and packaging details for BAP CAS 1220-78-6 upon request. Since no batch COA has been provided for this page, final purity, appearance and batch-specific quality data should be confirmed when available before order confirmation.

Please share the required purity, target specification, quantity, destination country or port, preferred packaging method and required documents so we can review availability, documentation support and export packing options.

Contact Aure Chemical for BAP documentation and quotation support.

Packaging, Logistics & Compliance Capabilities

Aure Chemical provides flexible packaging solutions, compliant logistics arrangements, and controlled storage practices to support laboratory-scale, pilot-scale, and commercial-scale global supply.