Description

1,3-Propanediol bis(4-aminobenzoate) (CAS No. 57609-64-0) is a high-purity, crystalline organic compound widely utilized in advanced polymer synthesis and specialty chemical applications. With the molecular formula C₁₇H₁₈N₂O₄, this di-functional aromatic amine is an essential curing agent for epoxy resins, polyurethanes, and other thermosetting polymers, offering excellent mechanical and thermal stability. Its dual-reactive amino groups enable efficient crosslinking, enhancing durability, chemical resistance, and adhesion properties in coatings, adhesives, and composite materials. Available in powder or granular form (98% purity), it is ideal for research, industrial R&D, and high-performance material formulations. Store in a cool, dry place, protected from light and moisture to ensure long-term stability.

Properties

• CAS Number: 57609-64-0
• Complexity: 350
• IUPAC Name: 3-(4-aminobenzoyl)oxypropyl 4-aminobenzoate
• InChI: InChI=1S/C17H18N2O4/c18-14-6-2-12(3-7-14)16(20)22-10-1-11-23-17(21)13-4-8-15(19)9-5-13/h2-9H,1,10-11,18-19H2
• InChI Key: YPACMOORZSDQDQ-UHFFFAOYSA-N
• Exact Mass: 314.12665706
• Molecular Formula: C17H18N2O4
• Molecular Weight: 314.34
• SMILES: C1=CC(=CC=C1C(=O)OCCCOC(=O)C2=CC=C(C=C2)N)N
• Topological: 105
• Monoisotopic Mass: 314.12665706
• Physical Description: Dry Powder
• Synonyms: 57609-64-0, Propane-1,3-diyl bis(4-aminobenzoate), 1,3-Propanediol bis(4-aminobenzoate), Polacure 740M, 1,3-Propanediol, bis(4-aminobenzoate), CCRIS 3552, EINECS 260-847-9, 1,3-Propanediol, di(p-aminobenzoate), Trimethylene glycol di(p-aminobenzoate), 8860R9ORQR, DTXSID3044960, CUAMINE CUA 4, 1,3-Propanediol, di-p-aminobenzoate, VERSALINK 740, POLACURE 740, VIBRACURE A 157, CUA 4, 1,3-Propanediol, 1,3-bis(4-aminobenzoate), DTXCID1024960, 1,3-propanediol di-p-aminobenzoate, 1,3-propylene bis(4-aminobenzoate), TRIMETHYLENE DI-P-AMINOBENZOATE, 1,3-Propanediol, bis[4-aminobenzoate], 1,3-PROPANEDIYL BIS(P-AMINOBENZOATE), TRIMETHYLENE GLYCOL BIS(4-AMINOBENZOATE), PROPYL GLYCOL DI(4,4′-DIAMINO) BENZOATE, 1,3Propanediol, dipaminobenzoate, 1,3Propanediol, di(paminobenzoate), Propane1,3diyl bis(4aminobenzoate), 1,3Propanediol, bis(4aminobenzoate), Trimethylene glycol di(paminobenzoate), trimethyleneglycol di-4-(aminobenzoate), 1,3Propanediol, 1,3bis(4aminobenzoate), 260-847-9, Trimethylene Bis(4-aminobenzoate), 3-(4-aminobenzoyl)oxypropyl 4-aminobenzoate, 3-(4-aminobenzoyloxy)propyl 4-aminobenzoate, UNII-8860R9ORQR, MFCD00129765, SCHEMBL48450, CHEMBL3183528, 1,3-Bis(4-aminobenzoyloxy)propane, Tox21_301701, 1,3-propanediol bis(p-aminobenzoate), 1,3-propanediol di-(p-aminobenzoate), AKOS015903107, Propane-1,3-diylbis(4-aminobenzoate), Bis(p-aminobenzoic acid)trimethylene este, NCGC00256115-01, AC-18377, AS-63219, CAS-57609-64-0, CS-0197299, NS00033756, ST51038348, T1646, D92496, 3-(4-aminophenylcarbonyloxy)propyl 4-aminobenzoate, A832284, 3-(4-aminophenyl)carbonyloxypropyl 4-azanylbenzoate, Q27269893, 1,3-Propanediol bis(4-aminobenzoate), powder (Granular), 98%, 4-aminobenzoic acid 3-[(4-aminophenyl)-oxomethoxy]propyl ester

1,3-Propanediol bis(4-aminobenzoate) is primarily used as a curing agent for epoxy resins in aerospace, automotive, and electronics coatings due to its high thermal resistance. It also serves as a chain extender in polyurethane elastomers, improving tensile strength and flexibility. Researchers employ it in photopolymerization studies and specialty adhesives for its fast reactivity and low volatility.

Safety and Hazards

GHS Hazard Statements

• H315 (14%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (42.6%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statements

• P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, and P362+P364

Hazard Classes and Categories

• Skin Irrit. 2 (14%)
• Eye Irrit. 2 (42.6%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.