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4-Carboxyphenylboronic acid

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4-(Dihydroxyboronyl)benzoic acid, 4-(Dihydroxyboryl)benzoic acid, 4-Boronobenzoic acid, 4-Carboxybenzeneboronic acid, 4-Carboxylphenylboronic acid, 4-Hydroxycarbonylphenyl boronic acid, NSC 221170, p-Boronobenzoic acid, p-Carboxybenzeneboronic acid, p-Carboxyphenylboronic acid
Linear Formula:
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:
EC Index Number:

Quality Level


220 °C (dec.) (lit.)

SMILES string




InChI key


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Reactant involved in:
  • Condensation reactions with stabilizer chains at the surface of polystyrene latex
  • Suzuki coupling reactions
  • Esterification
  • Derivatization of polyvinylamine
  • Synthesis of isotopically labeled mercury
  • Functionalization of poly-SiNW for detection of dopamine
Reagent used for
  • Suzuki-Miyaura cross-coupling
  • Induction of pH sensitivity on fluorescence lifetime of quantum dots by NIR fluorescent dyes
  • Bio-supported palladium nanoparticles as phosphine-free catalyst for Suzuki reaction in water
  • Chan-Lam-type Copper (Cu)-catalyzed S-arylation with aryl boronic acids at room temperature

Reagent used in Preparation of
  • Isoquinolones via regioselective Suzuki-Miyaura cross-coupling and tandem palladium-catalyzed intramolecular aminocarbonylation and annulation
  • Amprenavir-based P1-substituted bi-aryl derivatives as ultra-potent HIV-1 protease inhibitors
  • Phenols via visible-light initiated aerobic oxidative hydroxylation of arylboronic acids using air as oxidant catalyzed by Ruthenium (Ru)-complex
  • Glucose sensitive boronic acid-bearing block copolymers
  • Trisulfonated calixarene upper-rim sulfonamido derivatives and their complexation with the trimethyllysine epigenetic mark

Storage Class Code

11 - Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Hai Wang et al.
Journal of colloid and interface science, 590, 103-113 (2021-02-02)
The self-healing mechanism and bioelectrochemical interface properties of supramolecular gels have been rarely explored. In this context, we propose a constitutive "fibril-reorganization" model to reveal the self-healing mechanism of a series of core-shell structured guanosine-borate (GB) hydrogels and emphasize that
Xiu Ye et al.
Nanomaterials (Basel, Switzerland), 9(5) (2019-05-10)
Aggregation-induced emission (AIE) active cellulose nanocrystals (TPE-CNCs) were synthesized by attaching tetraphenylethylene (TPE) to cellulose nanocrystals (CNCs). The structure and morphology of TPE-CNCs were characterized by FT-IR, XRD, ζ-potential measurements, elemental analysis, TEM, atomic force microscopy (AFM), and dynamic laser
Jinqiang Wang et al.
Science advances, 5(7), eaaw4357-eaaw4357 (2019-07-17)
Glucose-responsive insulin delivery systems with robust responsiveness that has been validated in animal models, especially in large animal models, remain elusive. Here, we exploit a new strategy to form a micro-sized complex between a charge-switchable polymer with a glucose-sensing moiety
Muthusamy Selvaraj et al.
Analytica chimica acta, 1066, 112-120 (2019-04-28)
A new boronic acid derivative functionalized with a 4-(3-(4-(4,5-diphenyl-1H-imidazole-2-yl)phenyl)-1,2,4-oxadiazol-5-yl)phenyl (IOP) moiety was synthesized for use as a sequential "on-off-on"-type relay fluorescence probe for Fe3+ ions and F- ions with high selectivity and sensitivity under physiological conditions. The introduction of Fe3+
Kentaro Yoshida et al.
Polymers, 12(8) (2020-08-23)
Phenylboronic acid-bearing polyamidoamine dendrimer (PBA-PAMAM)/poly(vinyl alcohol) (PVA) multilayer films were prepared through the layer-by-layer (LbL) deposition of PBA-PAMAM solution and PVA solution. PBA-PAMAM/PVA films were constructed successfully through the formation of boronate ester bonds between the boronic acid moiety in

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