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ChemicalBook >> CAS DataBase List >>1,4-Phenylenebisboronic acid

1,4-Phenylenebisboronic acid

CAS No.
4612-26-4
Chemical Name:
1,4-Phenylenebisboronic acid
Synonyms
1,4-PHENYLENEDIBORONIC ACID;BENZENE-1,4-DIBORONIC ACID;1,4-BENZENEDIBORONIC ACID;1,4-Phenyldiboronic acid;1,4-PHENYLENEBIS(BORONIC ACID);p-Benzenediboronic acid;(4-Boronophenyl)boronic acid;NSC 25410;AKOS BRN-0002;enebisboronic acid
CBNumber:
CB3274806
Molecular Formula:
C6H8B2O4
Molecular Weight:
165.75
MDL Number:
MFCD00236018
MOL File:
4612-26-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 01:14:31
Product description Number Pack Size Price
Benzene-1,4-diboronic acid ≥95.0% 417130 5g $134
Benzene-1,4-diboronic acid ≥95.0% 417130 25g $321
1,4-Phenylenediboronic Acid (contains varying amounts of Anhydride) P1358 1g $29
1,4-Phenylenediboronic Acid (contains varying amounts of Anhydride) P1358 5g $75
1,4-Phenylenebisboronic acid FP74696 50g $181
More product size

1,4-Phenylenebisboronic acid Properties

Melting point >350 °C(lit.)
Boiling point 420.1±55.0 °C(Predicted)
Density 1.33±0.1 g/cm3(Predicted)
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility soluble in Methanol
pka 8.30±0.17(Predicted)
form liquid
color white to off-white
Water Solubility Soluble in water 2.5%.
BRN 2836921
InChI InChI=1S/C6H8B2O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4,9-12H
InChIKey BODYVHJTUHHINQ-UHFFFAOYSA-N
SMILES C1(B(O)O)=CC=C(B(O)O)C=C1
CAS DataBase Reference 4612-26-4(CAS DataBase Reference)
UNSPSC Code 12352103
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312-P501
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn,C,Xi
Risk Statements  22-36/37/38-20/21/22
Safety Statements  36-26
WGK Germany  3
Hazard Note  Corrosive
TSCA  No
HazardClass  IRRITANT
HS Code  29310095
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
NFPA 704
0
2 0

1,4-Phenylenebisboronic acid price More Price(88)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 417130 Benzene-1,4-diboronic acid ≥95.0% 4612-26-4 5g $134 2026-04-30 Buy
Sigma-Aldrich 417130 Benzene-1,4-diboronic acid ≥95.0% 4612-26-4 25g $321 2026-04-30 Buy
TCI Chemical P1358 1,4-Phenylenediboronic Acid (contains varying amounts of Anhydride) 4612-26-4 1g $29 2026-04-30 Buy
TCI Chemical P1358 1,4-Phenylenediboronic Acid (contains varying amounts of Anhydride) 4612-26-4 5g $75 2026-04-30 Buy
Biosynth FP74696 1,4-Phenylenebisboronic acid 4612-26-4 50g $181 2026-06-04 Buy
Product number Packaging Price Buy
417130 5g $134 Buy
417130 25g $321 Buy
P1358 1g $29 Buy
P1358 5g $75 Buy
FP74696 50g $181 Buy

1,4-Phenylenebisboronic acid Chemical Properties,Uses,Production

Chemical Properties

1,4-Phenylenebisboronic acid is off-white powder

Uses

Reagent used for . Externally initiated Kumada catalyst-transfer polycondensation . Suzuki-Miyaura cross-coupling reactions . Energy transfer processes in optoelectronic devices . Palladium-catalyzed sequential alkenylation and conjugate addition reactions . Scholl cyclizations

Uses

It is used for palladium-catalyzed sequential alkenylation and conjugate addition reactions, scholl cyclizations, Suzuki-Miyaura cross-coupling reactions. It is also used in the preparation of indolizine derivatives as OLEDs, in organic thin-film transistors, Fluorescence and solution-processable coordination polymers.

Uses

suzuki reaction

Synthesis

Trimethyl borate

121-43-7

1,4-Dibromobenzene

106-37-6

1,4-Phenylenebisboronic acid

4612-26-4

Under the protection of nitrogen atmosphere, 200 mL of tetrahydrofuran (THF) was added to the reaction flask and cooled to 15°C. 0 g (0.62 mmol) of magnesium and 1.0 g (0.004 mol) of iodine were slowly added followed by the dropwise addition of 300 mL of THF solution containing 68.4 g (0.29 mol) of 1,4-dibromobenzene at a controlled titration rate maintaining the reaction temperature at 30°C. The reaction was continued for 3 hours. After completion, the reaction was continued for 3 hours. After completion of the reaction, the reaction mixture was cooled to -70°C and a mixed solution consisting of trimethyl borate (78.5 mL, 0.72 mol) and 300 mL of THF was slowly added dropwise. After the dropwise addition was completed, the reaction was continued at -70°C for 1 hour, then slowly warmed to room temperature and stirred for 12 hours. To the reaction mixture was added 950 mL of 2.5 M hydrochloric acid, stirred rapidly for 15 minutes and the solid product was collected by filtration. The solid was washed 3 times with 300 mL of hexane and finally dried under vacuum to give 40.7 g of white solid 1,4-phenylenediboronic acid in 84.6% yield.

References

[1] Patent: CN103570530, 2016, B. Location in patent: Paragraph 0042; 0043

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View Lastest Price from 1,4-Phenylenebisboronic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Benzene-1,4-diboronic acid pictures 2026-07-28 Benzene-1,4-diboronic acid
4612-26-4
$27.00-191.00 25g 0.98 100kg Shanghai UCHEM Inc.
	1,4-Phenylenebisboronic acid pictures 2026-07-09 1,4-Phenylenebisboronic acid
4612-26-4
$3.00-8.00 1KG 99% Henan Fengda Chemical Co., Ltd
1,4-Phenylenebisboronic acid pictures 2025-05-12 1,4-Phenylenebisboronic acid
4612-26-4
1kg 98% 2 MTs PUSHAN INDUSTRIAL (SHAANXI) CO.,LTD

1,4-Phenylenebisboronic acid Spectrum

4-(DIHYDROXYBORYL)PHENYLBORONIC ACID AKOS BRN-0002 P-PHENYLENEDIBORONIC ACID 1,4-Phenylenebisboronic 1,4-benzeendiboronic acid 1,4-Benzenediboronicacid,96% 1,4-Phenylenediboronic Acid (contains varying amounts of Anhydride) 1,4-Benzendiboronic acid 1,4-Phenylenebisboronic acid, p-Phenylenediboronic acid, Benzene-1,4-diboronic acid Benzene-1,4-diboronic acid,98% 4-(Dihydroxyboryl)phenylboronic acid, May contain varying amounts of anhydride, 97% Benzene-1,4-diboronic acid,1,4-Phenylenebisboronic acid, p-Phenylenediboronic acid, Benzene-1,4-diboronic acid 1,4-two benzeneboric acid Benzene-1,4-diboronic acid >=95.0% 1, 4 - benzene boric acid NSC 25410 enebisboronic acid 1,4-Benzenediboronic acid, 96% white to pale cream powder Boronic acid, B,B'-1,4-phenylenebis- 1,4-Phenylenebisboronicaci 1,4-PHENYLENEBIS(BORONIC ACID) p-Benzenediboronic acid (4-Boronophenyl)boronic acid Perampanel Impurity 30 1,4-BENZENEDIBORONIC ACID 1,4-PHENYLENEDIBORONIC ACID 1,4-Phenyldiboronic acid BENZENE-1,4-DIBORONIC ACID 1,4-Phenylatedorboic acid, 4612-26-4 C6H4BOH22 C6H8B2O4 Boronic Acids and Derivatives Boronic Acids B (Classes of Boron Compounds) Organometallic Reagents Aryl B (Classes of Boron Compounds) blocks BoronicAcids Boronic acids 1
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