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3,5-Dimethylphenylboronic acid

CAS No.
172975-69-8
Chemical Name:
3,5-Dimethylphenylboronic acid
Synonyms
AKOS BRN-0067;TIMTEC-BB SBB004076;RARECHEM AH PB 0186;3,5-Dimethyl benzene;3,5-Dimethylphenylbo;M-XYLENE-5-BORONIC ACID;3,5 Dimethyl Boronic Acid;3,5-dimethylphenylboronic v;3,5-Dimethylphenylboronicaci;3,5-DIMETHYLPHENYLBORONIC ACID
CBNumber:
CB6219192
Molecular Formula:
C8H11BO2
Molecular Weight:
149.98
MDL Number:
MFCD00185689
MOL File:
172975-69-8.mol
MSDS File:
SDS
Last updated:2026-05-28 03:20:30
Product description Number Pack Size Price
3,5-Dimethylphenylboronic acid ≥95.0% 480088 5g $65.2
3,5-Dimethylphenylboronic acid ≥95.0% 480088 25g $310
3,5-Dimethylphenylboronic Acid (contains varying amounts of Anhydride) D3396 5g $38
3,5-Dimethylphenylboronic Acid (contains varying amounts of Anhydride) D3396 25g $152
3,5-Dimethylphenylboronic acid FD139300 0.25kg $900
More product size

3,5-Dimethylphenylboronic acid Properties

Melting point 261-265 °C (lit.)
Boiling point 312.7±52.0 °C(Predicted)
Density 1.07±0.1 g/cm3(Predicted)
storage temp. Keep in dark place,Sealed in dry,Room Temperature
Water Solubility Slightly soluble in water
form solid
pka 8.72±0.10(Predicted)
color White to Orange to Green
BRN 7368658
InChI InChI=1S/C8H11BO2/c1-6-3-7(2)5-8(4-6)9(10)11/h3-5,10-11H,1-2H3
InChIKey DJGHSJBYKIQHIK-UHFFFAOYSA-N
SMILES B(C1=CC(C)=CC(C)=C1)(O)O
CAS DataBase Reference 172975-69-8(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  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
PPE Eyeshields, Gloves, type N95 (US)
Hazard Codes  Xn,Xi
Risk Statements  22-36/37/38
Safety Statements  37/39-26-36/37
WGK Germany  3
HazardClass  IRRITANT
HS Code  29319090
Storage Class 11 - Combustible Solids
REACH Registrations Active
NFPA 704
0
2 0

3,5-Dimethylphenylboronic acid price More Price(80)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 480088 3,5-Dimethylphenylboronic acid ≥95.0% 172975-69-8 5g $65.2 2023-06-20 Buy
Sigma-Aldrich 480088 3,5-Dimethylphenylboronic acid ≥95.0% 172975-69-8 25g $310 2023-01-07 Buy
TCI Chemical D3396 3,5-Dimethylphenylboronic Acid (contains varying amounts of Anhydride) 172975-69-8 5g $38 2026-04-30 Buy
TCI Chemical D3396 3,5-Dimethylphenylboronic Acid (contains varying amounts of Anhydride) 172975-69-8 25g $152 2026-04-30 Buy
Biosynth FD139300 3,5-Dimethylphenylboronic acid 172975-69-8 0.25kg $900 2026-06-04 Buy
Product number Packaging Price Buy
480088 5g $65.2 Buy
480088 25g $310 Buy
D3396 5g $38 Buy
D3396 25g $152 Buy
FD139300 0.25kg $900 Buy

3,5-Dimethylphenylboronic acid Chemical Properties,Uses,Production

Chemical Properties

off-white to light yellow crystalline powder

Uses

suzuki reaction

Uses

3,5-Dimethylphenylboronic Acid is a useful research intermediate for organic synthesis

Uses

3,5-Dimethylphenylboronic acid (DMPBA) can be used as:

  • A reactant in the palladium-catalyzed Suzuki coupling reactions.
  • A co-extractant in the combination with modified Aliquat 336 for the extraction of xylose, glucose, and fructose from aqueous solutions.
  • A reactant to prepare penultimate methyl ester.

Synthesis

Methanol

67-56-1

BORANE-DIISOPROPYLAMINE

55124-35-1

5-Bromo-m-xylene

556-96-7

3,5-Dimethylphenylboronic acid

172975-69-8

GENERAL PROCEDURE: A 1 M THF solution (375 μL, 375 μmol) of phenylmagnesium bromide (PhMgBr) was added dropwise to a tetrahydrofuran (THF, 4 mL) solution of diisopropylaminoborane (DIPAB, 863 mg, 7.5 mmol) and magnesium scrapings (Mg, 182 mg, 7.5 mmol) at room temperature. After 10 min of reaction, 30 mL of anhydrous THF was added, followed by 3,5-dimethylbromobenzene (5 mmol). The reaction mixture was cooled to 0 °C and quenched by slow addition of methanol (MeOH, 7 mL). After 1 h of reaction, the volatiles were removed under reduced pressure and the resulting solid was dissolved in a 1N hydrochloric acid/methanol (7:3, v/v) mixture. The reaction was continued for 1 h at room temperature, followed by the addition of ethyl acetate (AcOEt, 100 mL) for extraction. The organic phase was washed sequentially with 1N hydrochloric acid (30 mL) and saturated saline (3 x 30 mL). The organic phase was concentrated under reduced pressure to give the crude product, which was finally purified by recrystallization from water (H2O) to give 3,5-dimethylphenylboronic acid.

References

[1] Tetrahedron, 2019, vol. 75, # 2, p. 164 - 171

121-43-7
7732-18-5
34696-73-6
172975-69-8
Synthesis of 3,5-Dimethylphenylboronic acid from Trimethyl borate and Water and 3,5-DIMETHYLPHENYLMAGNESIUM BROMIDE
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View Lastest Price from 3,5-Dimethylphenylboronic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3,5-Dimethylphenylboronic acid pictures 2026-07-22 3,5-Dimethylphenylboronic acid
172975-69-8
$10.00 1KG 99% 300MT/year Speranza Chemical Co., Ltd.
3,5-Dimethylphenylboronic acid pictures 2026-07-21 3,5-Dimethylphenylboronic acid
172975-69-8
0.99 RongNa Biotechnology Co.,Ltd
3,5-Dimethylphenylboronic acid pictures 2026-07-09 3,5-Dimethylphenylboronic acid
172975-69-8
$1.20-34.00 1kg 99% Henan Fengda Chemical Co., Ltd

3,5-Dimethylphenylboronic acid Spectrum

RARECHEM AH PB 0186 M-XYLENE-5-BORONIC ACID TIMTEC-BB SBB004076 3,5-Dimethyl benzene 3,5-DIMETHYLBENZENEBORONIC ACID 3,5-DIMETHYLPHENYLBORONIC ACID AKOS BRN-0067 3,5-DIMETHYLBENZENEBORONIC ACID 98% 3,5-Dimethylphenylboronic Acid (contains varying amounts of Anhydride) 3,5-Dimethylphenylboronic acid,97% 3,5-Dimethylphenylboronic acid ,98% 3,5-Dimethylphenylbo 3,5-Dimethylbenzeneboronic Acid m-Xylene-5-boronic Acid Boronic acid, B-(3,5-diMethylphenyl)- 3,5-dimethylphenylboronic v 3,5-Dimethylphenylboronicaci C8H11BO2 3,5-Dimethylphenylboronic acid 172975-69-8 3,5 Dimethyl Boronic Acid 3,5-Dimethylphenylboronic acid - [D2980] 172975-69-8 17223-69-8 BORONIC ACID Aryl Boronic Acids Boronic Acids and Derivatives Organometallic Reagents Pyridines B (Classes of Boron Compounds) Boronic Acids Boronic Acids Boronic Acids and Derivatives Aryl Organoborons Heterocyclic Compounds Boronic Acid blocks BoronicAcids Boric Acid