3,4-Dimethylbenzoic acid Chemical Properties

Melting point:

163-165 °C (lit.)

Boiling point:

271.51°C (estimate)

Density 

1.0937 (estimate)

refractive index 

1.5188 (estimate)

storage temp. 

Sealed in dry,Room Temperature

pka

4.44±0.10(Predicted)

form 

Crystalline Powder

color 

White to beige

Water Solubility 

129.2mg/L(temperature not stated)

BRN 

907267

CAS DataBase Reference

619-04-5(CAS DataBase Reference)

NIST Chemistry Reference

Benzoic acid, 3,4-dimethyl-(619-04-5)

EPA Substance Registry System

3,4-Dimethylbenzoic acid (619-04-5)

Safety Information

Hazard Codes 

Xi,Xn

Risk Statements 

36/37/38-22

Safety Statements 

22-24/25-37/39-26

WGK Germany 

3

RTECS 

DG8734020

TSCA 

Yes

HS Code 

29163900

MSDS

• Language:English Provider:3,4-Dimethylbenzoic acid
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3,4-Dimethylbenzoic acid Usage And Synthesis

Chemical Properties

white to beige crystalline powder

Definition

ChEBI: A dimethylbenzoic acid in which the two methyl groups are located at positions 3 and 4.

Purification Methods

Crystallise it from EtOH or H2O (m 168-168.5o), and sublime it in vacuo. The phenyl ester has m 68o (from EtOH or pet ether) and b 155-157o/2mm. [Beilstein 9 II 353, 9 III 2441, 9 IV 1803.]

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