4-Hydroxyisophthalic acid Chemical Properties

Melting point:

>300°C

Boiling point:

310 C

Density 

1.4411 (rough estimate)

refractive index 

1.5690 (estimate)

storage temp. 

2-8°C

solubility 

DMSO (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)

form 

solid

pka

2?+-.0.10(Predicted)

color 

White to Pale Purple

Water Solubility 

0.3g/L(24 ºC)

Merck 

14,4827

Stability:

Hygroscopic

CAS DataBase Reference

636-46-4(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi,Xn

Risk Statements 

36/37/38-41-22-36/38

Safety Statements 

26-36/37/39-36-39-6

WGK Germany 

3

RTECS 

NT2544000

HS Code 

29182900

MSDS

• Language:English Provider:4-Hydroxy-1,3-benzenedecarboxylic acid

4-Hydroxyisophthalic acid Usage And Synthesis

Chemical Properties

White powder

Uses

4-Hydroxyisophthalic acid has been proposed as an improvement over aspirin. An impurity of Acetylsalicylic acid (A187780). Acetylsalicylic Acid Impurity B; Aspirin Impurity B

General Description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

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