3,4-Dihydroxybenzaldehyde
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3,4-Dihydroxybenzaldehyde

3,4-Dihydroxybenzaldehyde's cas code is 139-85-5

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Product Description

3,4-Dihydroxybenzaldehyde Basic information


Description


Product Name:

3,4-Dihydroxybenzaldehyde

CAS:

139-85-5

MF:

C7H6O3

MW:

138.12

EINECS:

205-377-7

Mol File:

139-85-5.mol



3,4-Dihydroxybenzaldehyde Chemical Properties


Melting point 

150-157 °C(lit.)

Boiling point 

213.5°C (rough estimate)

density 

1.2667 (rough estimate)

refractive index 

1.4600 (estimate)

storage temp. 

2-8°C

solubility 

6.3g/l

pka

pK (25°) 7.55

form 

Crystalline Powder

color 

slightly brown

Water Solubility 

50 g/L (20 ºC)

Sensitive 

Air Sensitive

Merck 

14,7893

BRN 

774381

Stability:

Stable. Incompatible with strong bases, strong oxidizing agents.

CAS DataBase Reference

139-85-5(CAS DataBase Reference)

NIST Chemistry Reference

3,4-Dihydroxybenzaldehyde(139-85-5)

EPA Substance Registry System

Benzaldehyde, 3,4-dihydroxy- (139-85-5)


3,4-Dihydroxybenzaldehyde Safety Information


Hazard Codes 

Xi

Risk Statements 

36/37/38-22

Safety Statements 

26-36-37/39

WGK Germany 

3

RTECS 

UL0380000

9

Hazard Note 

Irritant/Air Sensitive

HS Code 

29124900


3,4-Dihydroxybenzaldehyde Usage And Synthesis


Chemical Properties

brown powder

Purification Methods

Crystallise the aldehyde from water or toluene and dry it in a vacuum desiccator over KOH pellets or shredded wax respectively. [Beilstein 8 IV 1762.]


3,4-Dihydroxybenzaldehyde Preparation Products And Raw materials


Preparation Products

4'-FORMYLBENZO-15-CROWN 5-ETHER-->3-(3,4-DIHYDROXYPHENYL)PROPIONIC ACID-->3',4'-(DIOCTYLOXY)BENZALDEHYDE-->3',4'-(DIDECYLOXY)BENZALDEHYDE-->3,4-DIHYDRO-2H-1,5-BENZODIOXEPINE-7-CARBALDEHYDE

Raw materials

Phosphorus pentachloride


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