Maleamic acid Property

Melting point:

158-161 °C (lit.)

Boiling point:

215.33°C (rough estimate)

Density 

1.4769 (rough estimate)

refractive index 

1.4170 (estimate)

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

form 

Solid

pka

2.86±0.25(Predicted)

color 

White to off-white

Merck 

14,5701

Stability:

Stable, but light sensitive. Incompatible with strong oxidizing agents.

CAS DataBase Reference

557-24-4(CAS DataBase Reference)

NIST Chemistry Reference

Maleamic acid(557-24-4)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

HS Code 

2914.40.9000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Maleamic acid Chemical Properties,Usage,Production

Chemical Properties

solid

Uses

Intermediate in the preparation of a new conjugated agent for radioiodination of proteins.

Definition

ChEBI: A dicarboxylic acid monoamide of maleamic acid.

Purification Methods

Crystallise it from EtOH. [Beilstein 2 H 752, 2 II 646, 2 III 1927, 2 IV 1927.] IRRITANT.