4-Aminobenzophenone Property

Melting point:

121-124 °C (lit.)

Boiling point:

246 °C (12.7517 mmHg)

Density 

1.0957 (rough estimate)

refractive index 

1.6050 (estimate)

Flash point:

245-247°C/22mm

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

form 

Fine Crystalline Powder

pka

pK1: 2.15(+1) (25°C)

color 

Yellow

Water Solubility 

Soluble in cold water, alcohol and ether.

BRN 

389292

CAS DataBase Reference

1137-41-3(CAS DataBase Reference)

EPA Substance Registry System

Methanone, (4-aminophenyl)phenyl- (1137-41-3)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38-22

Safety Statements 

26-36-37/39

WGK Germany 

3

RTECS 

DJ0175000

F 

8-10-23

TSCA 

Yes

HazardClass 

IRRITANT

HS Code 

29223990

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

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.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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.

4-Aminobenzophenone Chemical Properties,Usage,Production

Chemical Properties

YELLOW FINE CRYSTALLINE POWDER

Uses

4-Aminobenzophenone is associated with 4-benzoylpyridine and it is used as a frequency doubler for semiconductor lasers. It is used in the preparation of 1-[4-[N,N-bis(trimethylsilyl)amino]phenyl]-1-phenylethylene. It is used as a precursor to prepare 1,2,3-triazoles, pyrimidotriazoles, benzothiazole and pyrimidinone derivatives. It is involved in the formation of coordination complexes with chromium(III).

Synthesis Reference(s)

Tetrahedron Letters, 39, p. 1313, 1998 DOI: 10.1016/S0040-4039(97)10877-2

General Description

4-Aminobenzophenone (4-ABP) is the best derivative of benzophenone with 260 times higher second harmonic generation (SHG) efficiency than potassium dihydrogen phosphate (KDP), growth of high quality bulk crystal still remains a difficult task.

Safety Profile

Poison by intraperitoneal route. See also KETONES and AMINES. When heated to decomposition it emits toxic fumes of NOx,.

Purification Methods

Dissolve it in aqueous acetic acid, filter and precipitate it with ammonia. This process is repeated several times, then the amine is recrystallised from aqueous EtOH. [Beilstein 14 IV 248.]