5,6-BENZOQUINOLINE

CAS NO.：85-02-9
Empirical Formula: C13H9N
Molecular Weight: 179.22
MDL number: MFCD00022235
EINECS: 201-582-0
SAFETY DATA SHEET (SDS)
Update Date: 2026-04-10 10:27:04

What is 5,6-BENZOQUINOLINE?

Chemical properties

BROWN CRYSTALLINE POWDER

The Uses of 5,6-BENZOQUINOLINE

As a reagent for the determination of cadmium which is pptd as (C13H9N)2H2(CdI4) from dil nitric or sulfuric acid solution in the presence of potassium iodide.

General Description

Yellow crystals or white powder. Characteristic irritating odor.

Air & Water Reactions

Sensitive to prolonged exposure to air. Insoluble in water.

Reactivity Profile

5,6-BENZOQUINOLINE neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides.

Fire Hazard

5,6-BENZOQUINOLINE is combustible.

Safety Profile

Mutation data reported. Whenheated to decomposition it emits toxic fumes of NOx.

Purification Methods

Purify as 3,4-benzoquinoline above. The picrate has m 258.1-259o (from EtOH or H2O). [Albert et al. J Chem Soc 2240 1948, Beilstein 20 III/IV 4009, 20/8 V 220.]

Properties of 5,6-BENZOQUINOLINE

Melting point:	89-91 °C
Boiling point:	349 °C (721 mmHg)
Density	1.1255 (rough estimate)
refractive index	1.7270 (estimate)
Flash point:	166 °C
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
Water Solubility	Insoluble in water
form	Crystalline
pka	pK1: 5.00(+1) (25°C)
color	Leaflets from H2O or pet ether
Merck	14,1105
CAS DataBase Reference	85-02-9(CAS DataBase Reference)
EPA Substance Registry System	Benzo[f]quinoline (85-02-9)

Safety information for 5,6-BENZOQUINOLINE

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07 Health Hazard GHS08
GHS Hazard Statements	H341:Germ cell mutagenicity H401:Hazardous to the aquatic environment, acute hazard
Precautionary Statement Codes	P201:Obtain special instructions before use. P202:Do not handle until all safety precautions have been read and understood. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P271:Use only outdoors or in a well-ventilated area. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P308+P313:IF exposed or concerned: Get medical advice/attention. P405:Store locked up. P501:Dispose of contents/container to..…