CIS-STILBENE

Synonym(s):cis-1,2-Diphenylethylene;Isostilbene

CAS NO.：645-49-8
Empirical Formula: C14H12
Molecular Weight: 180.25
MDL number: MFCD00004788
EINECS: 211-445-7
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-13 11:23:56

What is CIS-STILBENE?

Chemical properties

pale yellow liquid

The Uses of CIS-STILBENE

cis-Stilbene: stilbene and its natural derivatives such as resveratrol and vitisins inhibits Staphylococcus aureus hemolytic activity and biofilm formation without affecting its bacterial growth

Definition

ChEBI: Cis-stilbene is the cis-isomer of stilbene.

General Description

Oily yellow liquid. Freezing point 5°C. Insoluble in water. Soluble in ethanol. Unstable relative to the trans isomer, which is a solid with a melting point of 122-124°C.

Air & Water Reactions

Sensitive to prolonged exposure to air and light [Lancaster]. Insoluble in water.

Reactivity Profile

CIS-STILBENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release gaseous hydrogen.

Fire Hazard

Flash point data for CIS-STILBENE are not available, however CIS-STILBENE is probably combustible.

Purification Methods

Purify it by chromatography on alumina using hexane and distil it under vacuum. (The final product contains ca 0.1% of the trans-isomer.) [Lewis et al. J Am Chem Soc 107 203 1985, Saltiel J Phys Chem 91 2755 1987, Beilstein 5 H 630.]

Properties of CIS-STILBENE

Melting point:	-5°C
Boiling point:	82-84 °C0.4 mm Hg(lit.)
Density	1.011 g/mL at 25 °C(lit.)
refractive index	n20/D 1.622(lit.)
Flash point:	>230 °F
storage temp.	2-8°C
form	clear liquid
color	Colorless to Yellow to Green
Water Solubility	Immiscible with water. Miscible with ethanol.
Merck	14,8817
BRN	1616739
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents.
CAS DataBase Reference	645-49-8(CAS DataBase Reference)
EPA Substance Registry System	cis-Stilbene (645-49-8)

Safety information for CIS-STILBENE

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H319:Serious eye damage/eye irritation
Precautionary Statement Codes	P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.