Product Identification

Product Name

5-[(1E)-2-(4-Hydroxyphenyl)ethenyl]-1,3-benzenediol

Synonyms

(E)-5-(p-Hydroxystyryl)resorcinol
3,4',5-Stilbenetriol
3,4',5-Trihydroxy-trans-stilbene
5-[(1E)-2-(4-Hydroxyphenyl)ethenyl]-1,3-benzenediol

CAS

501-36-0

Formula

C14H12O3

Molecular Weight

228.25

Merck

12,8326

Physical and Chemical Properties

Appearance

Crystalline solid.

Solubility in water

100 mg/L (25 C)

Melting Point

260

Vapor Pressure

3.4E-10 (25 C)

Density

1.36 g/cm3 (20 C)

pKa/pKb

9.15 (pKa)

Partition Coefficient

3.14

Usage

Sold as a nutritional supplement derived primarily from japanese knotweed. Resveratrol extends the life span of several short-living species of animals; however, this effect has not yet been demonstrated in mammals.

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Never give anything by mouth to an unconscious person. Get medical attention. Do NOT induce vomiting unless directed to do so by medical personnel.

Inhalation

If inhaled remove to fresh air. If not breathing, give artificial respiration or give oxygen by trained personnel. Get immediate medical attention.

Eyes

In case of contact with eyes, hold eyelids apart and flush eyes with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 20 minutes. Have eyes examined and tested by medical personnel.

Handling and Storage

Storage

Keep tightly closed. Store at correct temperature.

Exposure Controls/Personal Protection

Personal Protection

Wear a NIOSH/MSHA approved self-contained breathing apparatus and appropriate personal protection (rubber boots, safety goggles, and heavy rubber gloves).

Exposure Effects

Material may be irritating to the mucous membranes and upper respiratory tract. May be harmful by inhalation, ingestion, or skin absorption. May cause eye, skin, or respiratory system irritation.

Fire Fighting Measures

Fire Fighting

Wear self-contained breathing apparatus pressure-demand (MSHA/NIOSH approved or equivalent), and full protective gear to prevent contact with skin and eyes. Use alcohol foam, carbon dioxide, or water spray when fighting fires involving this material.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place in disposal container. Avoid raising dust. After removal, ventilate contaminated area and flush thoroughly with water.

Stability and Reactivity

Stability

Stable at normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, moisture.

Combustion Products

Emits toxic fumes under fire conditions.