Product Identification

Product Name

Chelidonic acid

Synonyms

4-Oxo-1,4-pyran-2,6-dicarboxylic acid
4-Oxo-4H-pyran-2,6-dicarboxylic acid
4-Oxopyran-2,6-dicarboxylic acid
4-Pyranone-2,6-dicarboxylic acid
Jervasic acid

CAS

99-32-1

Formula

C7H4O6

Molecular Weight

184.11

EINECS

202-749-0

RTECS

UP7350000

RTECS Class

Other

Merck

12,2094

Beilstein/Gmelin

163607

Beilstein Reference

5-18-08-00646

Physical and Chemical Properties

Solubility in water

Very soluble

Melting Point

256 - 257

Boiling Point

471

Vapor Pressure

3E-10 (25 C)

pKa/pKb

1.70 (pKa)

Heat Of Vaporization

80.4 kJ/mol

Usage

Component of many herbal medicines.

Refractive Index

 

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician.

Inhalation

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.

Skin

In case of contact, immediately wash skin with soap and copious amounts of water.

Eyes

In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Handling and Storage

Storage

Keep tightly closed. Store in a cool dry place.

Hazards Identification

Eyes

May cause eye irritation.

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

36/37/38

EC Safety Phrase

26 36

Exposure Controls/Personal Protection

Personal Protection

Compatible chemical-resistant gloves. Chemical safety goggles.

Respirators

Government approved respirator.

Poison Class

4

Fire Fighting Measures

Flash Point

204

Fire Fighting

Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks

Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, Carbon dioxide.