Chelidonic acid

  • Jervasic acid
  • 4-Pyranone-2,6-dicarboxylic acid
  • 4-Oxo-4H-pyran-2,6-dicarboxylic acid
  • 4-Oxo-1,4-pyran-2,6-dicarboxylic acid
Formula
C7H4O6
Structure
Uses
Component of many herbal medicines.

Registry Numbers and Inventories.
CAS
99-32-1
EC (EINECS/ELINCS)
202-749-0
36/37/38
RTECS
UP7350000
RTECS class
Other
Merck
12,2094
Beilstein/Gmelin
163607
Beilstein Reference
5-18-08-00646
Swiss Giftliste 1
G-6045

Properties.
Formula
C7H4O6
Formula mass
184.11
Melting point, °C
256 - 257
Boiling point, °C
471
Vapor pressure, mmHg
3E-10 (25 C)
Solubility in water
Very soluble
Refractive index
 
pKa/pKb
1.70 (pKa)
Heat of vaporization
80.4 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator.
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.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide.

Fire.
Flash Point,°C
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.
Hazards
Emits toxic fumes under fire conditions.

Health.
Poison_Class
4
Exposure effects
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   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.

Transport.