Radicinin

  • Stemphylone
  • 4H,5H-Pyrano[4,3-b]pyran-4,5-dione, 2,3-dihydro-3-hydroxy-2-methyl-7-[(1E)-1-propenyl]-, (2S,3S)-
Formula
C12H12O5
Structure

Registry Numbers and Inventories.
CAS
10088-95-6
RTECS
UQ1360000
Merck
12,8276

Properties.
Formula
C12H12O5
Formula mass
236.22
Melting point, °C
221.5
Boiling point, °C
431
Vapor pressure, mmHg
3.2E-9 (25 C)
Density
1.35 g/cm3 (20 C)
Solubility in water
3.3 g/L
pKa/pKb
11.30 (pKa)
Partition coefficient, pKow
0.16
Heat of vaporization
79.24 kJ/mol

Hazards and Protection.
Storage
Keep container tightly closed. Store at 2 - 8 C.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
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
Stable at normal temperratures and pressures.
Decomposition
Oxides of carbon.

Fire.
Flash Point,°C
169
Fire fighting
Extinguish with 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
0
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
May be harmful by inhalation, ingestion, or skin absorption. May cause 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. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.