Barbaloin A

  • Aloin A
  • 10-b-D-Glucopyranosyl-1,8-dihydroxy-3-(hydroxymethyl)-9(10H)-anthracenone
  • 1,8-Dihydroxy-10-(b-D-glucopyranosyl)-3-(hydroxymethyl)-9(10H)-anthracenone
Formula
C21H22O9
Structure
Uses
Natrual producted isolated from the leaves of Aloe excelsa.

Registry Numbers and Inventories.
CAS
1415-73-2
EC (EINECS/ELINCS)
215-808-0
36/37/38
RTECS
LZ6520000
RTECS class
Other
Merck
13,304
Beilstein/Gmelin
6077558
Beilstein Reference
6-18
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C21H22O9
Formula mass
418.43
Boiling point, °C
753
Vapor pressure, mmHg
8.5E-24 (25 C)
Solubility in water
Insoluble
pKa/pKb
6.88 (pKb)
Heat of vaporization
115 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store under argon. Store at 2-8 C
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.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide.

Fire.
Flash Point,°C
268
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
2
 
Flammability
0
 
 
Reactivity
1
 

Health.
Exposure effects
Irritant. Irritating to eyes, respiratory system and skin. Target organ(s): G.I. System.
   Ingestion
May be harmful if swallowed.
   Inhalation
Material is irritating to mucous membranes and upper respiratory tract. May be harmful if inhaled.
   Skin
Causes skin irritation. May be harmful if absorbed through the skin.
   Eyes
Causes 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.