1H-Purine

  • 6H-Imidazo[4,5-d]pyrimidine
Formula
C5H4N4
Structure
Description
Light yellow powder.

Registry Numbers and Inventories.
CAS
120-73-0
EC (EINECS/ELINCS)
204-421-2
RTECS
UO7450000
RTECS class
Tumorigen; Mutagen
Merck
12,8129
Beilstein/Gmelin
3200
Beilstein Reference
4-26-00-01736

Properties.
Formula
C5H4N4
Formula mass
120.11
Boiling point, °C
265
Vapor pressure, mmHg
0.01 (25 C)
Density
1.22 g/cm3
Solubility in water
400 g/L
pKa/pKb
11.21 (pKb)
Partition coefficient, pKow
-0.71
Heat of vaporization
50.3 kJ/mol
Heat of combustion
-2709 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Protection
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of nitrogen, carbon dioxide.

Fire.
Flash Point,°C
114
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.