Guanazole

  • 1H-1,2,4-Triazole-3,5-diamine
  • 3,5-Diamino-1,2,4-triazole
  • 3,5-Diamino-S-triazole
  • 3,5-Diamino-1H-1,2,4-triazole
  • NSC 1895
Formula
C2H5N5
Structure
Description
Colorless crystals.

Registry Numbers and Inventories.
CAS
1455-77-2
EC (EINECS/ELINCS)
215-937-2
S 22 24/25
RTECS
XZ4535000
RTECS class
Tumorigen; Drug; Mutagen; Human Data
Beilstein/Gmelin
112467
Beilstein Reference
4-26-00-01161
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C2H5N5
Formula mass
99.10
Melting point, °C
205
Boiling point, °C
425
Solubility in water
Very soluble
pKa/pKb
7.95 (pKb)
Partition coefficient, pKow
-0.43

Hazards and Protection.
Storage
Store in a cool, dry place. Keep container closed when not in use.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Sensitive to heat, friction, and impact.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire potential
This material is probably combustible.

Health.
Exposure effects
   Ingestion
See inhalation.
   Inhalation
This chemical is stable under normal laboratory conditions.
   Skin
See inhalation.
   Eyes
See inhalation

First aid
 
   Ingestion
Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.

Transport.
HS Code
2933 99 90