Sulfamethoxypyridazine

  • N1-(6-Methoxy-3-pyridazinyl)sulfanilamide
  • 6-Sulfanilamido-3-methoxypyridazine
  • 6-Methoxy-3-pyridazinylsulfanilamide
  • 3-(4-Aminobenzenesulfonamido)-6-methoxypyridazine
  • 3-p-Aminobenzenesulphonamido-6-methoxypyridazine
  • 4-Amino-N-(6-methoxy-3-pyridazinyl)benzenesulfonamide
Formula
C11H12N4O3S
Structure
Uses
A sulfanilamide antibacterial agent.

Registry Numbers and Inventories.
CAS
80-35-3
EC (EINECS/ELINCS)
201-272-5
22 24/25
RTECS
WP0400000
RTECS class
Reproductive Effector
Merck
13,9004
Beilstein/Gmelin
277076
Beilstein Reference
5-25-12-00424
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
C11H12N4O3S
Formula mass
280.31
Melting point, °C
182 - 183
Boiling point, °C
565
Vapor pressure, mmHg
9E-13 (25 C)
Density
1.483 g/cm3 (
Solubility in water
Slightly soluble
pKa/pKb
7.19 (pKa)
Heat of vaporization
84.9 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store at 2-8 C
Protection
Protective gloves. Chemical safety goggles.
Respirators
Wear dust mask.
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, Nitrogen oxides, Sulfur oxides.

Fire.
Flash Point,°C
295
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
1
 
Flammability
0
 
 
Reactivity
1
 

Health.
Exposure effects
Avoid contact and inhalation.
   Ingestion
May be harmful if swallowed.
   Inhalation
May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.
   Skin
May cause skin irritation. May be harmful if absorbed through the skin.
   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 breathing becomes difficult, call a physician.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   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.