Chlorhexidine

  • Chlorohex
  • Nolvasan
  • Bis(p-chlorophenyldiguanido)hexane
  • 1,6-Di(N-p-chlorophenylbiguanidino)hexane
  • 1,6-Bis[5-(p-chlorophenyl)biguanidino]hexane
  • 1,1'-Hexamethylenebis[5-(4-chlorophenyl)biguanide]
Formula
C22H30Cl2N10
Structure
Uses
Analytical standard for pharmaceuticals.

Registry Numbers and Inventories.
CAS
55-56-1
EC (EINECS/ELINCS)
200-238-7
36/37/38 51/53
26 36/37 60 61
RTECS
DU1925000
RTECS class
Mutagen; Reproductive Effector; Primary Irritant
Merck
12,2140
Beilstein/Gmelin
2826432
Beilstein Reference
4-12-00-01201
EPA OPP
217100
Swiss Giftliste 1
G-42959
New Zealand
Listed

Properties.
Formula
C22H30Cl2N10
Formula mass
505.45
Melting point, °C
134 - 136
Boiling point, °C
592
Vapor pressure, mmHg
6E-14 (25 C)
Solubility in water
Insoluble
pKa/pKb
2.27 (pKb)
Heat of vaporization
88.3 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed.
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, Nitrogen oxides, Hydrogen chloride gas.

Fire.
Flash Point,°C
312
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
3
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Irritant. Dangerous for the environment. Irritating to eyes, respiratory system and skin. Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. Photosensitizer.
   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.
   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.