Methyl 5-chloro-2-hydroxybenzoate

  • Benzoic acid, 5-chloro-2-hydroxy-, methyl ester
  • 5-Chlorosalicylic acid methyl ester
  • Methyl 2-hydroxy-5-chlorobenzoate
  • 2-Hydroxy-5-chlorobenzoic acid methyl ester
  • 5-Chloro-2-hydroxybenzoic acid methyl ester
Formula
C8H7ClO3
Structure
Description
Solid.

Registry Numbers and Inventories.
CAS
4068-78-4
EC (EINECS/ELINCS)
223-778-5
R: 36/37/38
S: 26 37
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
C8H7ClO3
Formula mass
186.59
Melting point, °C
42 - 43
Boiling point, °C
261
Vapor pressure, mmHg
0.0075 (25 C)
Density
1.354 g/cm3 (20 C)
Solubility in water
Insoluble
pKa/pKb
9.31 (pKa)
Partition coefficient, pKow
3.24
Heat of vaporization
51.8 kJ/mol

Hazards and Protection.
Storage
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers.
Protection
Protective work clothing. Chemical protective gloves. Safety glasses or goggles.
Stability
Decomposition will not occur if used and stored according to specifications.
Incompatibilities
Oxidizing agents.

Fire.
Flash Point,°C
111
Fire fighting
Extinguish with carbon dioxide, extinguishing powder or water spray. Fight larger fires with water spray or alcohol resistant foam. Wear self-contained respirator. Wear fully protective impervious suit.
Combustion products
Carbon monoxide and carbon dioxide. Hydrogen chloride (HCl).
Health
1
 
Flammability
1
 
 
Reactivity
1
 

Health.
Exposure effects
Causes irritation of the eyes, skin and mucous membranes.

First aid
 
   Ingestion
Seek medical treatment.
   Inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
   Skin
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
   Eyes
Rinse opened eye for several minutes under running water. Then consult a doctor.

Transport.