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8.00736 EMD Millipore

4-Pyridinecarboxylic acid

4-Pyridinecarboxylic acid for synthesis. CAS 55-22-1, pH 3 - 4 (6 g/l, H₂O, 20 °C) (saturated solution)., for synthesis

Synonym: iso-Nicotinic acid

  • CAS Number 55-22-1

  • Linear Formula C₆H₅NO₂

  • Molecular Weight 123.11 g/mol

  •  EC Number 200-228-2



Related Categories Acids, Acids & Bases, Chemical Synthesis, Synthetic Reagents
packaging   250 g in Plastic bottle (8007360250)
  5 g in Glass bottle (8007360005)
bp   260 °C (20 hPa)
solubility   6 g/l
mp   315 - 319 °C
pH   3 - 4 (6 g/l, H₂O, 20 °C) (saturated solution)
bulk density   500 kg/m3
LD 50 oral   LD50 Rat 5000 mg/kg
shipped in   ambient
storage temp.   Storage temperature: no restrictions.
specifications   Assay (HPLC, area%): ≥ 98.0 % (a/a)
  Identity (IR): passes test

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Safety Information

HS Code 
2933 39 99
Hazard Statement(s) 
H319: Causes serious eye irritation.
Precautionary Statement(s) 
P260: Do not breathe dust.
P262: Do not get in eyes, on skin, or on clothing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage class 
10 - 13 Other liquids and solids
WGK 1 slightly water endangering
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Irritant  Irritant
Categories of danger 
R Phrase 
R 36
Irritating to eyes.
S Phrase 
S 22-24-26
Do not breathe dust.Avoid contact with skin.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
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