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LC5312 Pyrrole
for synthesis


Order number Packaging Quantity Price €
AC32312 Glass bottle 25 ml 13.05
AC32312 Glass bottle 100 ml 40.95


Product information
Hill Formula C4H5N
HS Code 2933 99 80
EC number 203-724-7
Molar mass 67.09 g/mol
Storage Store at +2°C to +8°C.
CAS number 109-97-7


Chemical and physical data
Ignition temperature 550 °C
Solubility 60 g/l (20 °C)
Melting point -24 °C
Molar mass 67.09 g/mol
Density 0.97 g/cm3 (20 °C)
pH value >6 (10 g/l, H2O, 20 °C)
Boiling point 130 – 131 °C
Vapor pressure 8.7 hPa (20 °C)
Explosion limit 3.10 – 14.8 %(V)
Flash point 39 °C
Refractive index 1.5082 (20 °C, 589 nm)


Safety information according to GHS
Hazard Statement(s) H226: Flammable liquid and vapour.
H332: Harmful if inhaled.
H301: Toxic if swallowed.
H318: Causes serious eye damage.
Precautionary Statement(s) P210: Keep away from heat.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Warning
Hazard Pictogram(s)

RTECS UX9275000
Storage class 3 Flammable Liquids
WGK WGK 2 water endangering
Disposal 9
Carcinogenic compounds and flammable compounds labelled “Highly toxic” or “Toxic”: container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).


Safety information
R Phrase R 10-20-25-41
Flammable.Harmful by inhalation.Toxic if swallowed.Risk of serious damage to eyes.
S Phrase S 26-37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger flammable, toxic, irritant
Hazard Symbol Toxic


Transport information
Declaration (transport by sea) IMDG-Code UN 1992 FLAMMABLE LIQUID, TOXIC, N.O.S.(PYRROLE), 3 (6.1), III
Declaration (transport by air) IATA-DGR UN 1992 FLAMMABLE LIQUID, TOXIC, N.O.S.(PYRROLE), 3 (6.1), III


Toxicological data
LD 50 oral LD50 rat 137 mg/kg


Assay (GC, area%) ≥ 97 %
Density (d 20 °C/ 4 °C) 0.967 – 0.971
Identity (IR) passes test