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Name Structure CAS No. Spec. 

Pyrrole 

109-97-7 99.5%/99.9% 

Nature 

Colourless liquid just distilled which turns yellowish and brown in light, on 

standing and exposed to the air. Freezing point -23°C, boiling point130-131°C 

and flashing point 33°C. Soluble in alcohol,benzol and ether, but little soluble in 

water. Smell as chloroform. Application 

It is used for synthesising medicines, perfumes and electronic chemicals and so 

on. Packing 

180kgs, 50kgs or 20kgs net weight in a steel drum painted with PVF inside. 

Standard 

Molecular formula：C4H5N 

Molecular weight： 67.09 

Item Specification 

Appearance Colourless to yellow clear liquid which brown on standing 

Assay(GC), % ≥99.9 ≥99.5 

Water(K•F), % ≤0.10 ≤0.30 

Handling and storage 

Store in an area(below 10°C) where taken shelter from light and separated from 

air, under a nitrogen blanket.Keep away from sources of ignition, acids, oxidizer. 

Store and transport under the rule of flammable chemicals.Shelf-life is six 

months.