Product Name: Pyrrole CAS : 109-97-7 Molecular Formula: C4H5N Molecular Weight: 348.47484 EINECS : 203-724-7 UN: UN 1992 3/PG 3 Purity: 99.9% Appearance: Freshly distilled into a colorless liquid, it will turn into light yellow to brown when exposed to light, exposed or stored for a long time. Physical properties: Pyrrole is a five-membered heterocyclic compound containing a nitrogen heteroatom. Its molecular formula is C4H5N, a colorless liquid, with a boiling point of 130-131掳C and a relative density of 0.9691 (20/4掳C). Slightly soluble in water, soluble in organic solvents such as ethanol and ether. Pyrrole and its homologues mainly exist in bone tar, and the amount of coal tar is very small, which can be obtained by fractionation of bone tar; or the bone tar is treated with dilute alkali, and then acidified by acid and purified by fractionation. IndexStandard AppearanceColorless to yellow transparent liquid, brown after storage Content (GC), %鈮?9.9鈮?9.5 Water (K, F), %鈮?.10鈮?.30 Application: Used for synthesizing medicines, fragrances and electronic chemicals etc. Packaging:220kg/plastic drum Suitable conditions:Coated with PVF steel barrel, net contents of each barrel are 180kg, 50kg and 20kg. Suitable conditions: The product should be stored in an environment with a temperature lower than 5鈩? protected from light and air, and filled with nitrogen for protection. There should be no fire source near, and no mixing with oxidants and acids. Store and transport according to flammable chemicals. The storage period is six months.Flavors And Fragrances website:http://www.flgchem.com/flavors-and-fragrances/