Pyrrole
Also known as: 1-Aza-2,4-cyclopentadiene, 1H-pyrrole, AZOLE, Azole, Divinyleneimine, Divinylenimine, EINECS 203-724-7, FEMA 3386, IMIDOLE, MFCD00005216, Monopyrrole, PYRROLE, Parzate, Pyrrhol, Pyrrol, Pyrroline
Pyrrole (CAS 109-97-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H5N and a molecular weight of 67.08920 g/mol. Key properties include a melting point of -23 °C, a boiling point of 131 °C(lit.), a density of 0.967 g/mL at 25 °C(lit.) and a flash point of 33.3 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H301 — Toxic if swallowed and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 109-97-7
- Jingsj CID
- J-1320334-6
- Molecular Formula
- C4H5N
- Molecular Weight
- 67.08920 g/mol
- Category
- Organic Compounds
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -23 °C |
|---|---|
| Boiling Point | 131 °C(lit.) |
| Density | 0.967 g/mL at 25 °C(lit.) |
| Flash Point | 33.3 °C |
| Exact Mass | 67.04220 |
| PSA | 15.79000 |
| LogP | 1.01470 |
| Additional Property | 2.31 (vs air) |
| Refractive Index | n20/D 1.508(lit.) |
| Additional Property | 60 g/L (20 ºC) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H301 — Toxic if swallowed
- H318 — Causes serious eye damage
- H332 — Harmful if inhaled
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Pyrrole?
The CAS number of Pyrrole is 109-97-7.
What are the molecular formula and molecular weight of Pyrrole?
Pyrrole has molecular formula C4H5N and molecular weight 67.08920 g/mol.
Is Pyrrole hazardous?
Pyrrole has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H301 — Toxic if swallowed; H318 — Causes serious eye damage.
What are the upstream and downstream products of Pyrrole?
For Pyrrole, Upstream Products: Acetyl chloride, Butyryl chloride, 2-Cyanoacetamide; Downstream Products: 1,8-Dichlorohexadecafluorooctane, 1-Chloro-4H-octafluorobutane, 2-Propionylpyrrole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pyrrole (CAS 109-97-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1320334-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.