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1-pyrroline

Also known as: 3,4-Dihydro-2H-pyrrole, Delta(1)-pyrroline, Δ¹-Pyrroline, 2H-Pyrrole, 3,4-dihydro-, Isopyrroline, 2H-Pyrrolenine, 3,4-dihydro-

1-pyrroline (CAS 5724-81-2) is a compound listed in the Jingsj chemical database. It has the molecular formula C4H7N and a molecular weight of 69.10510 g/mol. Key properties include a boiling point of 526.4ºC at 760 mmHg, a density of 1.61g/cm3 and a flash point of 272.2ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
5724-81-2
Jingsj CID
J-1994721-8
Molecular Formula
C4H7N
Molecular Weight
69.10510 g/mol
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point526.4ºC at 760 mmHg
Density1.61g/cm3
Flash Point272.2ºC
Exact Mass69.05780
PSA12.36000
LogP0.28660
InChIKeyZVJHJDDKYZXRJI-UHFFFAOYSA-N
SMILESC1=NCCC1
Refractive Index1.659

Frequently Asked Questions

What is the CAS number of 1-pyrroline?

The CAS number of 1-pyrroline is 5724-81-2.

What are the molecular formula and molecular weight of 1-pyrroline?

1-pyrroline has molecular formula C4H7N and molecular weight 69.10510 g/mol.

What are the upstream and downstream products of 1-pyrroline?

For 1-pyrroline, Upstream Products: Pyrrolidine, 1-chloro-, 1,4-Butanediol, Pyrrolidine; Downstream Products: 2-Acetyl-1-pyrroline, 2-Phenylpyrrolidine, Biphenyl.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1-pyrroline (CAS 5724-81-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1994721-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.