Bis(3-aminopropyl)amine

Also known as: 3,3'-Diaminodipropylamine, Dipropylenetriamine, 3,3'-Iminodipropylamine, N-(3-Aminopropyl)-1,3-propanediamine, Norspermidine, IBPA, Iminodipropylamine, Imino-bis(3-propylamine), bis-(3-amino-propyl)amine, N'-(3-aminopropyl)propane-1,3-diamine, 3,3'-Iminobis(propylamine), Bis(3-aminopropyl)amine

Bis(3-aminopropyl)amine (CAS 56-18-8) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C6H17N3 and a molecular weight of 131.219 g/mol. Key properties include a melting point of −14 °C(lit.), a boiling point of 242.1±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 118.3±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H311 — Toxic in contact with skin and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 56-18-8
Jingsj CID: J-1068321-3
Molecular Formula: C₆H₁₇N₃
Molecular Weight: 131.219 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	−14 °C(lit.)
Boiling Point	242.1±0.0 °C at 760 mmHg
Density	0.9±0.1 g/cm3
Flash Point	118.3±0.0 °C
Exact Mass	131.142242
PSA	64.07000
LogP	-1.14
Vapor Pressure	0.0±0.4 mmHg at 25°C
Refractive Index	1.476
Stability	Air and light sensitive. Combustible. Incompatible with oxidizing agents.

GHS Safety & Compliance

Corrosion / Acute Toxicity / Health HazardSignal word: Danger

H302 — Harmful if swallowed
H311 — Toxic in contact with skin
H314 — Causes severe skin burns and eye damage
H317 — May cause an allergic skin reaction
H330 — Fatal if inhaled
H341 — Suspected of causing genetic defects
H373 — May cause damage to organs through prolonged exposure

Frequently Asked Questions

What is the CAS number of Bis(3-aminopropyl)amine?

The CAS number of Bis(3-aminopropyl)amine is 56-18-8.

What are the molecular formula and molecular weight of Bis(3-aminopropyl)amine?

Bis(3-aminopropyl)amine has molecular formula C6H17N3 and molecular weight 131.219 g/mol.

Is Bis(3-aminopropyl)amine hazardous?

Bis(3-aminopropyl)amine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H311 — Toxic in contact with skin; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Bis(3-aminopropyl)amine?

For Bis(3-aminopropyl)amine, Upstream Products: 3,3'-Iminodipropionitrile, 1,3-Dichloropropane, 1,3-Propanediol; Downstream Products: N,N'-Bis(3-aminopropyl)-1,3-propanediamine, 1,5,9-Triazacyclododecane, 1,5,7-Triazabicyclo[4.4.0]dec-5-ene.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Bis(3-aminopropyl)amine (CAS 56-18-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1068321-3 (accessed 2026-11-09).

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