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N,N,N',N'-Tetramethyl-1,4-butanediamine

Also known as: 1,4-Bis(dimethylamino)butane, N,N,N',N'-Tetramethyl-1,4-diaminobutane, N,N,N',N'-Tetramethyltetramethylenediamine, N,N,N',N'-tetramethylbutane-1,4-diamine, N1,N1,N4,N4-Tetramethylbutane-1,4-diamine

N,N,N',N'-Tetramethyl-1,4-butanediamine (CAS 111-51-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H20N2 and a molecular weight of 144.25800 g/mol. Key properties include a melting point of -100 °C, a boiling point of 166-167 °C(lit.), a density of 0.792 g/mL at 25 °C(lit.) and a flash point of 46.1 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
111-51-3
Jingsj CID
J-39057-8
Molecular Formula
C8H20N2
Molecular Weight
144.25800 g/mol
Category
Organic Bases
Last updated
11/2/2026

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Physicochemical Properties

Melting Point-100 °C
Boiling Point166-167 °C(lit.)
Density0.792 g/mL at 25 °C(lit.)
Flash Point46.1 °C
Exact Mass144.16300
PSA6.48000
LogP0.88980
Vapor Pressure1.57mmHg at 25°C
Refractive Indexn20/D 1.428(lit.)
Storage ConditionsFlammables area

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2921290000
Summary2921290000 other acyclic polyamines and their derivatives; salts thereof。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N,N,N',N'-Tetramethyl-1,4-butanediamine?

The CAS number of N,N,N',N'-Tetramethyl-1,4-butanediamine is 111-51-3.

What are the molecular formula and molecular weight of N,N,N',N'-Tetramethyl-1,4-butanediamine?

N,N,N',N'-Tetramethyl-1,4-butanediamine has molecular formula C8H20N2 and molecular weight 144.25800 g/mol.

Is N,N,N',N'-Tetramethyl-1,4-butanediamine hazardous?

N,N,N',N'-Tetramethyl-1,4-butanediamine has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of N,N,N',N'-Tetramethyl-1,4-butanediamine?

For N,N,N',N'-Tetramethyl-1,4-butanediamine, Upstream Products: Formaldehyde, 1,4-butanediamine, 1,4-Dibromobutane; Downstream Products: N-Nitrosodimethylamine, Cyhalothrin.

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

Last updated:

How to cite: Jingsj. "N,N,N',N'-Tetramethyl-1,4-butanediamine (CAS 111-51-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39057-8 (accessed 2026-11-09).

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