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N,N-Dimethyltrimethylsilylamine

Also known as: (Dimethylamino)trimethylsilane, N,N-Dimethylaminotrimethylsilane, N-Trimethylsilyldimethylamine, TMSDMA, Pentamethylsilanamine, Dimethyl(trimethylsilyl)amine

N,N-Dimethyltrimethylsilylamine (CAS 2083-91-2) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H15NSi and a molecular weight of 117.26500 g/mol. Key properties include a melting point of <0ºC, a boiling point of 84 °C(lit.), a density of 0.732 g/mL at 25 °C(lit.) and a flash point of -19.4 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly 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 3, 2026.

CAS No.
2083-91-2
Jingsj CID
J-1504554-2
Molecular Formula
C5H15NSi
Molecular Weight
117.26500 g/mol
Category
Organic Bases
Last updated
11/3/2026

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Physicochemical Properties

Melting Point<0ºC
Boiling Point84 °C(lit.)
Density0.732 g/mL at 25 °C(lit.)
Flash Point-19.4 °C
Exact Mass117.09700
PSA3.24000
LogP1.38290
Vapor Pressure4.11mmHg at 25°C
Refractive Indexn20/D 1.397(lit.)

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N,N-Dimethyltrimethylsilylamine?

The CAS number of N,N-Dimethyltrimethylsilylamine is 2083-91-2.

What are the molecular formula and molecular weight of N,N-Dimethyltrimethylsilylamine?

N,N-Dimethyltrimethylsilylamine has molecular formula C5H15NSi and molecular weight 117.26500 g/mol.

Is N,N-Dimethyltrimethylsilylamine hazardous?

N,N-Dimethyltrimethylsilylamine has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of N,N-Dimethyltrimethylsilylamine?

For N,N-Dimethyltrimethylsilylamine, Upstream Products: Chlorotrimethylsilane, Dimethylamine, N,N,N',N'-Tetramethyldiaminomethane; Downstream Products: (Dimethylaminomethylene)dimethylammonium chloride, bis(dimethylamino)chlorophosphine, Hexamethyldisiloxane.

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-Dimethyltrimethylsilylamine (CAS 2083-91-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504554-2 (accessed 2026-11-09).

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