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Azidotrimethylsilane

Also known as: Trimethylsilyl azide, Azidotrimethylsilane, TMSiA, Trimethylazidosilane, Azidotrimethyl-silan, Silane, azidotrimethyl-, TriMethylsilylazide, (CH3)3SiN3, Azido(trimethyl)silane

Azidotrimethylsilane (CAS 4648-54-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C3H9N3Si and a molecular weight of 115.209 g/mol. Key properties include a melting point of -95°C, a boiling point of 92-95 °C(lit.), a density of 0.876 g/mL at 20 °C(lit.) and a flash point of 23.3 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
4648-54-8
Jingsj CID
J-4199-6
Molecular Formula
C3H9N3Si
Molecular Weight
115.209 g/mol
Category
Aliphatic Hydrocarbons
Last updated
11/2/2026

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Physicochemical Properties

Melting Point-95°C
Boiling Point92-95 °C(lit.)
Density0.876 g/mL at 20 °C(lit.)
Flash Point23.3 °C
Exact Mass115.056572
PSA49.75000
LogP0.65
Refractive Indexn20/D 1.415(lit.)
Additional Propertydecomposes

GHS Safety & Compliance

Flammable / Acute ToxicitySignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H331 — Toxic if inhaled

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 Azidotrimethylsilane?

The CAS number of Azidotrimethylsilane is 4648-54-8.

What are the molecular formula and molecular weight of Azidotrimethylsilane?

Azidotrimethylsilane has molecular formula C3H9N3Si and molecular weight 115.209 g/mol.

Is Azidotrimethylsilane hazardous?

Azidotrimethylsilane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.

What are the upstream and downstream products of Azidotrimethylsilane?

For Azidotrimethylsilane, Upstream Products: Chlorotrimethylsilane, Tris(trimethylsilyl) phosphate, Benzenesulfonyl isocyanate; Downstream Products: 2-Chloropyridine, 2-Fluoropyridine, 2H-1,3-Oxazine-2,6(3H)-dione.

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

Last updated:

How to cite: Jingsj. "Azidotrimethylsilane (CAS 4648-54-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4199-6 (accessed 2026-11-09).

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