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1-(Trimethylsilyl)-1H-benzotriazole

Also known as: 1-(Trimethylsilyl)-1H-benzo[d][1,2,3]triazole, 1-TMS-1H-benzotriazole, 1-trimethylsilyl-1,2,3-benzotriazole, Trimethylsilylbenzotriazole, 1-(Trimethylsilyl)-1H-benzotriazole 96%, MFCD00216577

1-(Trimethylsilyl)-1H-benzotriazole (CAS 43183-36-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H13N3Si and a molecular weight of 191.305 g/mol. Key properties include a boiling point of 251.0±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 105.6±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
43183-36-4
Jingsj CID
J-48118-5
Molecular Formula
C9H13N3Si
Molecular Weight
191.305 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point251.0±23.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point105.6±22.6 °C
Exact Mass191.087875
PSA30.71000
LogP2.60
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.563

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-(Trimethylsilyl)-1H-benzotriazole?

The CAS number of 1-(Trimethylsilyl)-1H-benzotriazole is 43183-36-4.

What are the molecular formula and molecular weight of 1-(Trimethylsilyl)-1H-benzotriazole?

1-(Trimethylsilyl)-1H-benzotriazole has molecular formula C9H13N3Si and molecular weight 191.305 g/mol.

Is 1-(Trimethylsilyl)-1H-benzotriazole hazardous?

1-(Trimethylsilyl)-1H-benzotriazole has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

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-(Trimethylsilyl)-1H-benzotriazole (CAS 43183-36-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48118-5 (accessed 2026-11-09).

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