155071

Azidotrimethylsilane

95%

• Synonym(s): Trimethylsilyl azide
• Linear Formula: (CH₃)₃SiN₃
• CAS Number: 4648-54-8
• Molecular Weight: 115.21
• Beilstein/REAXYS Number: 1903730
• EC Number: 225-078-5
• MDL number: MFCD00001986
• UNSPSC Code: 12352103
• eCl@ss: 39100709
• PubChem Substance ID: 24849336
• NACRES: NA.23

Properties

• assay: 95%
• form: liquid
• refractive index: n20/D 1.414 (lit.)
• bp: 52-53 °C/175 mmHg (lit.)
• density: 0.868 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: C[Si](C)(C)N=[N+]=[N-]
• InChI: 1S/C3H9N3Si/c1-7(2,3)6-5-4/h1-3H3
• InChI key: SEDZOYHHAIAQIW-UHFFFAOYSA-N

Description

General description

Azidotrimethylsilane (TMSN₃) is a a colorless and stable organosilane reagent. It shows very slow decomposition at high temperatures. It is a very commonly used azide source and has been used in the synthesis of aminotriazole ligands. Azidotrimethylsilane can be easily synthesised by adding chlorotrimethylsilane dropwise to a stirred solution of NaN₃ in diethylene glycol dimethyl ether.

Application

Azidotrimethylsilane can be used as:

• A nitrogen precursor to prepare GaN nanowire via metal-organic chemical vapor deposition method.
• An electrolyte additive in Li-O₂ batteries. The addition of TMSN₃ results in the formation of robust solid electrolyte interphase.
• An efficient reagent in the synthesis of tetrazoles, fullerenyl azide, and α-azido oximes.
• A silylating agent in the O-trimethyl silylation of alcohols and phenols.

Safety Information

• pictograms: GHS02,GHS06
• signalword: Danger
• hcodes: H225,H301 + H311 + H331
• pcodes: P210 - P233 - P280 - P301 + P310 - P303 + P361 + P353 - P304 + P340 + P311
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 42.8 °F - closed cup
• flash_point_c: 6 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter