N,N'-Bis(trimethylsilyl)urea, 98+%, Thermo Scientific Chemicals

Description

N,N'-Bis(trimethylsilyl)urea is used as a reagent for the silylation of alcohols and carboxylic acids.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
N,N′-Bis(trimethylsilyl)urea is used as a reagent for the silylation of alcohols and carboxylic acids.

Solubility
Reacts with water.

Notes
Moisture Sensitive

Specifications

Chemical Identifiers

• CAS: 18297-63-7
• Molecular Formula: C7H20N2OSi2
• Molecular Weight (g/mol): 204.42
• MDL Number: MFCD00008260
• InChI Key: MASDFXZJIDNRTR-UHFFFAOYSA-N
• Synonym: 1,3-bis trimethylsilyl urea, n,n'-bis trimethylsilyl urea, bis trimethylsilyl urea, urea, n,n'-bis trimethylsilyl, n,n'-bis-trimethylsilyl-urea, urea, 1,3-bis trimethylsilyl, bsu, urea, bis-tms, hexamethyl disilaurea
• PubChem CID: 87562
• IUPAC Name: 1,3-bis(trimethylsilyl)urea
• SMILES: C[Si](C)(C)NC(=O)N[Si](C)(C)C

• Melting Point: ∽230°C (decomposition)
• Quantity: 250 g
• Beilstein: 1937452
• Solubility Information: Reacts with water.
• Formula Weight: 204.42
• Percent Purity: ≥98%
• Sensitivity: Moisture sensitive
• Chemical Name or Material: N,N'-Bis(trimethylsilyl)urea

Safety and Handling

Hazard Category	Warning
Hazard Statement	GHS H Statement H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	GHS P Statement P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid breathing dust/fume/gas/mist/vapors/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.
EINECSNumber	242-177-9
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only