1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 97+%, Thermo Scientific Chemicals

Product Code	Brand	Quantity	Packaging
10076383	Thermo Scientific Acros 382960010	1 g	Glass bottle
10136993	Thermo Scientific Acros 382960050	5 g	Glass bottle
11915861	Thermo Scientific Acros 382960250	25 g	Glass bottle

Description

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

Chemical Identifiers

• CAS: 761446-44-0
• Molecular Weight (g/mol): 208.07
• InChI Key: UCNGGGYMLHAMJG-UHFFFAOYSA-N
• PubChem CID: 2773987

• Molecular Formula: C10H17BN2O2
• MDL Number: MFCD03789259
• Synonym: 1-methyl-4-4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl-1h-pyrazole, 1-methylpyrazole-4-boronic acid pinacol ester, 1-methyl-4-4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl pyrazole, 1-methyl-1h-pyrazole-4-boronic acid pinacol ester, 1-methyl-4-tetramethyl-1,3,2-dioxaborolan-2-yl-1h-pyrazole, 1-methyl-pyrazole-4-boronic acid pinacol ester, 1-methyl-4-4,4,5,5-tetramethyl-1,3,2 dioxaborolan-2-yl-1h-pyrazole, 1h-pyrazole, 1-methyl-4-4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl, 1-methyl-4-tetramethyl-1,3,2-dioxaborolan-2-yl pyrazole, 1-methyl-4-pyrazoleboronic acid pinacol ester
• SMILES: CN1C=C(C=N1)B1OC(C)(C)C(C)(C)O1

Specifications

• CAS: 761446-44-0
• CAS Max %: 100.0
• Color: White to Yellow
• Assay Percent Range: 97% min. (GC)
• MDL Number: MFCD03789259
• InChI Key: UCNGGGYMLHAMJG-UHFFFAOYSA-N
• IUPAC Name: 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole
• PubChem CID: 2773987
• Percent Purity: 97+%
• Chemical Name or Material: 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

• CAS Min %: 97.0
• Melting Point: 62.0°C to 65.0°C
• Infrared Spectrum: Authentic
• Molecular Formula: C10H17BN2O2
• Synonym: 1-methyl-4-4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl-1h-pyrazole, 1-methylpyrazole-4-boronic acid pinacol ester, 1-methyl-4-4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl pyrazole, 1-methyl-1h-pyrazole-4-boronic acid pinacol ester, 1-methyl-4-tetramethyl-1,3,2-dioxaborolan-2-yl-1h-pyrazole, 1-methyl-pyrazole-4-boronic acid pinacol ester, 1-methyl-4-4,4,5,5-tetramethyl-1,3,2 dioxaborolan-2-yl-1h-pyrazole, 1h-pyrazole, 1-methyl-4-4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl, 1-methyl-4-tetramethyl-1,3,2-dioxaborolan-2-yl pyrazole, 1-methyl-4-pyrazoleboronic acid pinacol ester
• SMILES: CN1C=C(C=N1)B1OC(C)(C)C(C)(C)O1
• Molecular Weight (g/mol): 208.07
• Formula Weight: 208.07
• Physical Form: Crystals

Safety and Handling

GHS H Statement
Causes serious eye irritation.
Causes skin irritation.
May cause respiratory irritation.

GHS P Statement
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF ON SKIN: Wash with plenty of soap and water.
IF IN EYES: Rinse cautiously with water for

GHS Signal Word: Warning

Product Identifier

• 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Signal Word

• Warning

Hazard Category

• Serious eye damage/eye irritation Category 2
• Skin corrosion/irritation Category 2
• Specific target organ toxicity Category 3

Hazard Statement

• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.
• H315-Causes skin irritation.

Precautionary Statement

• P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P302+P352-IF ON SKIN: Wash with plenty of water/.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

RUO – Research Use Only