Boron Trifluoride Etherate

CAS Number: 109-63-7

Molecular Formula: C4H10BF3O

Purity: ≥ 47.0% to 48.5% BF3 content

Custom Lewis Acid Catalysis ServiceCatalyst Friedel-Crafts AlkylationReagent Epoxide Ring OpeningBF3 Etherate API SynthesisEsterification Catalyst Aromatic AcidsCationic Polymerization

About Boron Trifluoride Etherate

Boron trifluoride diethyl etherate (CAS No. 109-63-7) is a high-quality Lewis acid reagent and industrial chemical intermediate widely used across advanced organic synthesis, polymer chemistry, and fine chemical production in the United States. Also referred to as BF₃·OEt₂ or boron trifluoride etherate, this boron comp...

Synonyms

AC1LAPMZ
Boron fluoride etherate
ethoxyethane; trifluoroborane
borontrifluoride etherate
Boron trifluoride diethyl etherate

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Boron Trifluoride Etherate Specifications

CAS Number

109-63-7

Molecular Formula

C4H10BF3O

Molecular Weight

141.93

IUPAC Name

ethoxyethane;trifluoroborane

Canonical SMILES

B(F)(F)F.CCOCC

InChI Key

KZMGYPLQYOPHEL-UHFFFAOYSA-N

InChI

1S/C4H10O.BF3/c1-3-5-4-2;2-1(3)4/h3-4H2,1-2H3;

EINECS Number

203-689-8

HSN No

281290

CAS Number

109-63-7

Molecular Formula

C4H10BF3O

Molecular Weight

141.93

IUPAC Name

ethoxyethane;trifluoroborane

Canonical SMILES

B(F)(F)F.CCOCC

InChI Key

KZMGYPLQYOPHEL-UHFFFAOYSA-N

InChI

1S/C4H10O.BF3/c1-3-5-4-2;2-1(3)4/h3-4H2,1-2H3;

EINECS Number

203-689-8

HSN No

281290

Molecular Weight

141.93

Melting Point

-60.4°C

Boiling Point

125.7°C

Density

1.3572 g/cm³ Temp: 20°C

Purity Standard Grade

≥ 47.0% to 48.5% BF3 content

Purity Electronic/Pharma Grade

Min 49% BF3 Content

Handling

Highly Corrosive & Flammable. Use specialized PPE including acid-resistant suits, gloves, and full-face respirators. Avoid contact with glass (which it etches) and water

Pharmaceutical & Life Sciences

Used as a strong Lewis acid catalyst in alkylation, acylation, and condensation reactions for synthesizing APIs, intermediates, and complex heterocycles. Supports controlled, moisture-sensitive transformations required in regulated pharmaceutical manufacturing and process chemistry labs.

Agrochemical Manufacturing

Applied in the synthesis of herbicide, insecticide, and fungicide intermediates through electrophilic activation and carbon–carbon bond formation. Enables scalable catalytic reactions critical for U.S. crop protection production facilities.

Polymer & Advanced Materials

Functions as a catalyst in the polymerization of olefins, epoxides, and specialty resins. Used in producing high-performance polymers, elastomers, and engineered materials for automotive, aerospace, and industrial applications.

Fragrance, Flavor & Fine Chemicals

In the US specialty chemical industry, Boron Trifluoride Etherate is a preferred catalyst for esterification and isomerization processes. It enables the production of high-purity aroma chemicals and flavor compounds used in consumer staples, ensuring consistent sensory profiles and stable chemical structures in premium formulations.

Petrochemical & Fuel Additives

US energy and petrochemical refineries utilize BF3 etherate for the alkylation of hydrocarbons and the production of specialized fuel additives. Its ability to facilitate complex condensations and dehydrations helps in creating high-octane components and performance-enhancing additives that meet modern US fuel efficiency and emission standards.

Detail 1

Highly moisture-sensitive and corrosive

Detail 2

Fumes in contact with moist air, releasing hydrogen fluoride (HF) and boron-containing acids

Detail 3

Store in a cool, dry, dark area in tightly sealed, corrosion-resistant containers (e.g., steel drums with specialized liners)

Detail 4

Keep under an Inert Nitrogen Blanket

Detail 5

Recommended storage is 2°C to 8°C for long-term stability

Detail 6

Classified as Hazardous (Class 8, 3). Regulated for international sea and air freight under UN 2604.Shipping: Classified as Hazardous (Class 8, 3). Regulated for international sea and air freight under UN 2604.Shipping: Classified as Hazardous (Class 8, 3). Regulated for international sea and air freight under UN 2604.

COA

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