Triethyloxonium Tetrafluoroborate CAS 368-39-8 Purity >98.0% (HPLC)

Short Description:

Chemical Name: Triethyloxonium Tetrafluoroborate 

CAS: 368-39-8

Purity: >98.0% (HPLC)

Appearance: White to Light Yellow Crystal Powder

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401


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368-39-8 - Description:

Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of Triethyloxonium Tetrafluoroborate (CAS: 368-39-8) with high quality. Ruifu Chemical can provide worldwide delivery, competitive price, excellent service, small and bulk quantities available. Purchase Triethyloxonium Tetrafluoroborate, Please contact:

368-39-8 - Chemical Properties:

Chemical Name Triethyloxonium Tetrafluoroborate 
Synonyms Et3OBF4; Meerwein's Reagent; Triethyloxonium Fluoroborate
Stock Status In Stock, Commercial Production  
CAS Number 368-39-8
Molecular Formula C6H15BF4O
Molecular Weight 189.99 g/mol
Melting Point 96.0~97.0℃ 
Density 1.328 g/mL at 25℃ 
Sensitive Moisture Sensitive, Heat Sensitive 
Water Solubility  Reacts 
Solubility  Soluble in Ether, Dichloromethane
Store Under Inert Gas Handle and Store Under Inert Gas
COA & MSDS Available
Origin Shanghai, China
Category   Ethylating Reagent  
Brand Ruifu Chemical

368-39-8 - Specifications:

Items Specifications Results
Appearance White to Light Yellow Crystal Powder Complies
Melting Point 96.0~97.0℃ 96.7℃
Residue on Ignition <0.10% <0.10%
Heavy Metals <20ppm 5ppm
Residual Solvents 4.0%~8.0% Diethyl Ether Solution 6.0%
Purity / Analysis Method >98.0% (HPLC) 99.5% (HPLC)
1 H NMR Spectrum Consistent with Structure Complies
Conclusion The product has been tested and complies with the given specifications
Applications A Powerful Ethylating Agent 


Package: Fluorinated Bottle, 25kg/Drum, or according to customer's requirement.
Storage Condition: Moisture Sensitive. Keep the container tightly closed and store in a cool, dry and well-ventilated warehouse away from incompatible substances. Protect from light and moisture.
Shipping: Deliver to worldwide by air, by FedEx / DHL Express. Provide fast and reliable delivery. 


Sufficient Capacity: Sufficient facilities and technicians

Professional Service: One stop purchasing service

OEM Package: Custom package and label available

Fast Delivery: If within stock, three days delivery guaranteed

Stable Supply: Maintain reasonable stock    

Technical Support: Technology solution available

Custom Synthesis Service: Ranged from grams to kilos

High Quality: Established a complete quality assurance system


How to Purchase? Please contact Dr. Alvin Huang: or 

15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals.

Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc.

Advantages? Superior quality, affordable price, professional services and technical support, fast delivery.

Quality AssuranceStrict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc.

SamplesMost products provide free samples for quality evaluation, shipping cost should be paid by customers.

Factory AuditFactory audit welcome. Please make an appointment in advance.

MOQ? No MOQ. Small order is acceptable.

Delivery Time? If within stock, three days delivery guaranteed.

TransportationBy Express (FedEx, DHL), by Air, by Sea.

Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided.

Custom SynthesisCan provide custom synthesis services to best fit your research needs.

Payment TermsProforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc. 

368-39-8 - Risk and Safety:

Hazard Symbols C - Corrosive
Risk Codes R34 - Causes burns
R40 - Limited evidence of a carcinogenic effect
R14 - Reacts violently with water
R67 - Vapors may cause drowsiness and dizziness
R37 - Irritating to the respiratory system
Safety Description S23 - Do not breathe vapour.
S24/25 - Avoid contact with skin and eyes.
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S22 - Do not breathe dust.
UN IDs UN 3265 8/PG 2
WGK Germany 2
RTECS RR4584700
HS Code 2942000000
Hazard Note Corrosive
Hazard Class 4.1
Packing Group II
Toxicity dnd-smc 500 mmol/L CPBTAL 23,2485,75

368-39-8 - Application:

Triethyloxonium Tetrafluoroborate (CAS: 368-39-8) is used as a powerful alkylating agent, especially for ethylation. It is used for the modification of carboxyl residues in proteins. It is involved in the preparation of μ-amino esters from lactams. It is also alkylating agent for nucleophilic functional groups in organic synthesis.

368-39-8 - Safety Profile:

Triethyloxonium tetrafluoroborate is a powerful ethylating agent, although the hazards are diminished because it is non-volatile. It releases strong acid upon contact with water. When heated to decomposition it emits toxic vapors of boronand Fí. Mutation data reported.    

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