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Heterocyclic building blocks

Selectfluor

Also known as 1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate), 1-Chloromethyl-4-fluoro-1,4-diazobicyclo(2.2.2)octane bis(tetrafluoroborate), 1,4-Diazoniabicyclo(2.2.2)octane, 1-(chloromethyl)-4-fluoro-, bis(tetrafluoroborate(1-))

CAS 140681-55-6Formula C7H14B2ClF9N2Molar mass 354.26 g/molEC 414-380-4
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant 23 suppliers listed
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Selectfluor chemical structure, C7H14B2ClF9N2, CAS 140681-55-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
140681-55-6
Formula
C7H14B2ClF9N2
Molar mass
354.26 g/mol
EC number
414-380-4
HS code
293359
Category
Heterocyclic building blocks

What is Selectfluor?

Plain description, key identifiers and synonyms

Selectfluor is a chemical substance with the molecular formula C7H14B2ClF9N2 and a molar mass of 354.26 g/mol. Its CAS registry number is 140681-55-6. The IUPAC name is 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane ditetrafluoroborate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane ditetrafluoroborate
CAS number
140681-55-6 CAS number cross-checked
EC numbers
414-380-4, 640-382-1
Molecular formula
C7H14B2ClF9N2
UNII
4P1ZA6R76D
MDL number
MFCD00142607
InChIKey
TXRPHPUGYLSHCX-UHFFFAOYSA-N
InChI
InChI=1S/C7H14ClFN2.2BF4/c8-7-10-1-4-11(9,5-2-10)6-3-10;2*2-1(3,4)5/h1-7H2;;/q+2;2*-1
SMILES (canonical and isomeric)
[B-](F)(F)(F)F.[B-](F)(F)(F)F.C1C[N+]2(CC[N+]1(CC2)CCl)F

Synonyms

  • 1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)
  • 1-Chloromethyl-4-fluoro-1,4-diazobicyclo(2.2.2)octane bis(tetrafluoroborate)
  • 1,4-Diazoniabicyclo(2.2.2)octane, 1-(chloromethyl)-4-fluoro-, bis(tetrafluoroborate(1-))
  • 1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo(2.2.2)octane bis(tetrafluoroborate)
  • 1,4-Diazoniabicyclo[2.2.2]octane, 1-(chloromethyl)-4-fluoro-, bis[tetrafluoroborate(1-)]
  • F-TEDA
  • Selectfluor Fluorinating Reagent
  • 1-(Chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane Bis(tetrafluoroborate)
  • 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane, ditetrafluoroborate
  • N-Fluoro-N'-chloromethyltriethylenediamine bis(tetrafluoroborate)
  • N-Fluoro-N'-(chloromethyl)triethylenediamine Bis(tetrafluoroborate)
  • 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane tetrafluoroborate
  • 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2,2,2]octane bis(tetrafluoroborate)
  • n-fluoro-n'-chloromethyltriethylenediaminebis(tetrafluoroborate)
  • 1-(Chloromethyl)-4-fluoro-1,4-diazabicyclo[2.2.2]octane-1,4-diium tetrafluoroborate
  • F-TEDA-BF4
  • 1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octanebis(tetrafluoroborate)
  • C7H14B2ClF9N2
  • Selectflor
  • Selectflour
  • 1-(chloromethyl)4-fluoro-1,4-diazoniabicyclo(2.2.2]octane bis(tetrafluoroborate)
  • 1-(chloromethyl)4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)
  • 1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate), N-Chloromethyl-N'-fluorotriethylenediammonium bis(tetrafluoroborate), F-TEDA
  • Selectfluor i
  • 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane ditetrafluoroborate
Show all 37 synonyms
  • F-TEDA-BF4(Selectfluor)
  • N-Chloromethyl-N'-fluorotriethylenediammonium bis(tetrafluoroborate)
  • 1-(Chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octanebis(tetrafluoroborate)
  • Selectfluor(R) fluorinating reagent, >95% in F+ active
  • N-Fluoro-N'-(chloromethyl)triethylenediamine bis(tetrafluoroborate
  • N-Chloromethyl-N?-fluorotriethyle nediammonium bis(tetrafluoroborate)
  • 1-( chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)
  • 1-(chloromethyl)-4-fluoro-1,4 diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)
  • 1-(chloromethyl)-4-fluoro-1,4-diazabicyclo[2.2.2]octane-1,4-diium bis(tetrafluoroborate)
  • 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo-[2.2.2]octane bis(tetrafluoroborate)
  • 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2,2,2]octane bis(tetrafluoroborate)
  • 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octanebis-(tetrafluoroborate)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
354.26 g/molcalc.
Exact mass
354.0888 Dacalc.
LogP (octanol/water)
3.33calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
1calc.
Heavy atoms
21calc.
Rings
3calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1CN2CCN1CC2

C1CN2CCN1CC2

3 rings, 8 atoms, the Dabco ring system.

152 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H317May cause an allergic skin reaction.
  • H318Causes serious eye damage.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Selectfluor suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 23 suppliers
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Where suppliers are based

23 suppliers in 5 countries

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Selectfluor price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 005-015-00-6

United States

  • TSCA inventory (USA)
    Status: Active in US commerce, Regulatory flags: Added by a premanufacture notice

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Selectfluor is traded under.

HS 2933.59Indicative HS code

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring, other

World exports in 2024
$18.4B
+10.5% vs 2023, imports $24.8B
2019 to 2024
Top exporters
  1. Ireland43.6%
  2. Switzerland * partner reported26.3%
  3. China7.9%
Top importers
  1. Slovenia30.3%
  2. United States30.1%
  3. Germany15.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Selectfluor is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Selectfluor, based on the data on this page

What is Selectfluor?

Selectfluor is a chemical substance with the molecular formula C7H14B2ClF9N2 and a molar mass of 354.26 g/mol. Its CAS registry number is 140681-55-6. The IUPAC name is 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane ditetrafluoroborate.

What is the CAS number of Selectfluor?

The CAS registry number of Selectfluor is 140681-55-6.

What is the molecular formula and weight of Selectfluor?

The molecular formula of Selectfluor is C7H14B2ClF9N2 and its molar mass is 354.26 g/mol.

What is Selectfluor used for?

Known uses and roles of Selectfluor include building blocks in research and laboratory.

Is Selectfluor hazardous?

Selectfluor carries the GHS signal word "Danger". Main hazards: harmful if swallowed, may cause an allergic skin reaction, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Selectfluor?

Selectfluor is usually classified under HS code 293359 (Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Selectfluor?

CompoundList lists 23 suppliers of Selectfluor in China, United States, Canada, India and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Selectfluor in India?

1 supplier in India list Selectfluor on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Selectfluor?

Suppliers quote Selectfluor on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Selectfluor

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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