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CS-W001157 4
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2,8-Difluoro-5-(trifluoromethyl)-5H-dibenzo[b,d]thiophen-5-ium trifluoromethanesulfonate

  • CAS No. 1961266-44-3

  • Cat. No. CS-0132290
  • Purity≥97%
  • MDL No.None
  • HazMat Fee +

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    The shipment is processed through FedEx Ground under the Limited Quantity option.

    Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

    If shipping is charged to your FedEx account, the HazMat fee will be billed directly by the courier. Otherwise, the fee will be included on your invoice. To help you avoid the HazMat fee, we can package a 5g order of a class 6.1 packing group I or II material as five separate 1g units, and a 100g order of any other dangerous good as four 25g units. This packaging adjustment will be made unless you instruct otherwise on your purchase order. Below, you will find the fee schedule from FedEx for handling hazardous materials.

    Type
    HazMat Fee
    Excepted Quantity $0.00
    FedEx Limited Quantities Ground $0.00
    Hazmat Ground shipping $50.00+
    Inaccessible (Haz class 6.1 or 9), Domestic $68.00+
    Accessible (Haz class 3, 4, 5 or 8), Domestic $158.00+
    Inaccessible (Haz class 6.1 or 9), International $108.00+
    Accessible (Haz class 3, 4, 5 or 8), International $238.00+

    An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

    There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

*For research and further manufacturing use only, not for direct human use.

2,8-Difluoro-5-(trifluoromethyl)-5H-dibenzo[b,d]thiophen-5-ium trifluoromethanesulfonate|CS-0132290

Structure of 1961266-44-3

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Description

This dibenzothiophenium salt features a highly electron-deficient core stabilized by fluorinated substituents, enabling robust electrophilic reactivity in transition-metal-catalyzed couplings. The trifluoromethanesulfonate counterion ensures excellent solubility and handling under standard conditions, while the difluoro and trifluoromethyl groups confer enhanced stability and lipophilicity.

Application

2,8-Difluoro-5-(trifluoromethyl)-5H-dibenzo[b,d]thiophen-5-ium trifluoromethanesulfonate serves as a highly reactive electrophilic building block for the construction of fluorinated heterocyclic scaffolds. Its stable cationic core enables efficient arylation and cyclization reactions under mild conditions, with excellent functional group tolerance and bench stability. The triflate counterion facilitates smooth transmetalation in cross-coupling processes, making it a practical reagent for medicinal chemistry and materials science applications.

General Information

  • CAS No. 1961266-44-3
  • Cat. No. CS-0132290
  • Purity ≥97%
  • MDL No. None
  • Storage 4°C, sealed storage, away from moisture
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₁₄H₆F₈O₃S₂
  • Molecular Weight 438.31
  • Synonym(s) 2,8-Difluoro-5-(trifluoromethyl)-5H-dibenzo[b,d]thiophen-5-ium triflate
  • SMILES FC([S+]1C2=CC=C(F)C=C2C3=CC(F)=CC=C31)(F)F.O=S(C(F)(F)F)([O-])=O

Computational Chemistry Data

  • TPSA   57.2
  • LogP   5.548
  • H_Acceptors   3
  • H_Donors   0
  • Rotatable_Bonds   0

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS07
Signal Word : Warning
UN#: N/A
Class : N/A
Packing Group : N/A
Hazard Statements : H315-H319
Precautionary Statements : P261-P280-P302+P352-P362

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