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CS-W001157 4
Total: USD 88.00

4-Bromobenzo[b]thiophene-2-carboxylic acid

  • CAS No. 5194-37-6

  • Cat. No. CS-0041386
  • Purity≥97%
  • MDL No.MFCD03407342
  • HazMat Fee +

    HazMat Fee

    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, except in the following scenarios:

    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.

4-Bromobenzo[b]thiophene-2-carboxylic acid|CS-0041386

Structure of 5194-37-6

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Description

4-Bromobenzo[b]thiophene-2-carboxylic acid features a fused heterocyclic core with a bromine substituent at the benzo position and a carboxylic acid group at the thiophene ring's 2-position. This combination delivers enhanced electronic modulation and synthetic versatility, enabling direct incorporation into cross-coupling reactions and pharmaceutical scaffolds. The molecule exhibits robust stability under standard bench conditions and facilitates efficient derivatization in medicinal chemistry workflows.

Application

4-Bromobenzo[b]thiophene-2-carboxylic acid serves as a versatile building block for the synthesis of biologically active heterocycles and pharmaceutical intermediates. Its bromine and carboxylic acid functionalities enable direct coupling reactions via Pd-catalyzed cross-coupling and derivatization to amides, esters, or acyl chlorides. The benzo[b]thiophene core provides structural rigidity and favorable pharmacokinetic properties, while the molecule exhibits good bench stability and ease of purification, facilitating integration into standard synthetic workflows.

General Information

  • CAS No. 5194-37-6
  • Cat. No. CS-0041386
  • Purity ≥97%
  • MDL No. MFCD03407342
  • Storage 4°C, protect from light
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₉H₅BrO₂S
  • Molecular Weight None
  • Synonym(s) Benzo[b]thiophene-2-carboxylic acid, 4-bromo-
  • SMILES O=C(C1=CC2=C(Br)C=CC=C2S1)O

Computational Chemistry Data

  • TPSA   37.3
  • LogP   3.362
  • H_Acceptors   2
  • H_Donors   1
  • Rotatable_Bonds   1

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS07
Signal Word : Warning
UN#: N/A
Class : N/A
Packing Group : N/A
Hazard Statements : H302-H315-H319-H335-H312-H332
Precautionary Statements : P260-P261-P264-P270-P271-P280-P301+P310-P302+P352-P304+P340-P304+P341-P305+P351+P338-P312-P330-P332+P313-P337+P313-P362+P364-P363-P403+P233-P405-P501

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