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CS-W001157 4
Total: USD 88.00

Propargyl-PEG3-bromide

  • CAS No. 203740-63-0

  • Cat. No. CS-0114882
  • Purity≥97%
  • MDL No.MFCD28505517
  • 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.

Propargyl-PEG3-bromide|CS-0114882

Structure of 203740-63-0

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Description

Propargyl-PEG3-bromide features a terminal alkyne group flanked by a triethylene glycol spacer, enabling efficient copper-catalyzed azide-alkyne cycloaddition (CuAAC) for bioconjugation. This water-soluble linker combines orthogonal reactivity with excellent stability under physiological conditions, facilitating site-specific labeling in complex biological systems.

Application

Propargyl-PEG3-bromide serves as a versatile bifunctional building block for bioconjugation and polymer synthesis. The terminal alkyne enables efficient copper-catalyzed azide-alkyne cycloaddition (CuAAC), while the primary bromide facilitates nucleophilic substitution reactions. Its PEG3 spacer provides enhanced solubility and reduced aggregation, making it ideal for labeling peptides, proteins, and functional materials with minimal steric interference.

General Information

  • CAS No. 203740-63-0
  • Cat. No. CS-0114882
  • Purity ≥97%
  • MDL No. MFCD28505517
  • Storage 4°C, stored under nitrogen, away from moisture
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₉H₁₅BrO₃
  • Molecular Weight 251.12
  • Synonym(s) None
  • SMILES C#CCOCCOCCOCCBr

Computational Chemistry Data

  • TPSA   27.69
  • LogP   1.0643
  • H_Acceptors   3
  • H_Donors   0
  • Rotatable_Bonds   9

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
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501

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