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CS-W001157 4
Total: USD 88.00

Methyl-PEG3-bromide

  • CAS No. 72593-77-2

  • Cat. No. CS-0145864
  • Purity≥97%
  • MDL No.MFCD00956116
  • 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.

Methyl-PEG3-bromide|CS-0145864

Structure of 72593-77-2

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Description

Methyl-PEG3-bromide is a water-soluble, bench-stable reagent featuring a reactive bromide terminus and a hydrophilic PEG3 spacer. This compound enables efficient conjugation in aqueous media, facilitating the attachment of functional groups to biomolecules or surfaces without aggregation. Ideal for bioconjugation workflows requiring controlled chain length and enhanced solubility.

Application

Methyl-PEG3-bromide serves as a versatile bifunctional linker for conjugation chemistry, enabling efficient attachment of PEGylated moieties to nucleophilic functional groups. Its terminal bromide facilitates reliable coupling with amines, thiols, and other soft nucleophiles under mild conditions, while the methyl terminus ensures stability and minimizes undesired side reactions. This reagent is widely used in the synthesis of PEGylated drug candidates, bioconjugates, and surface-modified nanoparticles due to its excellent solubility, predictable reactivity, and compatibility with standard synthetic workflows.

General Information

  • CAS No. 72593-77-2
  • Cat. No. CS-0145864
  • Purity ≥97%
  • MDL No. MFCD00956116
  • Storage 4°C
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₇H₁₅BrO₃
  • Molecular Weight 227.10
  • Synonym(s) None
  • SMILES COCCOCCOCCBr

Computational Chemistry Data

  • TPSA   27.69
  • LogP   1.0609
  • H_Acceptors   3
  • H_Donors   0
  • Rotatable_Bonds   8

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-H335
Precautionary Statements : P261-P264-P271-P280-P302+P352-P304+P340-P362+P364-P405-P501

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