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Lipid PEG

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Catalog No.	Name	M.W.	Purity
In stock BPG-4908 CAS: 53467-81-5	mPEG-Palmitic acid, MW 2K	N/A	>99%
In stock BPG-4896	DMG-PEG-NHS, MW2K	N/A	N/A
In stock BPG-4577	17-(Amino-PEG9-ethylcarbamoyl)heptadecanoic t-butyl ester	809.1	0.95
In stock BPG-4576	9-(Amino-PEG9-ethylcarbamoyl)nonanoic t-butyl ester	696.9	0.97
In stock BPG-4575	17-(Amino-PEG6-ethylcarbamoyl)heptadecanoic t-butyl ester	677	0.97
In stock BPG-4574	16-(Amine-PEG6-ethylcarbamoyl)pentadecanoic-t-butyl ester	648.9	0.95
In stock BPG-4573	16-(Amine-PEG4-ethylcarbamoyl)pentadecanoic-t-butyl ester	560.8	0.95
In stock BPG-4572	20-(Amine-PEG3-ethylcarbamoyl)nonadecanoic-t-butyl ester	572.9	0.95
In stock BPG-4571	18-(Amine-PEG3-ethylcarbamoyl)heptadecanoic-t-butyl ester	544.8	0.95
In stock BPG-4570	16-(Amine-PEG3-ethylcarbamoyl)pentadecanoic-t-butyl ester	516.8	0.95
In stock BPG-4569	14-(Amine-PEG6-ethylcarbamoyl)tridecanoic-t-butyl ester	620.9	0.95
In stock BPG-4568	Amine-PEG5-c18-t-butyl ester	661	0.98
In stock BPG-4567	14-(Amine-PEG5-ethylcarbamoyl)tridecanoic-t-butyl ester	576.8	0.95
In stock BPG-4566	14-(Amine-PEG4-ethylcarbamoyl)tridecanoic t-butyl ester	532.8	0.95
In stock BPG-4565	14-(Amine-PEG3-ethylcarbamoyl)tridecanoic t-butyl ester	488.7	0.95
In stock BPG-4686	Stearic acid-PEG-Rhodamine, MW 1K-5K	N/A	N/A
In stock BPG-4685	Stearic acid-PEG-NHS, MW 1K-5K	N/A	N/A
In stock BPG-4684	Stearic acid-PEG-Mal, MW 1K-5K	N/A	N/A
In stock BPG-4683	Stearic acid-PEG-FITC, MW 1K-5K	N/A	N/A
In stock BPG-4682	Stearic acid-PEG-CH2CO2H, MW 1K-5K	N/A	N/A

Amine-PEG-aliphatic-t-butyl ester ¹³
Azide-PEG-aliphatic-t-butyl ester ¹²
Bromoacetamido-PEG-aliphatic-acid ¹⁶
Bromoacetamido-PEG-aliphatic-t-butyl ester ¹⁷
DMG-PEG ⁹
DOPE-PEG-Amine ²
DSPE-PEG-Aldehyde ¹
DSPE-PEG-DBCO ²
Functionalized PEG Lipids ¹⁴
mPEG Ceramides ¹
mPEG Glycerides ¹
mPEG Phospholipids ¹¹
mPEG Sterols ¹
mPEG-DOPE ²
Small-molecule Lipid PEG ⁷

BOC Sciences offers PEG-lipid products combining polyethylene glycol with lipid anchors such as DSPE, DOPE, DMG, and cholesterol. Selected products include reactive terminal groups, affinity tags, fluorescent labels, or ligands for research involving lipid assemblies and surface functionalization.

Compare lipid anchor identity, PEG molecular weight, and terminal functionality to identify products that match the composition and downstream modification requirements of your research system.

Browse PEG Lipids by Lipid Anchor

PEG-lipid products combine a lipid component with a PEG segment and, in selected products, an additional terminal group, label, or ligand. Lipid identity, PEG molecular weight, and terminal functionality are product-specific.

Product formats vary in lipid anchor, PEG molecular weight, terminal chemistry, and any preinstalled label or ligand. DSPE-PEG, DOPE-PEG, DMG-PEG, and cholesterol-PEG should therefore be evaluated by their complete structures and not by the PEG segment alone.

DSPE-PEG DSPE-PEG formats are available with terminal groups and labels for research involving lipid assembly, surface presentation, and functionalized lipid systems. DSPE-PEG-Biotin DSPE-PEG-COOH DSPE-PEG-MAL DSPE-PEG-NH2 DSPE-PEG-NHS
DOPE-PEG DOPE-PEG derivatives include reactive and fluorescent terminal formats for formulation research and lipid-associated labeling. DOPE-PEG-Amine DOPE-PEG-Azide DOPE-PEG-DBCO DOPE-PEG-Maleimide DOPE-PEG-FITC
DMG-PEG DMG-PEG is a PEG-lipid family with a dimyristoyl glycerol anchor. Review the individual product specification for PEG size and composition. DMG-PEG
Cholesterol-PEG Cholesterol-PEG products combine a cholesterol anchor with selected terminal groups, tags, or reporter functions. Cholesterol-PEG-Amine Cholesterol-PEG-Azide Cholesterol-PEG-DBCO Cholesterol-PEG-MAL Cholesterol-PEG-NHS
Other Lipid-Anchored PEG Formats Additional lipid-PEG products include fluorescent, affinity-tagged, ligand-bearing, and other functionalized derivatives. Available formats vary by anchor and terminal chemistry. Small-molecule Lipid PEG

Selecting a PEG-Lipid Product

Selection depends on the lipid anchor, PEG segment specification, terminal functionality, and the intended formulation or surface-modification context.

For formulation-related studies, consider how the anchor fits the other lipid components and the intended assembly process. For conjugation or ligand-display studies, also confirm that the terminal group is chemically available and compatible with the planned modification conditions.

Lipid Anchor Identity Compare DSPE, DOPE, DMG, and cholesterol anchors according to the lipid composition and assembly strategy of the research system.
PEG Molecular Weight Review the stated PEG molecular weight and whether it describes the PEG segment or the complete conjugate. Do not assume identical MW options across different lipid anchors.
Terminal Functional Group Select amine, carboxyl, NHS ester, maleimide, azide, DBCO, thiol, or another listed group according to the intended downstream coupling reaction.
Label or Ligand Function Biotin, fluorophores, folate, and other preinstalled modules serve distinct roles. Confirm whether the product includes a reactive terminus in addition to the tag or ligand.

Applications of PEG-Lipid Products

PEG-lipid reagents are used in research designs where a lipid anchor and PEG segment are incorporated into lipid assemblies or surface-functionalized systems.

The role of a PEG-lipid depends on both the lipid anchor and the PEG terminus. Unfunctionalized PEG-lipids, reactive PEG-lipids, and reporter- or ligand-bearing products serve different purposes and should not be treated as equivalent.

Liposome Research PEG-lipids can be incorporated into lipid formulations to investigate surface PEG presentation and the behavior of PEG-containing liposomal systems.
Lipid Nanoparticle Research Selected PEG-lipid structures are used in lipid nanoparticle formulation studies. Anchor identity and PEG characteristics should be evaluated in the context of the complete lipid composition.
Ligand and Affinity Display Terminally functionalized PEG-lipids provide handles or preinstalled tags for evaluating ligand, affinity, or reporter presentation on lipid assemblies.
Fluorescent Lipid Tracking Fluorophore-bearing PEG-lipids support research workflows involving visualization or tracking of lipid-associated structures, subject to label and formulation compatibility.

Comparing PEG-Lipid Product Features

The following distinctions help identify the specifications that matter for a particular PEG-lipid selection.

DSPE, DOPE, DMG, and cholesterol anchors differ in their chemical structures and formulation context. Selection should be based on the intended lipid system and product-specific information rather than assuming that one anchor can directly replace another.

Lipid Anchor DSPE, DOPE, DMG, and cholesterol represent different lipid components; they are not interchangeable anchor names.
PEG Segment PEG molecular weight and molecular-weight distribution influence the size of the PEG portion and should be checked for each catalog item.
Terminal Functionality Reactive groups such as NHS ester, maleimide, azide, and DBCO support different downstream coupling routes.
Preinstalled Functional Modules Biotin, folate, and fluorescent labels provide affinity, ligand, or reporter functions and should be distinguished from reactive terminal groups.

Advantages of PEG-Lipid Product Options

Different lipid anchors and PEG terminal formats provide options for designing and comparing PEG-containing lipid systems.

The combination of a lipid anchor and PEG segment creates a modular product format. Depending on the catalog item, additional terminal groups or preinstalled modules can provide options for further conjugation, affinity capture, fluorescent tracking, or ligand presentation.

Multiple Lipid Anchors: DSPE, DOPE, DMG, and cholesterol-linked formats offer different lipid structures for formulation research.
Variable PEG Specifications: Available PEG molecular weights allow comparison of PEG segment size across selected products.
Functional Terminal Groups: Reactive groups support further conjugation or functionalization when compatible with the selected system.
Preinstalled Labels and Ligands: Selected products include biotin, fluorophores, or ligands for defined research purposes.

Product Specifications and Documentation

PEG-lipid specifications vary by anchor, PEG segment, and terminal modification. Review the complete product structure and catalog-specific documentation.

For PEG-lipids, verify whether the stated molecular weight refers to the PEG segment or the complete conjugate. Also review the exact lipid identity, linker structure, terminal group, label, and any available analytical characterization.

Lipid and PEG Identity Confirm the lipid anchor and PEG segment, including any additional linker or conjugated module.
Terminal Group or Label Identify whether the product contains a reactive group, affinity tag, fluorophore, or ligand.
Molecular Weight and Purity Review the stated molecular-weight basis, purity, and available analytical data.
Storage and Handling Follow the product-specific storage and handling instructions.

PEG Product Options from BOC Sciences

PEG-lipid product options include multiple lipid anchors, PEG specifications, and terminal modifications for research use.

The PEG-lipid portfolio includes multiple anchor families and functionalized formats. Product selection can be based on lipid identity, PEG molecular weight, terminal functionality, and the required label or ligand, with product-specific specifications used to confirm suitability.

Multiple Anchor Families: DSPE-, DOPE-, DMG-, and cholesterol-linked PEG products.
Functionalized Options: Selected amine, carboxyl, NHS ester, maleimide, click, and thiol formats.
Tagged and Labeled Products: Selected biotin, fluorophore, and ligand-bearing derivatives.
Related PEG Portfolio: Access to PEG copolymers, multi-arm PEG, and functionalized PEG products.

Frequently Asked Questions

Still have questions?

What is a PEG-lipid?
A PEG-lipid is a conjugate containing a lipid anchor linked to a polyethylene glycol segment. Some products also carry a reactive terminal group, label, or ligand.
Which PEG-lipid anchors are available?
The listed PEG-lipid families include DSPE-PEG, DOPE-PEG, DMG-PEG, and cholesterol-PEG. Product availability and specifications vary by family.
Are PEG-lipids the same as phospholipids?
No. PEG-lipids are PEG-containing lipid conjugates. The broader Lipids category includes phospholipids and many other lipid products that may not contain PEG.
How do I choose between DSPE-PEG and DOPE-PEG?
Compare the lipid anchor in relation to the lipid composition and formulation being studied, then review PEG molecular weight and terminal functionality. The two anchors should not be treated as interchangeable.
Do all PEG-lipids have a reactive terminal group?
No. Some PEG-lipids are unfunctionalized or carry a preinstalled tag or ligand. Check the full product structure to identify any additional reactive group.
What PEG molecular weights are available?
PEG molecular-weight options depend on the lipid anchor and individual product. Consult the relevant catalog listing for the stated MW and its specification basis.
Are fluorescent PEG-lipids available?
The catalog includes fluorescent formats such as FITC-, Cy3-, Cy5-, rhodamine-, and other fluorophore-bearing PEG-lipids. Confirm the specific lipid anchor and label combination in the product listing.
Can PEG-lipids be customized?
Custom PEG-lipid requirements can be submitted with the target lipid anchor, PEG specification, terminal group or label, quantity, and analytical requirements.

Custom PEG Products

Custom PEG-lipid requests may specify the lipid anchor, PEG molecular weight, terminal functional group, label or ligand, and required analytical information.

Discuss custom PEG derivative synthesis for project-specific structures, terminal groups, compositions, or molecular-weight requirements.

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