Navigate small molecules by ligand family or scaffold to build focused sets and explore structure–activity relationships. This category groups related chemotypes, helping you select analogs, fragments, and tool molecules for discovery research.
Ligand families
Products
- Maleimide PEG Hydroxy, Maleimide PEG OHMW 5000 Da● In Stock — US warehouse, ships to EU* Item #: M163898View ProductPricing & Pack Sizes
Technical Identifiers
- Maleimide PEG Hydroxy, Maleimide PEG OHMW 2000 Da● In Stock — US warehouse, ships to EU* Item #: M163896View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Maleimide-PEG-OH
- Maleimide PEG Maleimide, MAL-PEG-MALMW 10000 Da● In Stock — US warehouse, ships to EU* Item #: M163900View ProductPricing & Pack Sizes
Technical Identifiers
- Maleimide PEG Acid, MAL-PEG-COOH≥95% MW 10000 Da◐ .Made to order · 8–12 wks Item #: M163877View ProductPricing & Pack Sizes
Technical Identifiers
- Maleimide PEG Maleimide, MAL-PEG-MALMW 3400 Da◐ .Made to order · 8–12 wks Item #: M163903View ProductPricing & Pack Sizes
Technical Identifiers
- Maleimide PEG NHS, MAL-PEG-NHSMW 10000 Da● In Stock — US warehouse, ships to EU* Item #: M163909View ProductPricing & Pack Sizes
Technical Identifiers
- Maleimide PEG NHS, MAL-PEG-NHSSolid MW 2000 Da● In Stock — US warehouse, ships to EU* Item #: M163910View ProductPricing & Pack Sizes
Technical Identifiers
- Maleimide PEG PFP, MAL-PEG-PFPMW 5000 Da◐ .Made to order · 8–12 wks Item #: M163919View ProductPricing & Pack Sizes
Technical Identifiers
- Maleimide PEG PFP, MAL-PEG-PFPMW 20000 Da◐ .Made to order · 8–12 wks Item #: M163917View ProductPricing & Pack Sizes
Technical Identifiers
- Maleimide PEG PFP, MAL-PEG-PFPMW 10000 Da◐ .Made to order · 8–12 wks Item #: M163915View ProductPricing & Pack Sizes
Technical Identifiers
- Maleimide PEG, mPEG-MALMW 5000 Da● In Stock — US warehouse, ships to EU* Item #: M163928View ProductPricing & Pack Sizes
Technical Identifiers
- NHS-PEG-NHS● In Stock — US warehouse, ships to EU* Item #: N164055View ProductPricing & Pack Sizes
Technical Identifiers
Fast Shipping Same-day shipping on in-stock items
Technical Details Quality & specification info on every product page
Pack Size Options Multiple packaging sizes with pricing access from listing
R&D Use Only Products supplied for research and development use
Frequently Asked Questions
What should I consider when selecting Ligand families?
When selecting Ligand families, consider the metal precursor, substrate class, and whether the reaction is sensitive to air or moisture. Ligand-to-metal ratio and preformed versus in-situ complex formation often matter as much as the ligand identity.
What does Ligand families cover?
Ligand families is a top-level listing in our catalogue. Use the filters and search on the listing page to narrow by the attributes that matter for your work, or browse the neighbouring categories from the main navigation.
Which data should I check before ordering Ligand families?
Check assay purity for the Ligand families lot, chiral purity where applicable, and appearance, and confirm storage temperature and atmosphere. Oxidised ligand is a common and easily missed cause of failed catalysis. All products are supplied for professional research and development use only, and are not for use in humans, animals, diagnostics, or therapy.
Can I search Ligand families by structure or chirality?
Yes — filter Ligand families by ligand class and chirality, and search by CAS number or SMILES. For preformed metal complexes, bulk quantities, or ligands not listed, contact [email protected].

