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
- PEG Biotin, mPEG-BiotinMW 40000 Da◐ .Made to order · 8–12 wks Item #: P164158View ProductPricing & Pack Sizes
Technical Identifiers
- PEG Aldehyde, mPEG-CH2CHOMW 10000 Da● In Stock — US warehouse, ships to EU* Item #: P164143View ProductPricing & Pack Sizes
Technical Identifiers
- PEG Aldehyde, mPEG-CH2CHOMW 40000 Da● In Stock — US warehouse, ships to EU* Item #: P164148View ProductPricing & Pack Sizes
Technical Identifiers
- Phosphate PEG, mPEG-phosphoric acidMW 1000 Da● In Stock — US warehouse, ships to EU* Item #: P164184View ProductPricing & Pack Sizes
Technical Identifiers
- Polyethylene Glycol, HO-PEG-OH≥95% MW 1000 Da● In Stock — US warehouse, ships to EU* Item #: P164198View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Hydroxy-PEG-Hydroxy
- Pomalidomide-PEG6-NH2 hydrochloride● In Stock — US warehouse, ships to EU* Item #: T287994View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[2-[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]-2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-dione;hydrochloride
- SMILES
- C1CC(=O)NC(=O)C1N2C(=O)C3=C(C2=O)C(=CC=C3)OCCOCCOCCOCCOCCOCCN.Cl
- InChIKey
- MWEFMNTVJQCCJU-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- Thalidomide - linker 12 | 4-((17-Amino-3,6,9,12,15-pentaoxaheptadecyl)oxy)-2-(2,6-dioxopiperidin-3-yl)isoindoline-1,3...
- Thalidomide-O-amido-PEG-C2-NH2 hydrochloride● In Stock — US warehouse, ships to EU* Item #: T288378View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[2-(2-aminoethoxy)ethyl]-2-[2-(2,6-dioxopiperidin-3-yl)-1,3-dioxoisoindol-4-yl]oxyacetamide;hydrochloride
- SMILES
- C1CC(=O)NC(=O)C1N2C(=O)C3=C(C2=O)C(=CC=C3)OCC(=O)NCCOCCN.Cl
- InChIKey
- IPEHZYDONNHUEO-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- Thalidomide - linker 13 | N-[2-(2-Aminoethoxy)ethyl]-2-[[2-(2,6-dioxo-3-piperidinyl)-2,3-dihydro-1,3-dioxo-1H-isoindo...
- 4-Arm PEG vinyl sulfoneSolid MW 10000 Da● In Stock — US warehouse, ships to EU* Item #: A163128View ProductPricing & Pack Sizes
Technical Identifiers
- 4-Arm PEG vinyl sulfoneMW 20000 Da● In Stock — US warehouse, ships to EU* Item #: A163129View ProductPricing & Pack Sizes
Technical Identifiers
- Succinimidyl PEG NHS, mPEG-NHSMW 10000 Da◐ .Made to order · 8–12 wks Item #: S164322View ProductPricing & Pack Sizes
Technical Identifiers
- Succinimidyl PEG NHS, mPEG-NHSMW 12000 Da● In Stock — US warehouse, ships to EU* Item #: S164323View ProductPricing & Pack Sizes
Technical Identifiers
- BocNH-PEG₆-CH₂CH₂NH₂CAS: 1091627-77-8 Formula: C19H40N2O8 Molecular Weight: 424.55● In Stock — US warehouse, ships to EU* Item #: B122202View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- tert-butyl N-[2-[2-[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl]carbamate
- SMILES
- CC(C)(C)OC(=O)NCCOCCOCCOCCOCCOCCOCCN
- InChIKey
- HYSRAUNKYCBBFY-UHFFFAOYSA-N
- InChI
- 1S/C19H40N2O8/c1-19(2,3)29-18(22)21-5-7-24-9-11-26-13-15-28-17-16-27-14-12-25-10-8-23-6-4-20/h4-17,20H2,1-3H3,(H,21,22)
- Synonyms
- C70739 | BS-14403 | SCHEMBL22939675 | tert-butyl (20-amino-3,6,9,12,15,18-hexaoxaicosyl)carbamate | Discontinued see:...
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].




