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Ligand

Ligands for coordination chemistry, catalysis, and complex formation. Browse phosphines, nitrogen ligands, chelators, and related compounds (where available), and compare structure and handling notes to match your metal and conditions.

Browse by type, application, or key specifications such as purity, grade, packaging, and handling requirements.

2,152 products
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⚖️ Asymmetric Catalysis ⚗️ Phosphine Catalysis 🎯 Ligand Screening
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Buchwald Ligands

19

Browse Buchwald ligands used in palladium-catalyzed cross-coupling and amination chemistry. Compare ligand options that help tune reactivity, selectivity, and substrate scope.

Explore Buchwald Ligands →

Chiral Ligands

978

Explore chiral ligands for asymmetric catalysis and enantioselective synthesis. This page helps you compare ligand classes used to control stereochemical outcomes in reaction development.

Explore Chiral Ligands →

NHC Ligands and Complexes

38

Find NHC ligands and complexes for cross-coupling, metathesis, and organometallic synthesis. Review carbene-based systems used in modern catalytic method development.

Explore NHC Ligands and Complexes →

Phosphine Ligands

841

Browse phosphine ligands for coordination chemistry, catalysis, and cross-coupling workflows. Use this page to compare ligand families that influence catalyst performance and selectivity.

Explore Phosphine Ligands →

Popular Products

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Showing 1-12 of 2,152

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  1. 1,3-Bis[2,6-bis(1-ethylpropyl)phenyl]imidazolium chloride
    Wish List Compare
    1,3-Bis[2,6-bis(1-ethylpropyl)phenyl]imidazolium chloride
    CAS: 1157867-61-2 Formula: C35H53ClN2 Molecular Weight: 537.26
    Solid ≥98%
    In Stock Item #: B281478
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    Technical Identifiers
    IUPAC Name
    1,3-bis[2,6-di(pentan-3-yl)phenyl]imidazol-1-ium;chloride
    SMILES
    CCC(CC)C1=C(C(=CC=C1)C(CC)CC)N2C=C[N+](=C2)C3=C(C=CC=C3C(CC)CC)C(CC)CC.[Cl-]
    InChIKey
    ODQOSTRWDUNLQB-UHFFFAOYSA-M
    InChI
    1S/C35H53N2.ClH/c1-9-26(10-2)30-19-17-20-31(27(11-3)12-4)34(30)36-23-24-37(25-36)35-32(28(13-5)14-6)21-18-22-33(35)29(15-7)16-8;/h17-29H,9-16H2,1-8H3;show more
    Synonyms
    MFCD27978383 | 1,3-bis[2,6-di(pentan-3-yl)phenyl]imidazol-1-ium;chloride | EN300-7481966 | C35H53ClN2 | F11584 | 1,3-...
  2. Diphenyliodonium Hexafluoroarsenate - 97%, used for , CAS No. 62613-15-4, by Aladdin Scientific
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    Diphenyliodonium Hexafluoroarsenate
    CAS: 62613-15-4 PubChem CID: 2737135 Formula: C12H10AsF6I Molecular Weight: 470.03
    ≥97%
    Out of Stock Item #: D155108
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    Technical Identifiers
    IUPAC Name
    diphenyliodanium;hexafluoroarsenic(1-)
    SMILES
    C1=CC=C(C=C1)[I+]C2=CC=CC=C2.F[As-](F)(F)(F)(F)F
    InChIKey
    KFGZTBBPOZNSHA-UHFFFAOYSA-N
    InChI
    1S/C12H10I.AsF6/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12;2-1(3,4,5,6)7/h1-10H;/q+1;-1
    Synonyms
    diphenyliodanium; hexakis(fluoranyl)arsenic(1-) | AKOS015832922 | SCHEMBL9812124 | T71142 | Diphenyliodonium hexafluo...
  3. Dibutyldimethoxytin
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    Dibutyldimethoxytin
    CAS: 1067-55-6 Formula: C10H24O2Sn Molecular Weight: 295.01
    ≥95%
    In Stock Item #: D155018
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    Technical Identifiers
    IUPAC Name
    dibutyl(dimethoxy)stannane
    SMILES
    CCCC[Sn](CCCC)(OC)OC
    InChIKey
    ZXDVQYBUEVYUCG-UHFFFAOYSA-N
    InChI
    1S/2C4H9.2CH3O.Sn/c2*1-3-4-2;2*1-2;/h2*1,3-4H2,2H3;2*1H3;/q;;2*-1;+2
    Synonyms
    Di-n-Butyl tin methoxide | dibutyltin(2+);methanolate | Dibutyldimethoxytin, technical, >=90% Sn basis | Dimethoxydib...
  4. Zirconium aminobenzenedicarboxylate MOF (UiO-66-BDC-NH2, BDC-NH2:Zr=0.9-1.0) - 0.8nm-1.1nm, particle size 800nm-3um, CAS No. 1260119-00-3 by
    Wish List Compare
    Zirconium aminobenzenedicarboxylate MOF (UiO-66-BDC-NH2, BDC-NH2:Zr=0.9-1.0)
    CAS: 1260119-00-3 PubChem CID: 164886345 Formula: C48H34N6O32Zr6 Molecular Weight: 1754.15
    Solid 0.8nm-1.1nm, particle size 800nm-3um
    In Stock Item #: Z282601
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    Technical Identifiers
    IUPAC Name
    2-aminoterephthalic acid;zirconium;octahydrate
    SMILES
    C1=CC(=C(C=C1C(=O)O)N)C(=O)O.C1=CC(=C(C=C1C(=O)O)N)C(=O)O.C1=CC(=C(C=C1C(=O)O)N)C(=O)O.C1=CC(=C(C=C1C(=O)O)N)C(=O)O.C1=CC(=C(C=C1C(=O)O)N)C(=O)O.C1=CCshow more
    InChIKey
    NVQXJDDKUVIYOG-UHFFFAOYSA-N
    InChI
    1S/6C8H7NO4.8H2O.6Zr/c6*9-6-3-4(7(10)11)1-2-5(6)8(12)13;;;;;;;;;;;;;;/h6*1-3H,9H2,(H,10,11)(H,12,13);8*1H2;;;;;;
  5. Zinc 2-methylimidazole MOF (ZIF-8) - ZN= 28-30WT% CAS No(59061-53-9) by Aladdin Scientific
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    Zinc 2-methylimidazole MOF (ZIF-8)
    CAS: 59061-53-9 EC Number: 620-954-7 PubChem CID: 15245636 Formula: C8H10N4Zn Molecular Weight: 227.58
    Solid ZN= 28-30WT%
    In Stock Item #: Z282555
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    Technical Identifiers
    IUPAC Name
    zinc;2-methylimidazol-3-ide
    SMILES
    CC1=NC=C[N-]1.CC1=NC=C[N-]1.[Zn+2]
    InChIKey
    MFLKDEMTKSVIBK-UHFFFAOYSA-N
    InChI
    1S/2C4H5N2.Zn/c2*1-4-5-2-3-6-4;/h2*2-3H,1H3;/q2*-1;+2
  6. Hexakis[μ-(2-amino-1,4-benzenedicarboxylato)][tetra-μ-hydroxyocta-μ-oxooctatitanium], NH2-MIL-125(Ti)
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    Hexakis[μ-(2-amino-1,4-benzenedicarboxylato)][tetra-μ-hydroxyocta-μ-oxooctatitanium], NH2-MIL-125(Ti)
    CAS: 1309760-94-8 PubChem CID: 154703048 Formula: C48H34N6O36Ti8 Molecular Weight: 1653.74
    Reagent Grade ? General reagent-grade purity suitable for most laboratory work. Use as a dependable default when no specific higher grade is required.
    In Stock Item #: H282370
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    Technical Identifiers
    IUPAC Name
    2-aminoterephthalate;oxygen(2-);titanium(4+);tetrahydroxide
    SMILES
    C1=CC(=C(C=C1C(=O)[O-])N)C(=O)[O-].C1=CC(=C(C=C1C(=O)[O-])N)C(=O)[O-].C1=CC(=C(C=C1C(=O)[O-])N)C(=O)[O-].C1=CC(=C(C=C1C(=O)[O-])N)C(=O)[O-].C1=CC(=C(Cshow more
    InChIKey
    JMUQHBVQFASBBK-UHFFFAOYSA-A
    InChI
    1S/6C8H7NO4.4H2O.8O.8Ti/c6*9-6-3-4(7(10)11)1-2-5(6)8(12)13;;;;;;;;;;;;;;;;;;;;/h6*1-3H,9H2,(H,10,11)(H,12,13);4*1H2;;;;;;;;;;;;;;;;/q;;;;;;;;;;8*-2;8*show more
  7. 4,16-Dibromo[2.2]paracyclophane
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    4,16-Dibromo[2.2]paracyclophane
    CAS: 96392-77-7 Formula: C16H14Br2 Molecular Weight: 366.1
    ≥98%
    In Stock Item #: D281431
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    Technical Identifiers
    IUPAC Name
    5,11-dibromotricyclo[8.2.2.24,7]hexadeca-1(12),4,6,10,13,15-hexaene
    SMILES
    C1CC2=C(C=C(CCC3=C(C=C1C=C3)Br)C=C2)Br
    InChIKey
    QDMAXRJHDMKTQH-UHFFFAOYSA-N
    InChI
    1S/C16H14Br2/c17-15-9-11-1-5-13(15)8-4-12-2-6-14(7-3-11)16(18)10-12/h1-2,5-6,9-10H,3-4,7-8H2
    Synonyms
    5,11-Dibromotricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaene
  8. Catechol - Standard for GC, ≥99.5%(GC) CAS No(120-80-9) by Aladdin Scientific
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    Catechol
    CAS: 120-80-9 EC Number: 204-427-5 Formula: C6H6O2 Molecular Weight: 110.11
    Solid Standard for GC ? GC reference standard — characterized compound for calibrating GC methods. Use to build calibration curves and verify GC quantitation. ≥99.5%(GC)
    In Stock Item #: C110639
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    Technical Identifiers
    IUPAC Name
    benzene-1,2-diol
    SMILES
    C1=CC=C(C(=C1)O)O
    InChIKey
    YCIMNLLNPGFGHC-UHFFFAOYSA-N
    InChI
    1S/C6H6O2/c7-5-3-1-2-4-6(5)8/h1-4,7-8H
    Synonyms
    Pyrocatechol 1,2-Benzenediol 1,2-Dihydroxybenzene
  9. 2-(Phenylthio)-N-[2-(pyrrolidin-1-yl)ethyl]ethan-1-amine - 95%, used for , CAS No. 1494801-76-1, by Aladdin Scientific
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    2-(Phenylthio)-N-[2-(pyrrolidin-1-yl)ethyl]ethan-1-amine
    CAS: 1494801-76-1 PubChem CID: 112722440 Formula: C14H22N3S Molecular Weight: 250.4
    ≥95%
    Out of Stock Item #: P281628
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    Technical Identifiers
    IUPAC Name
    N-(2-phenylsulfanylethyl)-2-pyrrolidin-1-ylethanamine
    SMILES
    C1CCN(C1)CCNCCSC2=CC=CC=C2
    InChIKey
    HFHFGIYGEBDJAA-UHFFFAOYSA-N
    InChI
    1S/C14H22N2S/c1-2-6-14(7-3-1)17-13-9-15-8-12-16-10-4-5-11-16/h1-3,6-7,15H,4-5,8-13H2
  10. 1,2-Ethanediamine, N,N'-dimethyl-N,N'-bis（2-pyridinylmethyl）
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    1,2-Ethanediamine, N,N'-dimethyl-N,N'-bis（2-pyridinylmethyl）
    CAS: 136768-57-5 Formula: C16H22N4 Molecular Weight: 270.37
    Liquid ≥97%
    In Stock Item #: E299868
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    Technical Identifiers
    IUPAC Name
    N,N'-dimethyl-N,N'-bis(pyridin-2-ylmethyl)ethane-1,2-diamine
    SMILES
    CN(CCN(C)CC1=CC=CC=N1)CC2=CC=CC=N2
    InChIKey
    NJAHJMGPPKJUTO-UHFFFAOYSA-N
    InChI
    1S/C16H22N4/c1-19(13-15-7-3-5-9-17-15)11-12-20(2)14-16-8-4-6-10-18-16/h3-10H,11-14H2,1-2H3
    Synonyms
    DTXSID60452268 | 1,2-Ethanediamine, N1,N2-dimethyl-N1,N2-bis(2-pyridinylmethyl)- | BS-48243 | SCHEMBL996544 | N1,N2-D...
  11. 1,3,5-Tris(1H-tetrazol-5-yl)benzene
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    1,3,5-Tris(1H-tetrazol-5-yl)benzene
    CAS: 193614-99-2 Formula: C9H6N12 Molecular Weight: 282.23
    Solid ≥97%
    In Stock Item #: B300115
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    Pricing & Pack Sizes
    Technical Identifiers
    IUPAC Name
    5-[3,5-bis(2H-tetrazol-5-yl)phenyl]-2H-tetrazole
    SMILES
    C1=C(C=C(C=C1C2=NNN=N2)C3=NNN=N3)C4=NNN=N4
    InChIKey
    GFBCVHAPAZSJFG-UHFFFAOYSA-N
    InChI
    1S/C9H6N12/c1-4(7-10-16-17-11-7)2-6(9-14-20-21-15-9)3-5(1)8-12-18-19-13-8/h1-3H,(H,10,11,16,17)(H,12,13,18,19)(H,14,15,20,21)
  12. 2-Morpholino-N-[2-(phenylthio)ethyl]ethan-1-amine - 95%, used for , CAS No. 1179894-18-8, by Aladdin Scientific
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    2-Morpholino-N-[2-(phenylthio)ethyl]ethan-1-amine
    CAS: 1179894-18-8 Formula: C14H22N2OS Molecular Weight: 266.4
    ≥95%
    Out of Stock Item #: M281626
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    Pricing & Pack Sizes
    Technical Identifiers
    IUPAC Name
    2-morpholin-4-yl-N-(2-phenylsulfanylethyl)ethanamine
    SMILES
    C1COCCN1CCNCCSC2=CC=CC=C2
    InChIKey
    QZXXNGSHWPYOBV-UHFFFAOYSA-N
    InChI
    1S/C14H22N2OS/c1-2-4-14(5-3-1)18-13-7-15-6-8-16-9-11-17-12-10-16/h1-5,15H,6-13H2
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Frequently Asked Questions

How do I choose between Buchwald, phosphine, NHC, and chiral ligands?
Choose by reaction type: Buchwald ligands for Pd-catalyzed C–N and C–C coupling, phosphine ligands for general transition metal catalysis, NHC ligands for stable carbene chemistry and Ru/Pd catalysis, and chiral ligands for asymmetric induction.
Which ligand subcategory should I start with for my reaction?
For Buchwald-Hartwig amination, start with Buchwald Ligands. For asymmetric hydrogenation, use Chiral Ligands. For olefin metathesis and Ru catalysis, browse NHC Ligands. For general Pd/Pt/Rh catalysis, start with Phosphine Ligands.
What specifications matter most when comparing ligands?
Air and moisture sensitivity, purity (≥95% typical), enantiomeric excess for chiral ligands, ligand-to-metal ratio recommendations, and compatibility with your substrate. Storage under inert atmosphere is often required.
Can I find ligands paired with specific metals?
Yes. Filter by metal compatibility (Pd, Pt, Rh, Ru, Ir, Ni) or browse pre-formed metal-ligand complexes in the NHC and Phosphine subcategories.
Ligands are often selected in the context of a metal, reaction class, and desired selectivity profile, so this category helps group the major ligand families used in catalysis. When comparing products, chemists typically consider steric and electronic properties, bite angle, coordination behavior, air sensitivity, handling, and suitability for a known catalytic system. Buchwald ligands, chiral ligands, NHC ligands and complexes, and phosphine ligands are organized here to support faster navigation into a more specific ligand family. This makes the category useful both for routine catalyst system selection and for exploring alternatives during reaction optimization.
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