All
Covalent Modifiers
In-Stock Covalent Modifiers
265 454
Cysteine-targeted Covalent Modifiers
In-Stock Cysteine-Targeted Covalent Modifiers
117 368
Lysine-targeted Covalent Modifiers
In-Stock Lysine-Targeted Covalent Modifiers
39 054
Sets by Warhead: α-Trifluorophenyl Alkene
α-Trifluoromethyl Alkene
73
α,β-Unsaturated Amide
α,β-Unsaturated Carbonyl Amide Alkenyl Substituted
32 259
α,β-Unsaturated Carbonyl Amide Alkynyl
2 433
α,β-Unsaturated Carbonyl Amide Vinyl
30 213
α,β-Unsaturated Ester
α,β-Unsaturated Carbonyl Ester Alkenyl Substituted
8 622
α,β-Unsaturated Carbonyl Ester Alkynyl
116
α,β-Unsaturated Carbonyl Ester Vinyl
26
α,β-Unsaturated Ketone
α,β-Unsaturated Carbonyl Ketone Alkenyl Substituted
7 219
α,β-Unsaturated Carbonyl Ketone Alkynyl
10
α,β-Unsaturated Carbonyl Ketone Vinyl
6
α,β-Unsaturated Nitrile
α,β-Unsaturated Nitrile Alkenyl Substituted
55
α,β-Unsaturated Nitrile Alkynyl
1
α,β-Unsaturated Sulfone
α,β-Unsaturated Sulfone Alkenyl Substituted
2 777
α,β-Unsaturated Sulfone Vinyl
252
α,β-Unsaturated Sulfonic Acid
α,β-Unsaturated Sulfonic Acid Alkenyl Substituted
18
α,β-Unsaturated Sulfonic Acid Vinyl
5
α,β-Unsaturated Sulfonyl Amide
α,β-Unsaturated Sulfonyl Amide Alkenyl Substituted
2 251
α,β-Unsaturated Sulfonyl Amide Alkynyl
2
α,β-Unsaturated Sulfonyl Amide Vinyl
1 450
α,β-Unsaturated Thioester
α,β-Unsaturated Thioester Alkenyl Substituted
4
β-Lactam
β-Lactam
1 979
β-Lactone
β-Lactone
115
2-Nitrilodiazine
2-Nitrilodiazine
537
Acyl Halide
Acyl Halide
607
Aldehyde
Common warheads in proteolytic enzyme inhibitors, used in the modification of lysine residues in proteomics.
Aldehyde
18 446
Aldehyde Protected
4 089
Alkenyl Halide
Alkenyl Halide
4 224
Alkyl Halide
Abundant in approved and investigational drugs, cysteine alkylation agents. Used in kinase inhibitors design, mechanism-based inhibitors and much more.
Alkyl Halide
1 750
Alkyne
Alkyne
23 102
Alkynyl Halide
Alkynyl Halide
87
Aziridine
Aziridine
560
Boronic Acid
Warheads for catalytic serine or threonine residues, as exemplified by the approved proteasome inhibitor bortezomib.
Boronic Acid
2 681
Boronic Ester
Boronic Ester
4 784
Carbamate
Carbamate
38 010
Cyanoacrylamide
Cyanoacrylamide
5 914
Disulfide
Disulfide
2 529
Fluorosulfamide
Fluorosulfamide
1 244
Fluorosulfate
Fluorosulfate
566
Imidoyl Halide
Imidoyl Halide
113
Isocyanate
Isocyanate
174
Isothiocyanate
Isothiocyanate
301
Oxetane
Popular warhead to target different types of proteases and glycosidases, cysteine alkylation. Approved oxetane-based drugs – carfilzomib, fosfomycin.
Oxetane
8 271
Oxirane
Oxirane
1 258
Quinone
Quinone ortho
107
Quinone para
1 500
Succinate
Succinate
157
Sulfonyl Fluoride
Addressing the ε-amino group of lysines, targeting tyrosine, activated serine, or threonine residues, reactive toward cysteine and histidine side chains.
Sulfonyl Fluoride
3 620
Thiocarbamate
Thiocarbamate
188
Thioester
Thioester
13
Thiol
Thiol Alkyl
315
Thiol Aryl
16 411
Thiourea
Thiourea
33 933