The PROTAC molecule itself contains three distinct portions: a ligand for binding to the target protein, a ligand for binding to an E3 ligase, and a linker joining these two ligands. PROTACs (proteolysis-targeting chimaeras) are bifunctional molecules that bring a target protein into spatial proximity with an E3 ubiquitin ligase to trigger target ubiquitination and subsequent proteasomal degradation. Effective redirection of ligase poly-ubiquitination activity toward a new substrate protein requires formation of a ligase:PROTAC:target ternary complex, an intermediate species that is crucial to the cellular activity of degrader molecules. A characteristic feature of PROTACs mode of action is their sub-stoichiometric catalytic activity that alleviates the requirement for target engagement and occupancy of traditional inhibitors. New PROTAC molecules designed guided by the crystal structure show exquisite selectivity for inducing cellular depletion of Brd4 over its BET family members Brd2 and Brd3.


Anti-infection >
Arenavirus Bacterial CMV Enterovirus Filovirus Fungal HBV HCV HIV HSV Influenza Virus Parasite Reverse Transcriptase RSV SARS-CoV
Antibody-drug Conjugate >
ADC Cytotoxin ADC Linker Drug-Linker Conjugates for ADC PROTAC-linker Conjugate for PAC
Apoptosis >
Apoptosis Bcl-2 Family c-Myc Caspase DAPK Ferroptosis IAP MDM-2/p53 PKD RIP kinase Survivin Thymidylate Synthase TNF Receptor
Autophagy >
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Cell Cycle/DNA Damage >
Antifolate APC ATM/ATR Aurora Kinase Casein Kinase CDK Checkpoint Kinase (Chk) CRISPR/Cas9 Deubiquitinase DNA Alkylator/Crosslinker DNA-PK DNA/RNA Synthesis Eukaryotic Initiation Factor (eIF) G-quadruplex Haspin Kinase HDAC HSP IRE1 Kinesin LIM Kinase (LIMK) Microtubule/Tubulin Mps1 Nucleoside Antimetabolite/Analog p97 PAK PARP PERK Polo-like Kinase (PLK) PPAR RAD51 ROCK Sirtuin SRPK Telomerase TOPK Topoisomerase Wee1
Cytoskeleton >
Arp2/3 Complex Dynamin Gap Junction Protein Integrin Kinesin Microtubule/Tubulin Mps1 Myosin PAK
Epigenetics >
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GPCR/G Protein >
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Immunology/Inflammation >
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JAK/STAT Signaling >
EGFR JAK Pim STAT
MAPK/ERK Pathway >
ERK JNK KLF MAP3K MAP4K MAPKAPK2 (MK2) MEK Mixed Lineage Kinase MNK p38 MAPK Raf Ribosomal S6 Kinase (RSK)
Membrane Transporter/Ion Channel >
ATP Synthase BCRP Calcium Channel CFTR Chloride Channel CRAC Channel CRM1 EAAT2 GABA Receptor GlyT HCN Channel iGluR Monoamine Transporter Monocarboxylate Transporter Na+/Ca2+ Exchanger Na+/HCO3- Cotransporter Na+/K+ ATPase nAChR NKCC P-glycoprotein P2X Receptor Potassium Channel Proton Pump SGLT Sodium Channel TRP Channel URAT1
Metabolic Enzyme/Protease >
15-PGDH 5 alpha Reductase 5-Lipoxygenase Acetyl-CoA Carboxylase Acyltransferase Adenosine Deaminase Adenosine Kinase Aldehyde Dehydrogenase (ALDH) Aldose Reductase Aminopeptidase Angiotensin-converting Enzyme (ACE) ATGL ATP Citrate Lyase Carbonic Anhydrase Carboxypeptidase Cathepsin CETP COMT Cytochrome P450 Dipeptidyl Peptidase Dopamine β-hydroxylase E1/E2/E3 Enzyme Elastase Enolase FAAH FABP Factor Xa Farnesyl Transferase Fatty Acid Synthase (FAS) FXR Glucokinase GSNOR Gutathione S-transferase HCV Protease Hexokinase HIF/HIF Prolyl-Hydroxylase HIV Integrase HIV Protease HMG-CoA Reductase (HMGCR) HSP Indoleamine 2,3-Dioxygenase (IDO) Isocitrate Dehydrogenase (IDH) Lactate Dehydrogenase LXR MAGL Mineralocorticoid Receptor Mitochondrial Metabolism MMP Nampt NEDD8-activating Enzyme Neprilysin PAI-1 PDHK PGC-1α Phosphatase Phosphodiesterase (PDE) Phospholipase Procollagen C Proteinase Proteasome Pyruvate Kinase RAR/RXR Renin ROR Ser/Thr Protease SGK Stearoyl-CoA Desaturase (SCD) Thrombin Tryptophan Hydroxylase Tyrosinase Xanthine Oxidase
Neuronal Signaling >
5-HT Receptor AChE Adenosine Kinase Amyloid-β Beta-secretase CaMK CGRP Receptor COMT Dopamine Receptor Dopamine Transporter FAAH GABA Receptor GlyT iGluR Imidazoline Receptor mAChR Melatonin Receptor Monoamine Oxidase nAChR Neurokinin Receptor Opioid Receptor Serotonin Transporter γ-secretase
NF-κB >
NF-κB IKK Keap1-Nrf2 MALT1
PI3K/Akt/mTOR >
Akt AMPK ATM/ATR DNA-PK GSK-3 MELK mTOR PDK-1 PI3K PI4K PIKfyve PTEN
PROTAC >
PROTAC E3 Ligase Ligand-Linker Conjugate Ligand for E3 Ligase PROTAC Linker PROTAC-linker Conjugate for PAC
Protein Tyrosine Kinase/RTK >
Ack1 ALK Bcr-Abl BMX Kinase Btk c-Fms c-Kit c-Met/HGFR Discoidin Domain Receptor DYRK EGFR Ephrin Receptor FAK FGFR FLT3 IGF-1R Insulin Receptor IRAK Itk PDGFR PKA Pyk2 ROS Src Syk TAM Receptor Trk Receptor VEGFR
Stem Cell/Wnt >
Casein Kinase ERK Gli GSK-3 Hedgehog Hippo (MST) JAK Notch Oct3/4 PKA Porcupine ROCK sFRP-1 Smo STAT TGF-beta/Smad Wnt YAP β-catenin γ-secretase
TGF-beta/Smad >
TGF-beta/Smad PKC ROCK TGF-β Receptor
Vitamin D Related >
VD/VDR
Others >
Androgen Receptor Aromatase Estrogen Receptor/ERR Progesterone Receptor Thyroid Hormone Receptor Others

RIP2 Kinase Inhibitor 4

RIP2 Kinase Inhibitor 4 is a potent and selective RIPK2 PROTAC. RIP2 Kinase Inhibitor 4 effectively degrades RIPK2 (pIC50 of 8) and inhibits the release of related TNF-α[1].

  • CAS Number: 2126803-41-4
  • MF: C50H66F2N14O7S
  • MW: 1045.21
  • Catalog: RIP kinase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC IRAK4 degrader-5

PROTAC IRAK4 degrader-5 is a PROTAC-based IRAK4 degrader extracted from patent US20190192668A1, compound I-171[1].

  • CAS Number: 2360530-61-4
  • MF: C41H40F3N11O9
  • MW: 887.82
  • Catalog: IRAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Gefitinib-based PROTAC 3

Gefitinib-based PROTAC 3, conjugating an EGFR binding element to a VHL ligand via a linker, induces EGFR degradation with DC50s of 11.7 nM and 22.3 nM in HCC827(exon 19 del) and H3255 (L858R mutantion) cells, respectively[1].

  • CAS Number: 2230821-27-7
  • MF: C47H57ClFN7O8S
  • MW: 934.51
  • Catalog: EGFR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

AT6

AT6 is a PROTAC AT1 analogue, which is a highly selective bromodomain (Brd4) degrader.

  • CAS Number: 2098836-50-9
  • MF: C48H58ClN9O7S3
  • MW: 1004.68
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC PTPN2 degrader-2 TFA

PROTAC PTPN2 degrader-2 (example 187B) TFA is a potent PTPN2 degrader with potential for studying cancer or metabolic diseases[1].

  • CAS Number: 2912307-39-0
  • MF: C51H50ClF3N6O13S2
  • MW: 1111.55
  • Catalog: Phosphatase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MT-802

MT-802 is a potent BTK degrader based on PROTAC technology, with a DC50 of 1 nM. MT-802 has potential to treat C481S mutant chronic lymphocytic leukemia (CLL)[1].

  • CAS Number: 2231744-29-7
  • MF: C41H41N9O8
  • MW: 787.82
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC PTPN2 degrader-2

PROTAC PTPN2 degrader-2 (example 187B) is a potent PTPN2 degrader with potential for studying cancer or metabolic diseases[1].

  • CAS Number: 2912307-38-9
  • MF: C49H49ClN6O11S2
  • MW: 997.53
  • Catalog: Phosphatase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

HJB97

HJB97 is a high-affinity BET inhibitor with Kis of 0.9±0.2 nM (BRD2 BD1), 0.27±0.09 nM (BRD2 BD2), 0.18±0.01 nM (BRD3 BD1), 0.21±0.03 nM (BRD3 BD2), 0.5±0.2 nM (BRD4 BD1), 1.0±0.1 nM (BRD4 BD2), respectively. HJB97 is a PROTAC BET degrader. Antitumor activity[1].

  • CAS Number: 2093391-24-1
  • MF: C26H28N8O3
  • MW: 500.55
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC IRAK4 degrader-1

PROTAC IRAK4 degrader-1 is a PROTAC interleukin-1 receptor-associated kinase 4 (IRAK4) degrader extracted from patent US20190192668A1 Compound I-210, makes <20%, >20-50%, and >50% IRAK4 degradation at 0.01, 0.1, and 1 μM in OCI-LY-10 cells, respectively[1].

  • CAS Number: 2360533-90-8
  • MF: C44H39F3N12O7
  • MW: 904.85
  • Catalog: IRAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JQAD1

JQAD1 is a CRBN-dependent PROTAC that selectively targets EP300 for degradation. JQAD1 suppresses EP300 expression and the H3K27ac modification. JQAD1 induces apoptosis. JQAD1 can be used in research of cancer[1].

  • CAS Number: 2417097-18-6
  • MF: C48H52F4N6O9
  • MW: 932.95
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

BSJ-03-204

BSJ-03-204 is a potent and selective Palbociclib-based CDK4/6 dual degrader (PROTAC), with IC50s of 26.9 nM and 10.4 nM for CDK4/D1 and CDK6/D1, respectively. BSJ-03-204 does not induce IKZF1/3 degradation and has anti-cancer activity[1].

  • CAS Number: 2349356-09-6
  • MF: C43H48N10O8
  • MW: 832.90
  • Catalog: CDK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC FLT-3 degrader 1

PROTAC FLT-3 degrader 1 is an FLT-3 internal tandem duplication (ITD) degrader with an IC50 0.6 nM. Anti-proliferative activity; apoptosis induction[1].

  • CAS Number: 2230826-81-8
  • MF: C52H61N9O9S2
  • MW: 1020.23
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC BET degrader-2

PROTAC BET degrader-2 is a highly potent degrader of Bromodomain and Extra-Terminal (BET) proteins with an IC50 value of 9.6 nM in cell growth inhibition in the RS4;11 cells and capable of achieving tumor regression.

  • CAS Number: 2093388-33-9
  • MF: C41H42N10O6
  • MW: 770.84
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CCT367766

CCT-367766 (CCT367766) is a novel heterobifunctional PROTAC that binds and degrades the putative transcription factor regulator Pirin in cells.

  • CAS Number: 2229856-58-8
  • MF: C49H48ClN7O11
  • MW: 946.41
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC CRBN Degrader-1

PROTAC CRBN Degrader-1 comprises a cereblon (CRBN) ligand binding group, a linker and an von Hippel-Landau (VHL) binding group. PROTAC CRBN Degrader-1 is an cereblon (CRBN) degrader[1].

  • CAS Number: 2358775-70-7
  • MF: C53H72N8O13S
  • MW: 1061.25
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC Bcl-xL degrader-3

PROTAC Bcl-xL degrader-3 is a potent ROTAC Bcl-xL degrader (WO2020163823A2, compound 44)[1].

  • CAS Number: 2471970-60-0
  • MF: C82H105ClF3N11O11S4
  • MW: 1641.49
  • Catalog: Bcl-2 Family
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ARV-766

ARV-766 is an orally active and potent proteolysis targeting chimera (PROTAC) protein degrader. ARV-766 degrades wild-type androgen receptor (AR) but also relevant AR LBD mutants, including the most prevalent AR L702H, H875Y, and T878A mutations[1].

  • CAS Number: 2750830-09-0
  • MF: C45H54FN7O6
  • MW: 807.95
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MS33

MS33 is a potent WDR5 degrader, with Kds of 870 nM and 120 nM for VCB and WDR5, respectively. MS33 induces WDR5 degradation in an E3 ligase VHL, and proteasome-dependent manner. MS33 can be used for the research of acute myeloid leukemia[1][2][3].

  • CAS Number: 2407449-11-8
  • MF: C64H84F3N11O7S
  • MW: 1208.48
  • Catalog: Histone Methyltransferase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Mz1

MZ 1 is a BRD4 protein degrader based on PROTAC technology.

  • CAS Number: 1797406-69-9
  • MF: C49H60ClN9O8S2
  • MW: 1002.64
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC STAT3 degrader-2

PROTAC STAT3 degrader-2 is a selective and efficacious PROTAC degrader of STAT3 protein with a DC50 of 3.54 μM in Molm-16 Cell. PROTAC STAT3 degrader-2 has the potential for cancer research[1].

  • CAS Number: 2429877-78-9
  • MF: C59H60F2N9O13P
  • MW: 1172.13
  • Catalog: STAT
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC RIPK degrader-2

PROTAC RIPK degrader-2 is a nonpeptidic PROTAC which potently targets serine-threonine kinase RIPK2 and has highly selective for RIPK2 degradation[1].

  • CAS Number: 1801547-16-9
  • MF: C52H65N7O11S3
  • MW: 1060.31
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ND1-YL2

ND1-YL2 is a PROTAC that selectively degrades SRC-1 via the N-degron pathway. ND1-YL2 significantly inhibits cancer invasion and migration in vitro and in vivo. ND1-YL2 can be used in cancer research[1].

  • CAS Number: 2582803-80-1
  • MF: C114H189N27O28
  • MW: 2385.88
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC RAF degrader 1

PROTAC RAF degrader 1 (compound 512) is a PROTAC RAF degrader. PROTAC RAF degrader 1 induces targeted degradation of BRAF mutants (DC50: 5.4 nM, 4.64 nM, 15.5 nM, 2.11 nM, 63.9 nM for BRAF V600E, V600K, G464V, G469A, K601E respectively). PROTAC RAF degrader 1 has anti-tumor activity. PROTAC RAF degrader 1 can be used for research of disorders that result from aggregation or accumulation of RAF, or the constitutive activation of RAF[1].

  • CAS Number: 2413035-41-1
  • MF: C51H57F2N9O7S2
  • MW: 1010.18
  • Catalog: Raf
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC HDAC6 degrader 1

PROTAC HDAC6 degrader (Compound A6) is a potent and selective PROTAC HDAC6 degrader with a DC50 of 3.5 nM. PROTAC HDAC6 degrader shows promising antiproliferative activity via inducing apoptosis in myeloid leukemia cell lines[1].

  • CAS Number: 2785404-76-2
  • MF: C37H46N6O10
  • MW: 734.80
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

AZ'6421

AZ'6421 acts as Protcolysis Targeting Chimera (PROTAC) to selectively degrade estrogen receptor alpha. AZ'6421 has a potent anti-tumour effect to inhibit the uncontrolled cellular proliferation which arises from malignant disease. AZ'6421 can be used for the research of cancer such as breast cancer[1].

  • CAS Number: 2361115-35-5
  • MF: C52H65F3N6O7S
  • MW: 975.17
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

N-Deshydroxyethyl Dasatinib

Target Protein-binding moiety 8 is a compound binding to BCR-ABL, and used for inhibiting BCR-ABL activity.

  • CAS Number: 910297-51-7
  • MF: C20H22ClN7OS
  • MW: 443.95300
  • Catalog: PROTAC
  • Density: 1.404g/cm3
  • Boiling Point: N/A
  • Melting Point: >300ºC
  • Flash Point: N/A

PROTAC Sirt2 Degrader-1

PROTAC Sirt2 Degrader-1 is a SirReal-based PROTAC, acts as a Sirt2 degrader, composed of a highly potent and isotype-selective Sirt2 inhibitor, a linker and thalidomide, a bona fide cereblon ligand for E3 ubiquitin ligase. PROTAC Sirt2 Degrader-1 shows an IC50 of 0.25 μM for Sirt2, with no effect on Sirt1/Sirt3 (IC50s > 100 μM)[1].

  • CAS Number: 2098487-75-1
  • MF: C40H40N10O8S2
  • MW: 852.94
  • Catalog: Sirtuin
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC ER Degrader-3

PROTAC ER Degrader-3 is an intermediate for synthesis of PAC. PAC comprises an antibody conjugated via a linker to a PROTAC. PAC extracts from patent WO2017201449A1, compound LP2. PAC is a more marked estrogen receptor-alpha (ERα) degrader compared to PROTAC (without Ab).

  • CAS Number: 2158322-29-1
  • MF: C71H77N7O12
  • MW: 1220.41
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

dTAGV-1 TFA

dTAGV-1 TFA is a potent and selective degrader of mutant FKBP12F36V fusion proteins. dTAGV-1 TFA can induce degradation of FKBP12F36V-Nluc in vivo[1].

  • CAS Number: 2624313-15-9
  • MF: C70H91F3N6O16S
  • MW: 1361.56
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SLF-amido-C2-COOH

Target Protein-binding moiety 13 is a synthetic ligand for FKBP (SLF), which is used in the synthesis of PROTACs.

  • CAS Number: 1092369-24-8
  • MF: C34H44N2O9
  • MW: 624.72
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A