Janus kinase (JAK) is a family of intracellular, nonreceptor tyrosine kinases that transduce cytokine-mediated signals via the JAK-STAT pathway. Since members of the type I and type II cytokine receptor families possess no catalytic kinase activity, they rely on the JAK family of tyrosine kinases to phosphorylate and activate downstream proteins involved in their signal transduction pathways. The receptors exist as paired polypeptides, thus exhibiting two intracellular signal-transducing domains. JAKs associate with a proline-rich region in each intracellular domain, which is adjacent to the cell membrane and called a box1/box2 region. After the receptor associates with its respective cytokine/ligand, it goes through a conformational change, bringing the two JAKs close enough to phosphorylate each other. The JAK autophosphorylation induces a conformational change within itself, enabling it to transduce the intracellular signal by further phosphorylating and activating transcription factors called STATs. The activated STATs dissociate from the receptor and form dimers before translocating to the cell nucleus, where they regulate transcription of selected genes.


Anti-infection >
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Cytoskeleton >
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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 >
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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

NSC 33994

NSC 33994 (G6) is a selective JAK2 inhibitor, with an IC50 of 60 nM[1].

  • CAS Number: 82058-16-0
  • MF: C28H42N2O2
  • MW: 438.64500
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ZM 449829

ZM 449829 is a potent, selective and ATP competitive inhibitor of JAK3, with a pIC50 of 6.8. ZM 449829 will be useful pharmacological tools for the investigation of the JAK3[1].

  • CAS Number: 4452-06-6
  • MF: C13H10O
  • MW: 182.218
  • Catalog: JAK
  • Density: 1.1±0.1 g/cm3
  • Boiling Point: 319.3±15.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 137.5±15.3 °C

Lestaurtinib

Lestaurtinib (CEP-701;KT-5555) is a multi-kinase inhibitor with potent activity against the Trk family of receptor tyrosine kinases. Lestaurtinib inhibits JAK2, FLT3 and TrkA with IC50s of 0.9, 3 and less than 25 nM, respectively.

  • CAS Number: 111358-88-4
  • MF: C26H21N3O4
  • MW: 439.463
  • Catalog: JAK
  • Density: 1.7±0.1 g/cm3
  • Boiling Point: 723.0±60.0 °C at 760 mmHg
  • Melting Point: 215-220ºC
  • Flash Point: 391.0±32.9 °C

JAK1-IN-11

JAK1-IN-11 (compound 11) is a potent inhibitor of JAK,with IC50s of 0.02 nM (JAK1),and 0.44 nM (JAK2),respectively. JAK1-IN-11 has high selectivity against JAK1 over JAK2[1].

  • CAS Number: 2427608-43-1
  • MF: C26H36N6O4S
  • MW: 528.67
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TYK2-IN-11

TYK2-IN-11 (Compound 5B) is a selective Tyk-2 inhibitor with IC50s of 0.016 and 0.31 nM for TYK2-JH2 and JAK1-JH2, respectively. TYK2-IN-11 can be used for the research of inflammatory or autoimmune disease[1].

  • CAS Number: 2757009-40-6
  • MF: C18H17N5O3S
  • MW: 383.42
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

WP1066

WP1066 is an inhibitor of JAK2 and STAT3, and also shows effect on STAT5 and ERK1/2, without affecting JAK1 and JAK3.

  • CAS Number: 857064-38-1
  • MF: C17H14BrN3O
  • MW: 356.217
  • Catalog: JAK
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 569.9±50.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 298.5±30.1 °C

AZD1480

AZD-1480 is a novel ATP-competitive JAK2 inhibitor with IC50 of < 0.4 nM, selectively against JAK3 and Tyk2, and to a smaller extent against JAK1.

  • CAS Number: 935666-88-9
  • MF: C14H14ClFN8
  • MW: 348.766
  • Catalog: JAK
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 575.2±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 301.7±32.9 °C

SC-99

A novel selective STAT3 inhibitor that inhibits JAK2-STAT3 activation but has no effects on other transcription factors such as NF-κB, and kinases such as AKT, ERK, and c-Src; inhibits STAT3 phosphorylation, dimerization and nuclear translocation, downregulates STAT3-modulated gene expression and induces MM cell apoptosis; delays tumor growth in MM xenograft models (30mg/kg); orally active.

  • CAS Number: 882290-02-0
  • MF: C15H8Cl2FN3O
  • MW: 336.147
  • Catalog: Apoptosis
  • Density: 1.38±0.1 g/cm3(Predicted)
  • Boiling Point: 459.4±55.0 °C(Predicted)
  • Melting Point: N/A
  • Flash Point: N/A

JAK3/BTK-IN-6

JAK3/BTK-IN-6 (compound 14h) is a potent BTK and JAK3 dual inhibitor, with IC50 values of 0.6 and 0.4 nM, respectively. JAK3/BTK-IN-6 shows good metabolic stability in human liver microsome. JAK3/BTK-IN-6 can be used for hematological and immune diseases research[1].

  • CAS Number: 2243136-03-8
  • MF: C21H17BF3N5O3
  • MW: 455.20
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SYK/JAK-IN-1

SYK/JAK-IN-1 is dual SYK/JAK inhibitor with IC50s of <5 nM for SYK and JAK2, respectively[1].

  • CAS Number: 2737326-28-0
  • MF: C24H26N8O3
  • MW: 474.52
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Broussonin E

Broussonin E is a phenolic compound and shows anti-inflammatory activity. Broussonin E can suppress inflammation by modulating macrophages activation statevia inhibiting the ERK and p38 MAPK and enhancing JAK2-STAT3 signaling pathway. Broussonin E can be used for the research of inflammation-related diseases such as atherosclerosis[1].

  • CAS Number: 90902-21-9
  • MF: C17H20O4
  • MW: 288.338
  • Catalog: JAK
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 464.9±40.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 235.0±27.3 °C

α7 nAchR-JAK2-STAT3 agonist 1

α7 nAchR-JAK2-STAT3 agonist 1 is a potent α7 nAchR-JAK2-STAT3 agonist, with an IC50 value of 0.32 μM for nitric oxide (NO). α7 nAchR-JAK2-STAT3 agonist 1 effectively suppresses the expression of iNOS, IL-1β, and IL-6 in murine RAW264.7 macrophages. α7 nAchR-JAK2-STAT3 agonist 1 can inhibit LPS-induced NO release, NF-κB activation and cytokine production. α7 nAchR-JAK2-STAT3 can be used for researching sepsis[1].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

(E/Z)-AG490

(E/Z)-AG490 ((E/Z)-Tyrphostin AG490) is a racemic compound of (E)-AG490 and (Z)-AG490 isomers. (E)-AG490 (HY-12000) is a tyrosine kinase inhibitor that inhibits EGFR, Stat-3 and JAK2/3.

  • CAS Number: 134036-52-5
  • MF: C17H14N2O3
  • MW: 294.30500
  • Catalog: JAK
  • Density: 1.337g/cm3
  • Boiling Point: 615.2ºC at 760mmHg
  • Melting Point: 215ºC
  • Flash Point: 325.9ºC

CEP-1347

CEP-1347 is an inhibitor of the JNK/SAPK pathway with neuroprotective effects.

  • CAS Number: 156177-65-0
  • MF: C33H33N3O5S2
  • MW: 615.76200
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Povorcitinib phosphate

Povorcitinib phosphate is a potent and selective inhibitor of JAK1. Povorcitinib phosphate has the potential for the research of disease selected from cutaneous lupus erythematosus (CLE) and Lichen planus (LP)[1].

  • CAS Number: 1637677-33-8
  • MF: C23H25F5N7O5P
  • MW: 605.45
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

GLPG0634

GLPG0634 is a selective JAK1 inhibitor with IC50 of 10 nM, 28 nM, 810 nM, and 116 nM for JAK1, JAK2, JAK3, and TYK2, respectively.

  • CAS Number: 1206161-97-8
  • MF: C21H23N5O3S
  • MW: 425.504
  • Catalog: JAK
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MTP

MTP is a PKM2 inhibitor. MTP induces cancer cell apoptosis by modulating caspase-3 activation. MTP induces autophagy and increases ROS generation. MTP also inhibits JAK2 signaling. MTP can be used for research of oral squamous cell carcinoma[1].

  • CAS Number: 2377372-62-6
  • MF: C29H23F3N4O2
  • MW: 516.51
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JAK1-IN-8

JAK1-IN-8, a potent JAK1 inhibitor (IC50<500 nM), compound 28, extracted from patent WO2016119700A1[1].

  • CAS Number: 1973485-18-5
  • MF: C22H23FN4O3S
  • MW: 442.51
  • Catalog: JAK
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

5-[4-(1,1-dioxothiomorpholin-4-ylmethyl)-phenyl]-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine

GS-829845 is a major, active metabolite of Filgotinib (HY-18300). GS-829845 is a JAK1 preferential inhibitor but is approximately 10-fold less potent than the parent and with a longer half-life[1][2].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JAK3 Inhibitor VI

JI6 is a potent, selective and orally active FLT3 inhibitor, with IC50s of ∼40, 8, and 4 nM for FLT3-WT, FLT3-D835Y, and FLT3-D835H, respectively. JI6 also inhibits JAK3 and c-Kit, with IC50s of ∼250 and ∼500 nM, respectively. JI6 can be used for the research of acute myeloid leukemia[1].

  • CAS Number: 856436-16-3
  • MF: C19H17N3O4S
  • MW: 383.42100
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TG-46

JAK-IN-35 (compound TG46) is a JAK2 inhibitor that canb be used in cancer research[1].

  • CAS Number: 936091-15-5
  • MF: C26H34N6O3S
  • MW: 510.652
  • Catalog: JAK
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 687.5±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 369.6±34.3 °C

QL-1200186

QL-1200186 is anorally activeand selective inhibitor ofTYK2. Oral administration of QL-1200186, dose-dependently inhibitsinterferon-γ(IFNγ) production afterinterleukin-12(IL-12) challenge and significantly ameliorates skin lesions in psoriatic mice[1].

  • CAS Number: 2848664-42-4
  • MF: C26H27N7O3
  • MW: 485.54
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

RO495

RO495 is a potent inhibitor of non-receptor tyrosine-protein kinase 2 (TYK2 kinase)[1].

  • CAS Number: 1258296-60-4
  • MF: C17H14Cl2N6O
  • MW: 389.24
  • Catalog: JAK
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TC JL 37

TCJL37 is a potent, selective, and orally bioavailable TYK2 inhibitor with a Ki of 1.6 nM. TCJL37 can be used for the research of inflammatory bowel diseases (IBD)[1].

  • CAS Number: 1258294-34-6
  • MF: C17H11ClF2N4O2
  • MW: 376.74
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Pacritinib hydrochloride

Pacritinib hydrochloride is a potent inhibitor of both wild-type JAK2 (IC50=23 nM) and JAK2V617F mutant (IC50=19 nM). Pacritinib hydrochloride also inhibits FLT3 (IC50=22 nM) and its mutant FLT3D835Y (IC50=6 nM). Pacritinib hydrochloride can be used for the research of acute myeloid leukemia (AML) and myelofibrosis (MF)[1][2][3].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JAK-IN-20

JAK-IN-20 is a potent, pan and orally active JAK inhibitor with an IC50s of 7 nM, 5 nM, 14 nM for JAK1, JAK2, JAK3, respectively. JAK-IN-20 shows excellent pharmacokinetics and displays anti-inflammatory efficacy in vivo[1].

  • CAS Number: 1654776-91-6
  • MF: C28H30FN7O2
  • MW: 515.58
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JAK-IN-31

JAK-IN-31 (Example 75) is a JAK inhibitor with IC50 ranges of ≤0.01µM, ≤0.01µM, 0.01-0.1 µM and ≤0.01µM for JAK1, JAK2, JAK3 and Tyk2 respectively. JAK-IN-31 can be used in cancer research[1].

  • CAS Number: 2597016-88-9
  • MF: C21H19N7O2S2
  • MW: 465.55
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Deuruxolitinib

Deuruxolitinib (CTP-543), a deuterated Ruxolitinib, modulates the activity of JAK1/JAK2. Deuruxolitinib can be used for the research hair loss disorders (from patent WO2017192905A1, compound I)[1].

  • CAS Number: 1513883-39-0
  • MF: C17H10D8N6
  • MW: 314.41
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JAK-IN-34

JAK-IN-34 (compound 11n) is a potent against of JAKs with IC50 values of 0.40, 0.83, 2.10, 1.95 nM target JAK1, JAK2, JAK3, TYK2, respectively. JAK-IN-34 reduces joint swelling with good safety[1].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JAK3 covalent inhibitor-1

JAK3 covalent inhibitor-1 is a potent and selective janus kinase 3 (JAK3) covalent inhibitor with an IC50 of 11 nM and shows 246-fold selectivity vs other JAKs[1].

  • CAS Number: 2300106-50-5
  • MF: C22H17FN6O2S
  • MW: 448.47
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A