HSP (Heat shock proteins) are a group of proteins induced by heat shock, the most prominent members of this group are a class of functionally related proteins involved in the folding and unfolding of other proteins. HSP expression is increased when cells are exposed to elevated temperatures or other stress. This increase in expression is transcriptionally regulated. The dramatic upregulation of the heat shock proteins is a key part of the heat shock response and is induced primarily by heat shock factor (HSF). HSPs are found in virtually all living organisms, from bacteria to humans. Heat shock proteins appear to serve a significant cardiovascular role. Hsp90, Hsp84, Hsp70, Hsp27, Hsp20 and alpha B crystallin all have been reported as having roles in the cardiovasculature.


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PF-04929113(SNX-5422)

SNX-5422 (PF-04929113), a prodrug of SNX-2112, is an orally active Hsp90 inhibitor, with a Kd of 41 nM, and also induces Her-2 degradation, with an IC50 of 37 nM.

  • CAS Number: 908115-27-5
  • MF: C25H30F3N5O4
  • MW: 521.532
  • Catalog: HSP
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 646.5±55.0 °C at 760 mmHg
  • Melting Point: 298-299℃
  • Flash Point: 344.8±31.5 °C

Col 003

Col003 is a potent inhibitor of Hsp47, competitively binds to the collagen binding site on Hsp47 (IC50, 1.8 μM), and inhibits collagen secretion by destabilizing the collagen triple helix[1].

  • CAS Number: 328565-16-8
  • MF: C14H11NO4
  • MW: 257.24
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Tamoxifen

Tamoxifen is a selective estrogen receptor modulator (SERM) which blocks estrogen action in breast cells and can activate estrogen activity in other cells, such as bone, liver, and uterine cells.

  • CAS Number: 10540-29-1
  • MF: C26H29NO
  • MW: 371.515
  • Catalog: Apoptosis
  • Density: 1.0±0.1 g/cm3
  • Boiling Point: 482.3±33.0 °C at 760 mmHg
  • Melting Point: 97-98ºC
  • Flash Point: 140.0±27.7 °C

KNK437

KNK437 is a HSP inhibitor, and inhibits the induction of HSP105, HSP70, and HSP40.

  • CAS Number: 218924-25-5
  • MF: C13H11NO4
  • MW: 245.231
  • Catalog: HSP
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 412.4±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 203.2±31.5 °C

Palmitic acid-d2-1

Palmitic acid-d2-1 is the deuterium labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. Palmitic acid can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].

  • CAS Number: 62690-28-2
  • MF: C16H30D2O2
  • MW: 258.43600
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

(4,4-2H2)Hexadecanoic acid

Palmitic acid-d2-4 is the deuterium labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. PA can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].

  • CAS Number: 30719-28-9
  • MF: C16H30D2O2
  • MW: 258.44
  • Catalog: HSP
  • Density: 0.9±0.1 g/cm3
  • Boiling Point: 340.6±5.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 154.1±12.5 °C

Displurigen

Displurigen (NSC375009) disrupts human embryonic stem cell pluripotency by targeting HSPA8. Displurigen inhibits ATPase activity of HSP70 (IC50 = 225 μM)[1].

  • CAS Number: 96156-26-2
  • MF: C15H10O4S
  • MW: 286.30300
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

GRP78-IN-3

GRP78-IN-3 is a selective Grp78 (HSPA5) inhibitor with an IC50 of 0.59 μM. GRP78-IN-3 is 7-fold selective for HspA5 compared to HspA9 (IC50 of 4.3 μM) and >20-fold selective for HspA5 compared to HspA2 (IC50 of 13.9 μM)[1].

  • CAS Number: 2707510-30-1
  • MF: C17H18N4O2S
  • MW: 342.42
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Hsp90-IN-15

Hsp90-IN-15 is an Hsp90 inhibitor with anticancer activity. Hsp90-IN-15 induces cell apoptosis, arrests the cell cycle at S phase and decreases the expression level of Hsp90 in Hela cell[1].

  • CAS Number: 2252283-32-0
  • MF: C23H27F3N4
  • MW: 416.48
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

AT-533

AT-533 is a potent Hsp90 and HSV inhibitor. AT-533 suppresses tumor growth and angiogenesis by blocking the HIF-1α/VEGF/VEGFR-2 signaling pathway. AT-533 also inhibits the activation of the downstream pathways, including Akt/mTOR/p70S6K, Erk1/2 and FAK. AT-533 inhibits the tube formation, cell migration, and invasion of human umbilical vein endothelial cells (HUVECs)[1][2][3].

  • CAS Number: 908112-37-8
  • MF: C23H30N4O3
  • MW: 410.51
  • Catalog: HSV
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Falcarinol

Falcarinol (Panaxynol) is a natural, orally active Hsp90 inhibitor targeting both the N-terminal and C-terminal of Hsp90 with limited toxicities. Falcarinol (Panaxynol) induces apoptosis[1].

  • CAS Number: 21852-80-2
  • MF: C17H24O
  • MW: 244.372
  • Catalog: HSP
  • Density: 0.9±0.1 g/cm3
  • Boiling Point: 370.6±42.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 163.4±20.9 °C

Conglobatin

Conglobatin (FW-04-806), a macrolide dilactone, is isolated from the culture of Streptomyces conglobatus. Conglobatin is an orally active Hsp90 inhibitor. Conglobatin can bind to the N-terminal domain of Hsp90 and disrupt Hsp90-Cdc37 complex formation. Conglobatin induces apoptosis in human breast cancer cells and esophageal squamous cell carcinoma cells, and exhibits antitumor activity in vivo[1][2][3].

  • CAS Number: 72263-05-9
  • MF: C28H38N2O6
  • MW: 498.61100
  • Catalog: Apoptosis
  • Density: 1.06 g/cm3
  • Boiling Point: 673.4ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 361.1ºC

6BrCaQ

6BrCaQ is a potent mitochondrial heat shock protein TRAP1 inhibitor, with antiproliferative activity. 6BrCaQ can be used in the synthesis of 6BrCaQ-TPP conjugates[1].

  • CAS Number: 954416-67-2
  • MF: C18H15BrN2O3
  • MW: 387.23
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Malonganenone A

Malonganenone A is a selective plasmodial Hsp70s modulator. It also has antimalarial activity.

  • CAS Number: 882403-69-2
  • MF: C26H38N4O2
  • MW: 438.61
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

KW-2478

KW-2478 is an inhibitor of Hsp90α, with an IC50 of 3.8 nM, and has antitumor activity against various human hematological tumor cells.

  • CAS Number: 819812-04-9
  • MF: C30H42N2O9
  • MW: 574.662
  • Catalog: HSP
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 746.9±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 405.5±32.9 °C

Palmitic acid-13C16 sodium

Palmitic acid-13C16 sodium is the 13C-labeled Palmitic acid sodium. Palmitic acid sodium is a long-chain saturated fatty acid commonly found in both animals and plants. Palmitic acid sodium can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].

  • CAS Number: 2483736-17-8
  • MF: 13C16H31NaO2
  • MW: 294.29
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

17-AAG

17-AAG is a potent HSP90 inhibitor with an IC50 of 5 nM, having a 100-fold higher binding affinity for tumour cell derived HSP90 than normal cell derived HSP90.

  • CAS Number: 75747-14-7
  • MF: C31H43N3O8
  • MW: 585.688
  • Catalog: Autophagy
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 797.8±60.0 °C at 760 mmHg
  • Melting Point: 201-203ºC
  • Flash Point: 436.3±32.9 °C

Shepherdin 79-87

Shepherdin (79-87) is amino acids 79 to 87 fragment of Shepherdin. Shepherdin is a peptidomimetic antagonist of the complex between Hsp90 and Survivin. Anticancer activity[1].

  • CAS Number: 861224-28-4
  • MF: C41H64N12O12S
  • MW: 949.09
  • Catalog: Survivin
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JG-231

JG-231 is an allosteric inhibitor that disrupts the Hsp70-BAG3 interaction (Ki=0.11 uM), inhibits breast cancer cells MCF-7 and MDA-MB-231 with IC50 of 0.12 and 0.25 uM, respectively; reduces tumor burden in an MDA-MB-231 xenograft model (4 mg/kg, ip).

  • CAS Number: 1627126-59-3
  • MF: C22H18BrCl2N3OS4
  • MW: 619.45
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

YZ129(YZ-129

YZ129 is an inhibitor of the HSP90-calcineurin-NFAT pathway against glioblastoma, directly binding to heat shock protein 90 (HSP90) with an IC50 of 820 nM on NFAT nuclear translocation. YZ129-induced GBM cell-cycle arrest at the G2/M phase promotes apoptosis and inhibited tumor cell proliferation and migration[1].

  • CAS Number: 1643120-60-8
  • MF: C19H12N2O2
  • MW: 300.31
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

3-Phenyltoxoflavin

3-Phenyltoxoflavin, a derivative of Toxoflavin, is an Hsp90 inhibitor, with a Kd of 585 nM for the interaction of Hsp90-TPR2A. 3-Phenyltoxoflavin has anti-cancer activity[1][2].

  • CAS Number: 32502-63-9
  • MF: C13H11N5O2
  • MW: 269.25900
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Eupalinolide B

Eupalinolide A, isolated from Eupatorium lindleyanum, induces the expression of HSP70 via the activation of HSF1 by inhibiting the interaction between HSF1 and HSP90[1].

  • CAS Number: 877822-40-7
  • MF: C24H30O9
  • MW: 462.490
  • Catalog: HSP
  • Density: 1.24±0.1 g/cm3 (20 ºC 760 Torr)
  • Boiling Point: 618.6±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 205.4±25.0 °C

(9,9-2H2)Hexadecanoic acid

Palmitic acid-d2-2 is the deuterium labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. PA can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].

  • CAS Number: 272442-14-5
  • MF: C16H30D2O2
  • MW: 258.44
  • Catalog: HSP
  • Density: 0.9±0.1 g/cm3
  • Boiling Point: 340.6±5.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 154.1±12.5 °C

MK2-IN-5

MK2-IN-5 is a Mk2 pseudosubstrate (Ki= 8 μM). MK2-IN-5 targets the protein interaction domain in the MAPK pathway. MK2-IN-5 inhibits HSP25 and HSP27 phosphorylation[1][2][3].

  • CAS Number: 474713-20-7
  • MF: C61H113N21O16
  • MW: 1396.68
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Apatorsen sodium

Apatorsen (sodium) is an antisense oligonucleotide designed to bind to Hsp27 mRNA, resulting in the inhibition of the production of Hsp27 protein.

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

HSP90-IN-13

HSP90-IN-13 (compound 5k) is a highly potent HSP90 pan inhibitor with an IC50 value of 25.07 nM. HSP90-IN-13 has multi-target activity against EGFR, VEGFR-2 and Topoisomerase-2. HSP90-IN-13 causes cell cycle arrest at G2/M phase and induces apoptosis of MCF-7 cells through mitochondrial-mediated pathway[1].

  • CAS Number: 2446055-29-2
  • MF: C26H21N5O3S
  • MW: 483.54
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Arimoclomol

Arimoclomol (BRX-220 free base) is a co-inducer of heat shock proteins (HSP).

  • CAS Number: 289893-25-0
  • MF: C14H20ClN3O3
  • MW: 314.78800
  • Catalog: HSP
  • Density: 1.32g/cm3
  • Boiling Point: 539.2ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 279.9ºC

Arimoclomol maleate

Arimoclomol maleate is a co-inducer of heat shock proteins (HSP).

  • CAS Number: 289893-26-1
  • MF: C18H24ClN3O7
  • MW: 429.85200
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JG-98

JG-98 is an allosteric heat shock protein 70 (Hsp70) inhibitor with anti-cancer activities, which disrupts Hsp70 interaction with a co-chaperone Bag3 and affects signaling pathways important for cancer development[1][2][3].

  • CAS Number: 1456551-16-8
  • MF: C24H21Cl2N3OS3
  • MW: 534.54
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Gamitrinib TPP

Gamitrinib TPP is a GA mitochondrial matrix inhibitor. Gamitrinib TPP is offered as the hexafluorophosphate salt (Cat# HY-102007A).

  • CAS Number: 1131626-46-4
  • MF: C52H65N3O8P
  • MW: 891.059999999999
  • Catalog: HSP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A