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GSK525762

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By Targets:	Epigenetic Reader Domain (7) ERK (1) Ligands for Target Protein for PROTAC (4) Reference Standards (2)
By Research Areas:	Cancer (7)

Targets Recommended: GSK-3

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-13032

Molibresib Maximum Cited Publications 21 Publications Verification I-BET762; GSK525762; GSK525762A	Epigenetic Reader Domain	Cancer
Molibresib (I-BET762; GSK525762) is a BET bromodomain inhibitor with IC₅₀ of 32.5-42.5 nM.

HY-13032B

Molibresib besylate Maximum Cited Publications 21 Publications Verification GSK 525762C; I-BET 762 besylate	Epigenetic Reader Domain ERK	Cancer
Molibresib besylate (GSK 525762C; I-BET 762 besylate) is an orally active pan-BET inhibitor that targets and binds to BRD2, BRD3, BRD4 and BRDT. By competitively occupying acetylated lysine binding sites, Molibresib besylate disrupts the interaction between BET proteins and chromatin, thereby effectively inhibiting MYC expression and target gene transcription. Molibresib besylate exhibits broad antiproliferative activity, which not only inhibits cancer cell growth and induces growth arrest, but also downregulates mitosis-related genes and upregulates the level of p-ERK1/2. When combined with MEK inhibitors, Molibresib besylate shows a significant synergistic effect, reduces tumor burden in mouse models of leukemia, modulates the immune microenvironment and prolongs survival. Molibresib besylate is widely applicable to research related to acute myeloid leukemia, multiple myeloma, triple-negative breast cancer, small-cell lung cancer and various advanced refractory solid tumors .

HY-107443

I-BET762 carboxylic acid Molibresib carboxylic acid; GSK525762A carboxylic acid; PROTAC BRD4-binding moiety 2	Ligands for Target Protein for PROTAC Epigenetic Reader Domain	Cancer
I-BET762 carboxylic acid (Molibresib carboxylic acid) is an I-BET762-based warhead ligand for conjugation reactions of PROTAC targeting on BET. I-BET762 carboxylic acid (Molibresib carboxylic acid) is a BRD4 inhibitor with a pIC₅₀ of 5.1 .

HY-13032A

GSK 525768A 1 Publications Verification	Epigenetic Reader Domain	Cancer
GSK 525768A is the inactive enantiomer of GSK525762A. GSK 525768A has no activity towards BET.

HY-107443A

(R)-I-BET762 carboxylic acid (R)-Molibresib carboxylic acid; (R)-GSK525762A carboxylic acid; (R)-PROTAC BRD4-binding moiety 2	Ligands for Target Protein for PROTAC Epigenetic Reader Domain	Cancer
(R)-I-BET762 carboxylic acid, the R-enantiomer of I-BET762 carboxylic acid (HY-107443). I-BET762 carboxylic acid is an I-BET762-based warhead ligand for conjugation reactions of PROTAC targeting on BET. I-BET762 carboxylic acid is a BRD4 inhibitor with a pIC₅₀ value of 5.1 .

HY-107443R

I-BET762 carboxylic acid (Standard) Molibresib carboxylic acid (Standard); GSK525762A carboxylic acid (Standard); PROTAC BRD4-binding moiety 2 (Standard)	Reference Standards Ligands for Target Protein for PROTAC Epigenetic Reader Domain	Cancer
I-BET762 carboxylic acid (Standard) is the analytical standard of I-BET762 carboxylic acid (HY-107443). This product is intended for research and analytical applications. I-BET762 carboxylic acid (Molibresib carboxylic acid) is an I-BET762-based warhead ligand for conjugation reactions of PROTAC targeting on BET. I-BET762 carboxylic acid (Molibresib carboxylic acid) is a BRD4 inhibitor with a pIC₅₀ of 5.1 .

HY-107443AR

(R)-I-BET762 carboxylic acid (Standard) (R)-Molibresib carboxylic acid (Standard); (R)-GSK525762A carboxylic acid (Standard); (R)-PROTAC BRD4-binding moiety 2 (Standard)	Reference Standards Ligands for Target Protein for PROTAC Epigenetic Reader Domain	Cancer
(R)-I-BET762 carboxylic acid (Standard) is the analytical standard of (R)-I-BET762 carboxylic acid (HY-107443A). This product is intended for research and analytical applications. (R)-I-BET762 carboxylic acid, the R-enantiomer of I-BET762 carboxylic acid (HY-107443). I-BET762 carboxylic acid is an I-BET762-based warhead ligand for conjugation reactions of PROTAC targeting on BET. I-BET762 carboxylic acid is a BRD4 inhibitor with a pIC₅₀ value of 5.1 .

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BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

MedchemExpress Validation 03

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred

MedchemExpress Validation 04

MedchemExpress Validation

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GSK525762

Inhibitors & Agonists