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mitochondrial ETC complex I

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By Targets:	Mitochondrial Metabolism (3) Bacterial (1) CHIKV (1) Fungal (1) HIF/HIF Prolyl-Hydroxylase (1) MMP (1) NOD-like Receptor (NLR) (1) Oxidative Phosphorylation (1) Reactive Oxygen Species (ROS) (1) VEGFR (1)
By Research Areas:	Cancer (4) Infection (1)

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Natural
Products

Targets Recommended: Mitochondrial Metabolism Mitophagy

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-155554

SCAL-255	Mitochondrial Metabolism Oxidative Phosphorylation Reactive Oxygen Species (ROS) MMP	Cancer
SCAL-255 is a potent mitochondrial complex I (CI) inhibitor with an IC₅₀ of 1.14 μM. SCAL-255 blocks mitochondrial function, inhibits oxygen consumption rate (OCR), induces reactive oxygen species (ROS) production, and reduces MMP. SCAL-255 can be used in the research of oxidative phosphorylation (OXPHOS)-dependent cancers, such as colorectal cancer (CRC) and acute myeloid leukemia (AML), etc .

HY-162515

8-OAc	Mitochondrial Metabolism	Cancer
8-OAc is a potent and selective mitochondrial *electron transport chain (ETC) complex* I** inhibitor. 8-OAc exhibits cytotoxicity against cancer cell lines .

HY-N12887

Mycothiazole	Mitochondrial Metabolism	Others Cancer
Mycothiazole is an inhibitor for mitochondrial electron transport chain (ETC) complex I. Mycothiazole exhibits cytotoxicity in cancer cells Huh7 (IC₅₀ is 55.8 μM), U87 and MCF7. Mycothiazole induces apoptosis in Huh7. Mycothiazole utilizes the unfolded protein response (UPR) and heat shock response (HSR) pathway involved transcription factors ATFS-1 and HSF1, to extend the lifespan of C. elegans .

HY-N10650

Caulerpin	Fungal Bacterial HIF/HIF Prolyl-Hydroxylase VEGFR NOD-like Receptor (NLR) CHIKV	Infection Cancer
Caulerpin is an orally active natural product with anti-tumor, anti-viral, anti-oxidant, anti-fungal, anti-bacteria and analgesic activities. Caulerpin acts as an inhibitor of mitochondrial ETC complex I and acetylcholinesterase. Caulerpin blocks hypoxia-induced activation of HIF-1α protein, inhibits VEGF secretion and tumor angiogenesis under hypoxic conditions, reduces the expression of NLRP3 and the production of pro-inflammatory cytokines, and suppresses the load of Mycobacterium tuberculosis. Caulerpin can be used in studies related to breast cancer, prostate cancer, tuberculosis and viral infections .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-N12887

Mycothiazole	Natural Products Marine natural products Sponge Source Classification	Mitochondrial Metabolism
Mycothiazole is an inhibitor for mitochondrial electron transport chain (ETC) complex I. Mycothiazole exhibits cytotoxicity in cancer cells Huh7 (IC₅₀ is 55.8 μM), U87 and MCF7. Mycothiazole induces apoptosis in Huh7. Mycothiazole utilizes the unfolded protein response (UPR) and heat shock response (HSR) pathway involved transcription factors ATFS-1 and HSF1, to extend the lifespan of C. elegans .

HY-N10650

Caulerpin	Structural Classification Natural Products Marine algae Marine natural products Source Classification	Fungal Bacterial HIF/HIF Prolyl-Hydroxylase VEGFR NOD-like Receptor (NLR) CHIKV
Caulerpin is an orally active natural product with anti-tumor, anti-viral, anti-oxidant, anti-fungal, anti-bacteria and analgesic activities. Caulerpin acts as an inhibitor of mitochondrial ETC complex I and acetylcholinesterase. Caulerpin blocks hypoxia-induced activation of HIF-1α protein, inhibits VEGF secretion and tumor angiogenesis under hypoxic conditions, reduces the expression of NLRP3 and the production of pro-inflammatory cytokines, and suppresses the load of Mycobacterium tuberculosis. Caulerpin can be used in studies related to breast cancer, prostate cancer, tuberculosis and viral infections .

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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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mitochondrial ETC complex I

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