2. Signaling Pathways
  3. Antibody-Drug Conjugate/ADC Related
  4. Radionuclide-Drug Conjugates (RDCs)
  5. RDC Peptide Isoform

RDC Peptide

RDC peptides serve as tumor-targeting vectors in radionuclide-drug conjugates (RDCs), directing diagnostic or therapeutic radionuclides to disease-associated receptors while enabling localized radiation delivery and molecular imaging[1][2]. Mechanistically, peptide-based RDCs bind membrane targets with high specificity and concentrate radioactive payloads at tumor sites, where emitted α-, β-, or Auger-particle radiation induces localized biological damage and can generate cross-fire effects within tumor tissue[1][3]. This targeting strategy is highly relevant to oncology because RDCs integrate receptor-directed delivery with radionuclide therapy, supporting both tumor visualization and therapeutic intervention in a single platform[1][2]. Peptide ligands represent a distinct RDC targeting class alongside monoclonal antibodies and small molecules, offering a compact molecular format that is widely used in radiotheranostic design[2][4]. A clinically established example is lutetium (^177Lu) dotatate, a radiolabeled somatostatin analog peptide that targets somatostatin receptor-expressing tumors and demonstrates the feasibility of peptide-mediated radionuclide delivery in cancer management[5]. Therefore, RDC peptide design focuses on receptor recognition, stable radionuclide attachment through chelator-based chemistry, and efficient tumor accumulation, making peptide-based RDCs important tools for translational radiopharmaceutical research and precision oncology development[1][2].

RDC Peptide Related Products (28):

Cat. No. Product Name Effect Purity
  • HY-106244
    DOTATATE
    		99.95%
    DOTATATE is a DOTA-conjugated peptide. DOTATATE can be labelled with radionuclides for positron emission tomography (PET) imaging and peptide receptor radionuclide research (PRRT). DOTATATE can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-106244A
    DOTATATE acetate
    		99.95%
    DOTATATE acetate is a DOTA-conjugated peptide. DOTATATE acetate can be labelled with radionuclides for positron emission tomography (PET) imaging and peptide receptor radionuclide research (PRRT). DOTATATE (acetate) can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-P5126
    DOTA-LM3
    		99.37%
    DOTA-LM3 is a somatostatin receptor (SSTR) antagonist. LM3 refers to p-Cl-Phe- cyclo(D-Cys-Tyr-D-4-amino-Phe(carbamoyl)-Lys-Thr-Cys)D-Tyr- NH2, as well as a somatostatin antagonist. DOTA-LM3 is often isotopically labeled for tracing tumors in vivo, such as 177Lu-DOTA-LM3 and 68 Ga-DOTA-LM3. 68 Ga-DOTA-LM3 shows favorable biodistribution, high tumor uptake, good tumor retention, and few safety concerns. 177Lu-DOTA-LM3 can be used for research in DOTATOC-negative liver metastases, such as pancreatic NET and extensive tumor thrombosis. DOTA-LM3 can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-P5128
    DOTA-JR11
    		99.14%
    DOTA-JR11 is a somatostatin receptor 2 （SSTR2）antagonist. DOTA-JR11 can be labeled by 68Ga, used for paired imaging in neuroendocrine tumors (NETs) research. DOTA-JR11 can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-P10131
    3BP-3940
    		99.49%
    3BP-3940 is a highly potent and selective peptide inhibitor of FAP that targets cancer-associated fibroblasts (CAFs) in the tumor microenvironment. 3BP-3940 can be labeled with radionuclides (such as Ga-68) for precise tumor imaging or Lu-177 for the development of targeted anticancer technologies. 3BP-3940 accumulates in tumor lesions and can be used to diagnose and inhibit various solid cancers and CAFs-related diseases.
  • HY-P11850
    PTP peptide
    PTP peptide is a specific Plectin-1 binder. PTP peptide can serve as a component of imaging agents; when conjugated with magnetofluorescent nanoparticles, it enables the detection of small pancreatic ductal adenocarcinomas and precancerous lesions via in vivo confocal microscopy and MRI. When conjugated with imaging agents, PTP peptide specifically targets pancreatic ductal adenocarcinoma cells, and can be used for tumor visualization and compound delivery. PTP peptide is applicable to research related to pancreatic ductal adenocarcinoma.
  • HY-P11814
    cTMTP1
    cTMTP1 (Cyclic TMTP1) is the cyclic form of TMTP1 (HY-P11815). TMTP1 is a tumor-targeting peptide that selectively targets highly metastatic tumor cells. The cTMTP1-based [68Ga]Ga-DOTA-cTMTP1 probe is used for visualization of hepatocellular carcinoma. cTMTP1 can form a 68Ga-DOTA radiotracer that accumulates in highly metastatic cervical cancer cells and is used for microPET tumor visualization. cTMTP1 is applicable to research related to hepatocellular carcinoma and cervical cancer.
  • HY-P11887
    VHPKQHR
    VHPKQHR is a peptide-based delivery enhancer that binds to VCAM-1. VHPKQHR enables intracellular internalization of relevant nanomaterials and facilitates the targeted delivery of miRNA inhibitors to inflamed endothelial cells and endothelial cells activated by disturbed flow. When conjugated with magnetic mesoporous silica nanoparticles, VHPKQHR achieves targeted accumulation at atherosclerotic plaque sites. When displayed on the surface of polyelectrolyte complex micelles, VHPKQHR enhances the relevant effects of anti-miR-92a in Apoe-/- mice. When conjugated with ultrasmall superparamagnetic iron oxide nanoparticles, VHPKQHR forms a contrast agent for T1-weighted magnetic resonance imaging. VHPKQHR can be used in research related to atherosclerosis, stenosis and rheumatoid arthritis.
  • HY-P3440
    WL12
    		99.98%
    WL12 is a specifically targeting programmed death ligand 1 (PD-L1) binding peptide. WL12 can be radiolabeled by different radionuclides, generating radiotracers, which can assess the tumor PD-L1 expression.
  • HY-P2112
    DOTA-NOC
    		99.22%
    DOTA-NOC (DOTA-Nal3-octreotide) is a high-affinity ligand of somatostatin receptor subtypes 2, 3 and 5. DOTA-NOC can be used for labeling with various radiometals, and development of radiopeptide imaging. DOTA-NOC can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-D2363
    DOTA.SA.FAPi TFA
    		99.26%
    DOTA.SA.FAPi TFA is a selective FAP inhibitor with an IC50 value of 0.9 nM against FAP. DOTA.SA.FAPi TFA forms stable complexes with 68Ga and serves as a PET radiotracer for preclinical imaging of FAP-expressing tumors. DOTA.SA.FAPi TFA can be used in the research of colorectal adenocarcinoma and various other cancers.
  • HY-P10273A
    DOTA-Octreotide TFA
    		99.50%
    DOTA-Octreotide TFA is composed of chelator DOTA and Octreotide (HY-P0036). DOTA-Octreotide TFA is used for research of cancer through combination with radioactive elements. DOTA-Octreotide TFA can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-P10945
    FAP targeting peptide for FXX489
    		99.49%
    FAP targeting peptide for FXX489 is the polypeptide part of Unlabeled FXX489 (HY-P10944). Unlabeled FXX489 is a fibroblast activation protein (FAP)-targeting ligand.
  • HY-P2218
    Anditixafortide
    		99.99%
    Anditixafortide (Pentixather) is an endoradiotherapeutic vector. Anditixafortide is a CXCR4-targeting peptide derivative. Anditixafortide can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-W046355
    Fmoc-D-Dap(Boc)-OH
    		99.56%
    Fmoc-D-Dap(Boc)-OH is an amino acid derivative with an Fmoc protecting group, which can be used to synthesize bioactive peptide mimetics, such as DOTA-modified peptides and their metal chelates with cancer diagnostic effects.
  • HY-P5126A
    DOTA-LM3 TFA
    		98.75%
    DOTA-LM3 TFA is a somatostatin receptor (SSTR) antagonist. LM3 refers to p-Cl-Phe- cyclo(D-Cys-Tyr-D-4-amino-Phe(carbamoyl)-Lys-Thr-Cys)D-Tyr- NH2, as well as a somatostatin antagonist. DOTA-LM3 TFA is often isotopically labeled for tracing tumors in vivo, such as 177Lu-DOTA-LM3 TFA and 68 Ga-DOTA-LM3 TFA. 68 Ga-DOTA-LM3 TFA shows favorable biodistribution, high tumor uptake, good tumor retention, and few safety concerns. 177Lu-DOTA-LM3 TFA can be used for research in DOTATOC-negative liver metastases, such as pancreatic NET and extensive tumor thrombosis. DOTA-LM3 (TFA) can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-158266
    DOTA-PSMA-EB-01
    DOTA-PSMA-EB-01 (Compound LNC1003) is a specific inhibitor of PSMA (IC50= 10.77 nM).DOTA-PSMA-EB-01 enhances the uptake and retention time of 177Lu in tumors. DOTA-PSMA-EB-01 can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-P10292
    NOTA-Pep-1L
    		98.60%
    NOTA-Pep-1L specifically targets the IL13RA2 receptor for tumor imaging. NOTA-Pep-1L can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
  • HY-P2022
    Pentetreotide
    		98.13%
    Pentetreotide is a diethylenetriaminopentaacetic (DTPA) conjugate of Octreotide (HY-P0036). Pentetreotide is a somatostatin analog that, when labeled with 111In, can be used for nuclear medicine imaging. Somatostatin receptor scintigraphy with Pentetreotide is effective in visualizing neuroendocrine tumors, and its metastasis.
  • HY-P10239
    Tyr3-Octreotate
    		99.76%
    Tyr3-Octreotate is a ligand for somatostatin receptor subtype 2 (sst2), with an IC50 value of 1.3 nM against sst2 when labeled with [111In-DTPA], and an IC50 value of 1.6 nM against sst2 when labeled with [90Y-DOTA]. Radiolabeled Tyr3-Octreotate generates cell-associated radioactivity, and acts as both a tumor growth inhibitor and a tumor cytotoxic agent. When radiolabeled with 177Lu or 90Y, Tyr3-Octreotate serves as a peptide receptor radionuclide therapy (PRRT) analog. Tyr3-Octreotate can be used in studies related to pancreatic tumors.