描述
DOTATATE (DOTA?(Tyr³)?octreotate) is a synthetic eight-amino-acid peptide linked to the macrocyclic chelator DOTA. It binds strongly to somatostatin receptor subtype 2 (SSTR?), frequently overexpressed in neuroendocrine tumors (NETs). When labeled with radionuclides such as gallium?68 (^68Ga), lutetium?177 (^177Lu), or copper?64 (^64Cu), DOTATATE enables high-resolution PET imaging or serves as part of peptide receptor radionuclide therapy (PRRT) drug conjugates.
This research-grade peptide is produced in a GMP-compliant facility, with verified purity ?99.95% by HPLC, ensuring high consistency for research in PET imaging development, radiopharmaceutical design, and receptor-targeted therapy platforms.
For laboratory research use only. Not approved for clinical or therapeutic use.
Product Specifications
Parameter | Specification |
---|---|
Product Name | DOTATATE (DOTA?(Tyr³)?octreotate) |
Synonyms | DOTA?TATE; DOTA-octreotate; Oxodotreotide |
CAS Number | 177943?89?4 |
Molecular Formula | C??H??N??O??S? |
Molecular Weight | ~1435.6 Da |
Purity | ?99.95% (HPLC) |
Appearance | White to off-white lyophilized powder |
Solubility | Soluble in water, PBS, or DMSO |
Storage | ?20?°C, dry, protected from light |
Packaging Sizes | 1?mg, 5?mg, 10?mg vials; bulk on request |
Manufacturer | GMP-compliant peptide synthesis facility |
Intended Use | Laboratory research use only |
Mechanism of Action & Research Applications
DOTATATE targets somatostatin receptor subtype 2 (SSTR?) with high affinity, enabling selective localization in SSTR?-positive tissues. When labeled with radionuclides:
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^68Ga: used in PET imaging for high-resolution detection of neuroendocrine tumors
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^177Lu: part of PRRT for therapy of NETs by delivering targeted beta radiation
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^64Cu: another PET tracer for diagnostic applications
Research Applications:
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PET imaging probe development for neuroendocrine tumors (NETs)
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Preclinical design of peptide receptor radionuclide conjugates (RDCs/PRRT)
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Radiochemistry and dosimetry studies
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SSTR? receptor biology and binding assays
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Radiopharmaceutical formulation research
Side Effects (For Research Reference Only)
In experimental models involving radionuclide-labeled DOTATATE, possible effects include:
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Cellular radiotoxicity from beta or Auger electrons
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Receptor-mediated uptake variability
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Radiation-induced DNA damage in high-dose settings
These are context?dependent effects within lab models and not for therapeutic extrapolation.
Disclaimer
This peptide is manufactured in a GMP-compliant facility with high purity. It is strictly for laboratory research use only and not for human or veterinary use, nor for diagnosis or therapy.
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