1. GPCR/G Protein Neuronal Signaling
  2. Somatostatin Receptor
  3. DOTA-LM3 TFA

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.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

DOTA-LM3 TFA Chemical Structure

DOTA-LM3 TFA Chemical Structure

Size Price Stock Quantity
1 mg USD 110 In-stock
5 mg USD 320 In-stock
10 mg USD 500 Get quote
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100 mg   Get quote  

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Based on 1 publication(s) in Google Scholar

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Description

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[1][2].

In Vitro

177Lu-DOTA-LM3 TFA is tolerated. 177Lu-DOTA-LM3 TFA in the whole body and in the kidneys, spleen, and metastases, resulting in higher mean absorbed organ and tumor doses[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight

1664.18

Formula

C71H94ClF3N16O21S2

Appearance

Solid

Color

White to off-white

Sequence

DOTA-[p-Cl-Phe-cyclo(D-Cys-Tyr-D-4-amino-Phe(carbamoyl)-Lys-Thr-Cys)D-Tyr-NH2]

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Sealed storage, away from moisture and light, under nitrogen

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen)

Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (60.09 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.6009 mL 3.0045 mL 6.0090 mL
5 mM 0.1202 mL 0.6009 mL 1.2018 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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Concentration
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Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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C2

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V2

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 0.6009 mL 3.0045 mL 6.0090 mL 15.0224 mL
5 mM 0.1202 mL 0.6009 mL 1.2018 mL 3.0045 mL
10 mM 0.0601 mL 0.3004 mL 0.6009 mL 1.5022 mL
15 mM 0.0401 mL 0.2003 mL 0.4006 mL 1.0015 mL
20 mM 0.0300 mL 0.1502 mL 0.3004 mL 0.7511 mL
25 mM 0.0240 mL 0.1202 mL 0.2404 mL 0.6009 mL
30 mM 0.0200 mL 0.1001 mL 0.2003 mL 0.5007 mL
40 mM 0.0150 mL 0.0751 mL 0.1502 mL 0.3756 mL
50 mM 0.0120 mL 0.0601 mL 0.1202 mL 0.3004 mL
60 mM 0.0100 mL 0.0501 mL 0.1001 mL 0.2504 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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DOTA-LM3 TFA Related Classifications

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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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DOTA-LM3 TFA
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