1. Anti-infection Antibody-drug Conjugate/ADC Related Cell Cycle/DNA Damage Apoptosis
  2. Antibiotic ADC Cytotoxin DNA Alkylator/Crosslinker Necroptosis Apoptosis
  3. Duocarmycin SA

Duocarmycin SA is an orally active antitumor antibiotic with an IC50 of 10 pM. Duocarmycin SA is an extremely potent cytotoxic agent capable of inducing a sequence-selective alkylation of duplex DNA. Duocarmycin SA demonstrates synergistic cytotoxicity against glioblastoma multiforme (GBM) cells treated with proton radiation in vitro.

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

Duocarmycin SA Chemical Structure

Duocarmycin SA Chemical Structure

CAS No. : 130288-24-3

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1 mg USD 840 In-stock
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10 mg USD 3700 In-stock
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Based on 1 publication(s) in Google Scholar

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Description

Duocarmycin SA is an orally active antitumor antibiotic with an IC50 of 10 pM[1]. Duocarmycin SA is an extremely potent cytotoxic agent capable of inducing a sequence-selective alkylation of duplex DNA. Duocarmycin SA demonstrates synergistic cytotoxicity against glioblastoma multiforme (GBM) cells treated with proton radiation in vitro[2].

IC50 & Target

Duocarmycins

 

Cellular Effect
Cell Line Type Value Description References
L1210 IC50
0.01 nM
Compound: 1, natural
Cytotoxicity against mouse L1210 cells assessed as growth inhibition after 72 hrs by phosphatase assay
Cytotoxicity against mouse L1210 cells assessed as growth inhibition after 72 hrs by phosphatase assay
[PMID: 23627265]
U138-MG IC50
0.0018 nM
Compound: DSA
Anticlonogenic activity against human U138MG cells assessed as decrease in cell survival after 14 days by methylene blue staining based method
Anticlonogenic activity against human U138MG cells assessed as decrease in cell survival after 14 days by methylene blue staining based method
[PMID: 29650288]
U138-MG IC50
0.4 nM
Compound: DSA
Cytotoxicity against human U138MG cells assessed as decrease in cell viability after 72 hrs by trypan blue dye based assay
Cytotoxicity against human U138MG cells assessed as decrease in cell viability after 72 hrs by trypan blue dye based assay
[PMID: 29650288]
U138-MG IC50
0.443 nM
Compound: DSA
Anticlonogenic activity against human U138MG cells assessed as decrease in cell survival pretreated for 2 hrs followed by 1 to 8 Gy dose of proton irradiation measured after 10 to 14 days by methylene blue staining based method
Anticlonogenic activity against human U138MG cells assessed as decrease in cell survival pretreated for 2 hrs followed by 1 to 8 Gy dose of proton irradiation measured after 10 to 14 days by methylene blue staining based method
[PMID: 29650288]
In Vitro

Duocarmycin SA (DSA) (0.1-1 nM; 72 hours) inhibits U-138 cell viability in a dose-dependent manner and activates apoptotic and necrotic pathways[2].
Duocarmycin SA (0.1 nM; 72 hours) sensitizes human glioma cells to proton irradiation[2].

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

Cell Viability Assay[1]

Cell Line: U-138 cells
Concentration: 0.1, 0.5, 1 nM
Incubation Time: 72 hours
Result: Produced a significant concentration-dependent decrease in cell viability, with 65% cell survival observed at 0.1 nM, and plateauing at a minimum of 25% cell survival at 0.5 nM, with no increase in cytotoxicity observed at higher doses.
The IC50 of Duocarmycin SA for U-138 MG cells is 0.4 nM.
Demonstrated strong cytotoxicity, with an IC50 of 0.0018 nM (1.8 pM).

Apoptosis Analysis[1]

Cell Line: U-138 cells
Concentration: 0.001, 0.1 nM
Incubation Time: 3 or 14 days
Result: Increased radio sensitivity of U-138 GBM cells by the activation of apoptotic and necrotic pathways.
Greatly reduced survival fractions at different proton radiation doses (1-8 Gy).
In Vivo

Duocarmycin SA (0.143 mg/kg, i.p., single dose) shows antitumor activity in murine lymphocytic leukemia P388 transplanted in CDF1 mice and shows a significant 30% increase in life span[3].

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

Animal Model: Murine lymphocytic leukemia P388 transplanted in CDF1 mice [3]
Dosage: 0.143 mg/kg
Administration: Intraperitoneal injection (i.p.), single dose
Result: Showed a significant 30% increase in life span.
Molecular Weight

477.47

Formula

C25H23N3O7

CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

O=C(C(N1)=CC([C@@]23[C@@](C3)([H])CN(C(C(N4)=CC5=C4C(OC)=C(OC)C(OC)=C5)=O)C2=C6)=C1C6=O)OC

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

-20°C, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (104.72 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.0944 mL 10.4719 mL 20.9437 mL
5 mM 0.4189 mL 2.0944 mL 4.1887 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 (stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

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

This equation is commonly abbreviated as: C1V1 = C2V2

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In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 5 mg/mL (10.47 mM); Clear solution

    This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 5 mg/mL (10.47 mM); Clear solution

    This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL Corn oil, and mix evenly.

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

Dosage

mg/kg

Animal weight
(per animal)

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Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

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).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.55%

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 (stored 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
DMSO 1 mM 2.0944 mL 10.4719 mL 20.9437 mL 52.3593 mL
5 mM 0.4189 mL 2.0944 mL 4.1887 mL 10.4719 mL
10 mM 0.2094 mL 1.0472 mL 2.0944 mL 5.2359 mL
15 mM 0.1396 mL 0.6981 mL 1.3962 mL 3.4906 mL
20 mM 0.1047 mL 0.5236 mL 1.0472 mL 2.6180 mL
25 mM 0.0838 mL 0.4189 mL 0.8377 mL 2.0944 mL
30 mM 0.0698 mL 0.3491 mL 0.6981 mL 1.7453 mL
40 mM 0.0524 mL 0.2618 mL 0.5236 mL 1.3090 mL
50 mM 0.0419 mL 0.2094 mL 0.4189 mL 1.0472 mL
60 mM 0.0349 mL 0.1745 mL 0.3491 mL 0.8727 mL
80 mM 0.0262 mL 0.1309 mL 0.2618 mL 0.6545 mL
100 mM 0.0209 mL 0.1047 mL 0.2094 mL 0.5236 mL
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Help & FAQs
  • 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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Duocarmycin SA
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