2. Antibody-drug Conjugate/ADC Related
  3. Drug-Linker Conjugates for ADC
  4. SN38-COOH

SN38-COOH is used for the synthesis of antibody-drug conjugates (ADCs). SN-38 is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 inhibits DNA and RNA synthesis.

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

SN38-COOH Chemical Structure

SN38-COOH Chemical Structure

CAS No. : 2170118-23-5

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5 mg USD 250 In-stock
10 mg USD 380 In-stock
25 mg USD 750 In-stock
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Based on 1 publication(s) in Google Scholar

SN38-COOH Related Antibodies

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Description

SN38-COOH is used for the synthesis of antibody-drug conjugates (ADCs). SN-38 is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 inhibits DNA and RNA synthesis[1][2].

Molecular Weight

492.48

Formula

C26H24N2O8
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

OC(CCC(O[C@]1(C2=C(COC1=O)C(N3C(C(C(C3)=C(C4=C5)CC)=NC4=CC=C5O)=C2)=O)CC)=O)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (203.05 mM; ultrasonic and warming and heat to 60°C; 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 2.0305 mL 10.1527 mL 20.3054 mL
5 mM 0.4061 mL 2.0305 mL 4.0611 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. 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)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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: 2.5 mg/mL (5.08 mM); Clear solution; Need ultrasonic

    This protocol yields a clear solution of 2.5 mg/mL.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

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).
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
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. 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 2.0305 mL 10.1527 mL 20.3054 mL 50.7635 mL
5 mM 0.4061 mL 2.0305 mL 4.0611 mL 10.1527 mL
10 mM 0.2031 mL 1.0153 mL 2.0305 mL 5.0763 mL
15 mM 0.1354 mL 0.6768 mL 1.3537 mL 3.3842 mL
20 mM 0.1015 mL 0.5076 mL 1.0153 mL 2.5382 mL
25 mM 0.0812 mL 0.4061 mL 0.8122 mL 2.0305 mL
30 mM 0.0677 mL 0.3384 mL 0.6768 mL 1.6921 mL
40 mM 0.0508 mL 0.2538 mL 0.5076 mL 1.2691 mL
50 mM 0.0406 mL 0.2031 mL 0.4061 mL 1.0153 mL
60 mM 0.0338 mL 0.1692 mL 0.3384 mL 0.8461 mL
80 mM 0.0254 mL 0.1269 mL 0.2538 mL 0.6345 mL
100 mM 0.0203 mL 0.1015 mL 0.2031 mL 0.5076 mL
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SN38-COOH Related Classifications

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.

Keywords:

SN38-COOH2170118-23-5Drug-Linker Conjugates for ADCInhibitorinhibitorinhibit

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SN38-COOH
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