S-methyl DM1

Name: S-methyl DM1
Brand: TargetMol
SKU: T12805
Rating: 4.5 (1 reviews)

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Catalog No. T12805Cas No. 912569-84-7

S-methyl DM1, a thiomethyl derivative of Maytansine, binds to tubulin (Kd of 0.93 μM) and inhibits microtubule polymerization.

S-methyl DM1

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Catalog No. T12805Cas No. 912569-84-7

S-methyl DM1, a thiomethyl derivative of Maytansine, binds to tubulin (Kd of 0.93 μM) and inhibits microtubule polymerization.

Pack Size	Price	USA Warehouse	Global Warehouse
25 mg	$1,670	6-8 weeks	6-8 weeks
50 mg	$2,180	6-8 weeks	6-8 weeks
100 mg	$2,800	6-8 weeks	6-8 weeks

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In Stock Estimated shipping dateUSA Warehouse[1-2 days] Global Warehouse[5-7 days]

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Product Introduction

Bioactivity

Description	S-methyl DM1, a thiomethyl derivative of Maytansine, binds to tubulin (Kd of 0.93 μM) and inhibits microtubule polymerization.
Targets&IC50	Tubulin:(kd)0.93 μM
In vitro	S-methyl DM1, the primary cellular or liver metabolite of antibody-maytansinoid conjugates prepared with thiol-containing maytansinoids DM1[1], inhibits microtubule assembly at a half-maximal concentration of 4 μM. At 100 nM, S-methyl-DM1 (84%) suppresses dynamic instability more effectively than Maytansine (45%). Tritiated S-methyl-DM1 binds to 37 high-affinity sites per microtubule (Kd of 0.1 μM)[1]. Minimal inhibition occurs at 200 pM and is maximal at 3 nM. S-methyl DM1 (IC50 of 330 pM) is slightly more potent than Maytansine (IC50 of 710 pM)[2]. In MCF7 cells, S-methyl DM1 induces up to 80% accumulation of cells in G2/M compared to 30% in controls[2].

Chemical Properties

Molecular Weight	752.31
Formula	C₃₆H₅₀ClN₃O₁₀S
Cas No.	912569-84-7
Smiles	C[C@]12[C@@](O1)([C@H](C)[C@@]3(C[C@](O)([C@H](OC)/C=C/C=C(\C)/CC4=CC(N(C)C(=O)C[C@@H]2OC([C@@H](N(C(CCSC)=O)C)C)=O)=C(Cl)C(OC)=C4)NC(=O)O3)[H])[H]
Relative Density.	1.32 g/cm3 (Predicted)

Storage & Solubility Information

Storage

Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature.

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Please enter your animal experiment information in the following box and click Calculate to obtain the stock solution preparation method and in vivo formula preparation method:

For example, if the intended dosage is 10 mg/kg for animals weighing 20 g , with a dosing volume of 100 μL per animal, TargetMol | Animal experiments

and a total of 10 animals are to be administered, using a formulation of TargetMol | reagent

10% DMSO+ 40% PEG300+ 5% Tween 80+ 45% Saline/PBS/ddH₂O , the resulting working solution concentration would be 2 mg/mL.

Stock Solution Preparation:

Dissolve 2 mg of the compound in 100 μL DMSO TargetMol | reagent to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.

Preparation of the In Vivo Formulation:

1) Add 100 μL of the DMSO TargetMol | reagent stock solution to 400 μL PEG300 and mix thoroughly until the solution becomes clear.

2) Add 50 μL Tween 80 and mix well until fully clarified.

3) Add 450 μL Saline,PBS or ddH₂O TargetMol | reagent and mix thoroughly until a homogeneous solution is obtained.

This example is provided solely to demonstrate the use of the In Vivo Formulation Calculator and does not constitute a recommended formulation for any specific compound. Please select an appropriate dissolution and formulation strategy based on your experimental model and route of administration.

All co-solvents required for this protocol, includingDMSO, PEG300/PEG400, Tween 80, SBE-β-CD, and Corn oil, are available for purchase on the TargetMol website.

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