2. Antibody-drug Conjugate/ADC Related
  3. ADC Cytotoxin
  4. MMAF-OMe

MMAF-OMe  (Synonyms: Monomethyl auristatin F methyl ester)

Cat. No.: HY-79256 Purity: 99.61%
COA Handling Instructions

Molarity Calculator

MMAF-Ome, an antitubulin agent, is also an ADC cytotoxin. MMAF-Ome inhibits several tumor cell lines with IC50s of 0.056 nM, 0.166 nM, 0.183 nM, and 0.449 nM for MDAMB435/5T4, MDAMB361DYT2, MDAMB468, and Raji (5T4-) cell lines, respectively.

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

MMAF-OMe Chemical Structure

MMAF-OMe Chemical Structure

CAS No. : 863971-12-4

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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of MMAF-OMe:

MMAF-OMe Related Antibodies

Top Publications Citing Use of Products

1 Publications Citing Use of MCE MMAF-OMe

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

MMAF-Ome, an antitubulin agent, is also an ADC cytotoxin. MMAF-Ome inhibits several tumor cell lines with IC50s of 0.056 nM, 0.166 nM, 0.183 nM, and 0.449 nM for MDAMB435/5T4, MDAMB361DYT2, MDAMB468, and Raji (5T4-) cell lines, respectively.

IC50 & Target

Auristatin

 

In Vitro

2.5F-Fc and 2.5F-Fc-MMAF have similar IC50 values (6.9±1.1 vs. 8.3±1.3 nM, respectively), indicating that MMAF conjugation has negligible impact on integrin-binding affinity[1].

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

MMAF-OMe Related Antibodies
Molecular Weight

745.99

Formula

C40H67N5O8
CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

CC[C@H](C)[C@@H]([C@@H](CC(N1[C@@H](CCC1)[C@@H]([C@@H](C)C(N[C@H](C(OC)=O)CC2=CC=CC=C2)=O)OC)=O)OC)N(C([C@H](C(C)C)NC([C@H](C(C)C)NC)=O)=O)C
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years

*The compound is unstable in solutions, freshly prepared is recommended.

Solvent & Solubility
In Vitro: 

DMSO : ≥ 100 mg/mL (134.05 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.3405 mL 6.7025 mL 13.4050 mL
5 mM 0.2681 mL 1.3405 mL 2.6810 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. The compound is unstable in solutions, freshly prepared is recommended.

  • 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 (3.35 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (3.35 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
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 compound is unstable in solutions, freshly prepared is recommended.

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: 99.62%

COA (254 KB) HNMR (264 KB) LCMS (90 KB)

Handling Instructions (2659 KB)
References
Cell Assay
[1]

Cells are seeded in a 96-well plate at a density of 2,000 cells per well and grown overnight at 37°C, 5% CO2 in the media described for each cell line above. Cells are subsequently treated with 100 μL of fresh media, containing varying concentrations of knottin-Fc fusion proteins or linker-modified MMAF, and incubated for 5 days at 37°C, 5% CO2. Cell proliferation is measured using the Cell Counting Kit-8 (CCK-8), by adding the water-soluble tetrazolium salt, WST-8, to each well in an amount equal to 10% of the culture volume. After incubation for 1 hour at 37°C, absorbance at 450 nm is measured with a Synergy H4 microtiter plate reader. Cell proliferation is expressed as a percentage of absorbance relative to the control of untreated cells. Percent maximum proliferation is then reported as (sample − background)/(control − background) × 100. Error bars represent the SD of experiments performed in triplicate.

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

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. The compound is unstable in solutions, freshly prepared is recommended.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.3405 mL 6.7025 mL 13.4050 mL 33.5125 mL
5 mM 0.2681 mL 1.3405 mL 2.6810 mL 6.7025 mL
10 mM 0.1341 mL 0.6703 mL 1.3405 mL 3.3513 mL
15 mM 0.0894 mL 0.4468 mL 0.8937 mL 2.2342 mL
20 mM 0.0670 mL 0.3351 mL 0.6703 mL 1.6756 mL
25 mM 0.0536 mL 0.2681 mL 0.5362 mL 1.3405 mL
30 mM 0.0447 mL 0.2234 mL 0.4468 mL 1.1171 mL
40 mM 0.0335 mL 0.1676 mL 0.3351 mL 0.8378 mL
50 mM 0.0268 mL 0.1341 mL 0.2681 mL 0.6703 mL
60 mM 0.0223 mL 0.1117 mL 0.2234 mL 0.5585 mL
80 mM 0.0168 mL 0.0838 mL 0.1676 mL 0.4189 mL
100 mM 0.0134 mL 0.0670 mL 0.1341 mL 0.3351 mL
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MMAF-OMe 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:

MMAF-OMe863971-12-4Monomethyl auristatin F methyl esterADC CytotoxinADC PayloadInhibitorinhibitorinhibit

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