2. Apoptosis Metabolic Enzyme/Protease
  3. Apoptosis Endogenous Metabolite
  4. Oxythiamine

Oxythiamine  (Synonyms: Hydroxythiamin)

Cat. No.: HY-107430 Purity: 96.36%
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Oxythiamine (Hydroxythiamin), an analogue of anti-metabolite, can suppress the non-oxidative synthesis of ribose and induce cell apoptosis. Oxythiamine is a thiamine antagonist and inhibits transketolase (TK). Oxythiamine inhibits cancer cell apoptosis and inhibits cell proliferation.

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Oxythiamine Chemical Structure

Oxythiamine Chemical Structure

CAS No. : 136-16-3

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10 mM * 1 mL in DMSO
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Based on 2 publication(s) in Google Scholar

Other Forms of Oxythiamine:

Oxythiamine Related Antibodies

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Description

Oxythiamine (Hydroxythiamin), an analogue of anti-metabolite, can suppress the non-oxidative synthesis of ribose and induce cell apoptosis. Oxythiamine is a thiamine antagonist and inhibits transketolase (TK). Oxythiamine inhibits cancer cell apoptosis and inhibits cell proliferation[1][2][3].

IC50 & Target

Vitamin B1, Thiamine, Transketolase[1].
In Vitro

Oxythiamine (0-40 μM, 2 days) inhibits cell viability of MIA PaCa-2 cells (IC50: 14.95 μM)[1].
Oxythiamine chloride hydrochloride (0-500 μM, 48 h) suppresses expression of 14-3-3 protein beta/alpha in MIA PaCa-2 cells[1].
Oxythiamine (0.1-100 μM, 6-48 h) inhibits A549 cell proliferation[3].
Oxythiamine (0.1-100 μM, 24 h) induces A549 cell apoptosis[3].
Oxythiamine (0-20 μM) inhibits the invasion and migration (IC50: 8.75 μM) of Lewis lung carcinoma (LLC) cells[4].

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

Oxythiamine Related Antibodies

Cell Viability Assay[1]

Cell Line: MIA PaCa-2 cells
Concentration: 0-40 μM
Incubation Time: 2 days
Result: Inhibited cell viability with an IC50 of 14.95 μM.

Western Blot Analysis[1]

Cell Line: MIA PaCa-2 cells
Concentration: 0, 5, 50, 500 μM
Incubation Time: 48 h
Result: Inhibited 14-3-3 protein beta/alpha expression, and increased alpha-enolase.
In Vivo

Oxythiamine (100-500 mg/kg, i.p. 4 days) inhibits tumor growth in Ehrlich's ascites tumor hosting mice[2].
Oxythiamine (250 or 500 mg/kg, daily for 5 week) inhibits tumor cell metastasis via inhibition of MMPs in mice implanted (s.c.) with LLC cells[4].

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

Animal Model: Ehrlich's ascites tumor hosting mice[2]
Dosage: 100-500 mg/kg
Administration: i.p., 4 days
Result: Inhibited tumor growth by 43% at 300 mg/kg and 84% at 500 mg/kg.
Molecular Weight

266.34

Formula

C12H16N3O2S
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

CC1=C(CCO)SC=[N+]1CC2=CN=C(C)NC2=O
Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

-20°C, sealed storage, away from moisture

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

Solvent & Solubility
In Vitro: 

DMSO : 51.67 mg/mL (194.00 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 3.7546 mL 18.7730 mL 37.5460 mL
5 mM 0.7509 mL 3.7546 mL 7.5092 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). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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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: ≥ 2.58 mg/mL (9.69 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.58 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.8 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: ≥ 2.58 mg/mL (9.69 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.58 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.8 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).

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

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: 98.17%

COA (245 KB) LCMS (109 KB)

Handling Instructions (2659 KB)
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). 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 3.7546 mL 18.7730 mL 37.5460 mL 93.8650 mL
5 mM 0.7509 mL 3.7546 mL 7.5092 mL 18.7730 mL
10 mM 0.3755 mL 1.8773 mL 3.7546 mL 9.3865 mL
15 mM 0.2503 mL 1.2515 mL 2.5031 mL 6.2577 mL
20 mM 0.1877 mL 0.9386 mL 1.8773 mL 4.6932 mL
25 mM 0.1502 mL 0.7509 mL 1.5018 mL 3.7546 mL
30 mM 0.1252 mL 0.6258 mL 1.2515 mL 3.1288 mL
40 mM 0.0939 mL 0.4693 mL 0.9386 mL 2.3466 mL
50 mM 0.0751 mL 0.3755 mL 0.7509 mL 1.8773 mL
60 mM 0.0626 mL 0.3129 mL 0.6258 mL 1.5644 mL
80 mM 0.0469 mL 0.2347 mL 0.4693 mL 1.1733 mL
100 mM 0.0375 mL 0.1877 mL 0.3755 mL 0.9386 mL
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Oxythiamine 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:

Oxythiamine136-16-3HydroxythiaminApoptosisEndogenous MetaboliteCancerEhrlich's ascitestumorLLCA549lung cancerInhibitorinhibitorinhibit

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