1. Metabolic Enzyme/Protease Neuronal Signaling Membrane Transporter/Ion Channel Anti-infection
  2. Endogenous Metabolite Calcium Channel Bacterial
  3. (2R,3R)-Butane-2,3-diol

(2R,3R)-Butane-2,3-diol is a non-covalent, reversible agonist targeting lanthanum (La3+)-sensitive calcium channels in bacteria (e.g., Escherichia coli) with an EC50 of approximately 25 mM. (2R,3R)-Butane-2,3-diol binds to calcium channel proteins or related complexes, induces channel opening, promotes extracellular calcium influx, and triggers intracellular calcium transients, which may regulate bacterial physiological activities such as growth, metabolism, and signal transduction. (2R,3R)-Butane-2,3-diol mediates bacterial-host cell signaling interactions and affects the metabolic balance of intestinal microorganisms, and can be used to study lactose intolerance and other related diseases.

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

(2R,3R)-Butane-2,3-diol Chemical Structure

(2R,3R)-Butane-2,3-diol Chemical Structure

CAS No. : 24347-58-8

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Liquid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
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10 mM * 1 mL in DMSO USD 55 In-stock
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Based on 1 publication(s) in Google Scholar

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Description

(2R,3R)-Butane-2,3-diol is a non-covalent, reversible agonist targeting lanthanum (La3+)-sensitive calcium channels in bacteria (e.g., Escherichia coli) with an EC50 of approximately 25 mM. (2R,3R)-Butane-2,3-diol binds to calcium channel proteins or related complexes, induces channel opening, promotes extracellular calcium influx, and triggers intracellular calcium transients, which may regulate bacterial physiological activities such as growth, metabolism, and signal transduction. (2R,3R)-Butane-2,3-diol mediates bacterial-host cell signaling interactions and affects the metabolic balance of intestinal microorganisms, and can be used to study lactose intolerance and other related diseases[1].

IC50 & Target

La3+-sensitive calcium channel

25 mM (EC50)

In Vitro

(2R,3R)-Butane-2,3-diol (100 mM; 1-2 min) significantly induces a rapid increase in intracellular free Ca2+ concentration in the Escherichia coli intracellular calcium transient assay, with the peak value increasing by about 1-2 μM compared with the control group, and this effect is dependent on the external Ca2+ concentration (0.1-10 mM)[1].
(2R,3R)-Butane-2,3-diol (5-200 mM; 5 min) activates the E. coli Ca2+ channel in a dose-dependent manner in the concentration-dependent assay, with EC50 of about 25 mM. Under the condition of 10 mM external Ca2+, the peak intracellular Ca2+ could reach 25 μM[1].

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

Molecular Weight

90.12

Formula

C4H10O2

CAS No.
Appearance

Liquid (Density: 0.992 g/cm3)

Color

Colorless to light yellow

SMILES

C[C@@H](O)[C@H](O)C

Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Pure form -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (1109.63 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 11.0963 mL 55.4816 mL 110.9632 mL
5 mM 2.2193 mL 11.0963 mL 22.1926 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
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Concentration
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Volume
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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

=
Concentration (final)

C2

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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    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (27.74 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.
  • Protocol 2

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

    Solubility: ≥ 2.5 mg/mL (27.74 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 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 (25.0 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)

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, PEG300/PEG400, Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Purity & Documentation

Purity: 99.17%

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 11.0963 mL 55.4816 mL 110.9632 mL 277.4079 mL
5 mM 2.2193 mL 11.0963 mL 22.1926 mL 55.4816 mL
10 mM 1.1096 mL 5.5482 mL 11.0963 mL 27.7408 mL
15 mM 0.7398 mL 3.6988 mL 7.3975 mL 18.4939 mL
20 mM 0.5548 mL 2.7741 mL 5.5482 mL 13.8704 mL
25 mM 0.4439 mL 2.2193 mL 4.4385 mL 11.0963 mL
30 mM 0.3699 mL 1.8494 mL 3.6988 mL 9.2469 mL
40 mM 0.2774 mL 1.3870 mL 2.7741 mL 6.9352 mL
50 mM 0.2219 mL 1.1096 mL 2.2193 mL 5.5482 mL
60 mM 0.1849 mL 0.9247 mL 1.8494 mL 4.6235 mL
80 mM 0.1387 mL 0.6935 mL 1.3870 mL 3.4676 mL
100 mM 0.1110 mL 0.5548 mL 1.1096 mL 2.7741 mL
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Product Name:
(2R,3R)-Butane-2,3-diol
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HY-W015954
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