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  4. L-Biotin

L-Biotin, also known as biotin, is a water-soluble vitamin that is an essential cofactor in the carboxylation of several enzymes. L-Biotin is involved in fatty acid synthesis and amino acid metabolism.

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L-Biotin Chemical Structure

L-Biotin Chemical Structure

CAS No. : 21788-37-4

Size Price Stock Quantity
1 mg USD 192 In-stock
5 mg USD 480 In-stock
10 mg USD 780 In-stock
25 mg USD 1560 In-stock
50 mg USD 2500 In-stock
100 mg USD 4000 In-stock
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Based on 1 publication(s) in Google Scholar

L-Biotin Related Antibodies

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Description

L-Biotin, also known as biotin, is a water-soluble vitamin that is an essential cofactor in the carboxylation of several enzymes. L-Biotin is involved in fatty acid synthesis and amino acid metabolism[1].

Molecular Weight

244.31

Formula

C10H16N2O3S
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(O)CCCC[C@H]1SC[C@@]([C@@]1([H])N2)([H])NC2=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 (409.32 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 4.0932 mL 20.4658 mL 40.9316 mL
5 mM 0.8186 mL 4.0932 mL 8.1863 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 (10.23 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 (10.23 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 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 4.0932 mL 20.4658 mL 40.9316 mL 102.3290 mL
5 mM 0.8186 mL 4.0932 mL 8.1863 mL 20.4658 mL
10 mM 0.4093 mL 2.0466 mL 4.0932 mL 10.2329 mL
15 mM 0.2729 mL 1.3644 mL 2.7288 mL 6.8219 mL
20 mM 0.2047 mL 1.0233 mL 2.0466 mL 5.1165 mL
25 mM 0.1637 mL 0.8186 mL 1.6373 mL 4.0932 mL
30 mM 0.1364 mL 0.6822 mL 1.3644 mL 3.4110 mL
40 mM 0.1023 mL 0.5116 mL 1.0233 mL 2.5582 mL
50 mM 0.0819 mL 0.4093 mL 0.8186 mL 2.0466 mL
60 mM 0.0682 mL 0.3411 mL 0.6822 mL 1.7055 mL
80 mM 0.0512 mL 0.2558 mL 0.5116 mL 1.2791 mL
100 mM 0.0409 mL 0.2047 mL 0.4093 mL 1.0233 mL
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L-Biotin 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:

L-Biotin21788-37-4OthersInhibitorinhibitorinhibit

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