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  5. α-Lactose hydrate

α-Lactose hydrate  (Synonyms: α-D-Lactose hydrate)

Cat. No.: HY-W087904
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α-Lactose (hydrate) (α-D-Lactose (hydrate)) is the principal carbohydrate in the milk of most mammals. α-Lactose (hydrate) consists of glucose and galactose and exists in the form of two anomers, α and β. α-Lactose (hydrate) has many uses in the food and pharmaceutical industries, such as a free-flowing or agglomerating agent, a diluent for pigments, flavors, or enzymes.

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

α-Lactose hydrate Chemical Structure

α-Lactose hydrate Chemical Structure

CAS No. : 5989-81-1

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Solid + Solvent
10 mM * 1 mL in DMSO
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Based on 1 publication(s) in Google Scholar

Other Forms of α-Lactose hydrate:

α-Lactose hydrate Related Antibodies

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Description

α-Lactose (hydrate) (α-D-Lactose (hydrate)) is the principal carbohydrate in the milk of most mammals. α-Lactose (hydrate) consists of glucose and galactose and exists in the form of two anomers, α and β. α-Lactose (hydrate) has many uses in the food and pharmaceutical industries, such as a free-flowing or agglomerating agent, a diluent for pigments, flavors, or enzymes[1][2][3].

Molecular Weight

360.31

Formula

C12H24O12
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

OC[C@@H](O[C@@H]([C@@H]([C@H]1O)O)O)[C@H]1O[C@@H]2O[C@@H]([C@@H]([C@@H]([C@H]2O)O)O)CO.O
Structure Classification
Initial Source

milk of humans and domestic animals
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (277.54 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 2.7754 mL 13.8769 mL 27.7539 mL
5 mM 0.5551 mL 2.7754 mL 5.5508 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 (6.94 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 (6.94 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 2.7754 mL 13.8769 mL 27.7539 mL 69.3847 mL
5 mM 0.5551 mL 2.7754 mL 5.5508 mL 13.8769 mL
10 mM 0.2775 mL 1.3877 mL 2.7754 mL 6.9385 mL
15 mM 0.1850 mL 0.9251 mL 1.8503 mL 4.6256 mL
20 mM 0.1388 mL 0.6938 mL 1.3877 mL 3.4692 mL
25 mM 0.1110 mL 0.5551 mL 1.1102 mL 2.7754 mL
30 mM 0.0925 mL 0.4626 mL 0.9251 mL 2.3128 mL
40 mM 0.0694 mL 0.3469 mL 0.6938 mL 1.7346 mL
50 mM 0.0555 mL 0.2775 mL 0.5551 mL 1.3877 mL
60 mM 0.0463 mL 0.2313 mL 0.4626 mL 1.1564 mL
80 mM 0.0347 mL 0.1735 mL 0.3469 mL 0.8673 mL
100 mM 0.0278 mL 0.1388 mL 0.2775 mL 0.6938 mL
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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:

α-Lactose5989-81-1α-D-LactoseOthersSugarMilkMonohydrateInhibitorinhibitorinhibit

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