1. Saccharides and Glycosides
  2. α-Lactose

α-Lactose (Synonyms: α-D-Lactose)

目录号: HY-N2514 纯度: >98.0%
产品使用指南

α-Lactose 是牛奶中的主要糖。Lactose 以 α 和 β 两个异构体的形式存在。α 形式通常以一水合物的形式结晶。

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α-Lactose Chemical Structure

α-Lactose Chemical Structure

CAS No. : 14641-93-1

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Description

α-Lactose (α-D-Lactose) is the major sugar present in milk. Lactose exists in the form of two anomers, α and β. The α form normally crystallizes as a monohydrate[1][2].

In Vitro

Lactose is a very important sugar because of its abundance in the milk of humans and domestic animals. Lactose is a valuable asset as a basic nutrient and the main substrate in fermentative processes that led to the production of fermented milk products, such as yogurt and kefir[3].

Molecular Weight

342.30

Formula

C₁₂H₂₂O₁₁

CAS No.

14641-93-1

SMILES

OC[C@H]([C@H](O)[C@H](O)[C@H]1O)O[C@@]1([H])O[C@@H]2[C@H](O[C@H](O)[C@H](O)[C@H]2O)CO

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°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: 

H2O : 62.5 mg/mL (182.59 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.9214 mL 14.6071 mL 29.2141 mL
5 mM 0.5843 mL 2.9214 mL 5.8428 mL
10 mM 0.2921 mL 1.4607 mL 2.9214 mL
*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。 -80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

References
  • 摩尔计算器

  • 稀释计算器

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

Keywords:

α-Lactoseα-D-LactoseOtherssugarmilkanomersmonohydratenutrientInhibitorinhibitorinhibit

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