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Merck

L3625

Sigma-Aldrich

α-乳糖 一水合物

≥99% total lactose basis (GC)

别名:

β-D-Gal-(1→4)-α-D-Glc, 4-O-β- D -半乳糖基-α- D -葡萄糖, 乳糖

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选择尺寸

1 KG
$106.00
5 KG
$280.00

$106.00


国内现货,预计发货时间2025年4月11日详情


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选择尺寸

变更视图
1 KG
$106.00
5 KG
$280.00

About This Item

经验公式(希尔记法):
C12H22O11 · H2O
CAS号:
分子量:
360.31
MDL编号:
UNSPSC代码:
12352201
PubChem化学物质编号:
NACRES:
NA.25

$106.00


国内现货,预计发货时间2025年4月11日详情


获取大包装报价

生物来源

bovine milk

方案

≥99% total lactose basis (GC)

表单

powder

杂质

≤0.05% Glucose
≤4% β-lactose

颜色

white to off-white

mp

219  °C ((426 °F ))

溶解性

water: 100 mg/mL, clear, colorless

储存温度

room temp

SMILES字符串

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

InChI

1S/C12H22O11.H2O/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17;/h3-20H,1-2H2;1H2/t3-,4-,5+,6+,7-,8-,9-,10-,11+,12+;/m1./s1

InChI key

WSVLPVUVIUVCRA-KPKNDVKVSA-N

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应用


  • 晶体尺寸是乳糖结晶的关键特性,影响奶粉的微观结构、表面化学和重构。本研究以α-乳糖一水合物为标准品,研究晶体尺寸如何影响奶粉的物理性质,这对于优化乳制品行业的生产工艺至关重要(Qi X et al., 2024)。

  • 预测硫酸特布他林与α-乳糖一水合物的干粉吸入混合物的内聚和粘附颗粒相互作用强度。:探讨了α-乳糖一水合物作为赋形剂与硫酸特布他林一起在优化颗粒相互作用以增强可吸入治疗剂性能方面的关键作用(Ma CY et al., 2023)。

  • 滚压颗粒制片剂的太赫兹时域光谱研究。:本研究利用α-乳糖一水合物检查药物片剂的性质,为影响药物递送系统的材料特性提供了深入见解(Anuschek M et al., 2023)。

生化/生理作用

α-乳糖是牛奶中主要的糖,也是新生哺乳动物通过母乳喂养获得的主要能量来源。它能被肠道乳糖酶(EC 3.2.1.108)消化,肠道乳糖酶是一种在新生儿中表达的酶。断奶后,这种酶的活性下降,导致成年哺乳动物出现乳糖不耐受。
乳糖是由一个半乳糖和一个葡萄糖分子经过缩合反应形成的二糖。乳糖是大多数物种乳汁中主要的糖,含量通常为2-8%。

其他说明

为了全面了解我们针对客户研究提供的各种双糖产品,建议您访问我们的碳水化合物分类页面。

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Helena Montanuy et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 26(12), 3044-3057 (2020-02-02)
Fanconi anemia rare disease is characterized by bone marrow failure and a high predisposition to solid tumors, especially head and neck squamous cell carcinoma (HNSCC). Patients with Fanconi anemia with HNSCC are not eligible for conventional therapies due to high
Gwenola Le Dréan et al.
Nutrients, 11(9) (2019-08-24)
Oligosaccharides (OS) are commonly added to infant formulas, however, their physiological impact, particularly on adult health programming, is poorly described. In adult animals, OS modify microbiota and stimulate colonic fermentation and enteroendocrine cell (EEC) activity. Since neonatal changes in microbiota
Johannes Gursch et al.
Journal of pharmaceutical sciences, 104(10), 3481-3489 (2015-07-07)
Over the last years, continuous manufacturing has created significant interest in the pharmaceutical industry. Continuous filtration at low flow rates and high solid loadings poses, however, a significant challenge. A commercially available, continuously operating, dynamic cross-flow filtration device (CFF) is
Sha Liu et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 96, 132-142 (2015-07-30)
Co-administration of an inhaled corticosteroid and long acting beta agonist for chronic obstructive pulmonary disease has reduced mortality compared to either drug alone. This combination reduces exacerbations, hospitalization, emergency department visits and health care costs. A novel fixed-dose combination of

Questions

1–2 of 2 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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