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Merck

61345

D-Lactose monohydrate

≥98.0% (HPLC)

Synonym(s):

β-D-Gal-(1→4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Milk sugar

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₹6,732.00

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₹17,556.75

₹6,732.00


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About This Item

Empirical Formula (Hill Notation):
C12H22O11 · H2O
CAS Number:
Molecular Weight:
360.31
EC Number:
200-559-2
UNSPSC Code:
12352201
PubChem Substance ID:
Beilstein/REAXYS Number:
3768231
MDL number:

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Product Name

D-Lactose monohydrate, ≥98.0% (HPLC)

InChI key

HBDJFVFTHLOSDW-XBLONOLSSA-N

InChI

1S/C12H22O11.H2O/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12;/h1,4-12,14-21H,2-3H2;1H2/t4-,5+,6+,7+,8-,9-,10+,11+,12-;/m0./s1

SMILES string

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

assay

≥98.0% (HPLC)

form

solid

optical activity

[α]20/D +52±2°, 22 hr, c = 10% in H2O

impurities

3.0-7.0% water

color

colorless

solubility

H2O: 0.1 g/mL, clear, colorless (warm)

Quality Level

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1 of 4

This Item
61339L254Y0001750
assay

≥98.0% (HPLC)

assay

≥99% (HPLC)

assay

-

assay

-

Quality Level

100

Quality Level

100

Quality Level

200

Quality Level

-

solubility

H2O: 0.1 g/mL, clear, colorless (warm)

solubility

H2O: 0.5 M at 20 °C, clear, colorless

solubility

-

solubility

-

form

solid

form

solid

form

powder

form

-

color

colorless

color

colorless

color

-

color

-

impurities

3.0-7.0% water

impurities

insoluble matter, passes filter test

impurities

dextrose, passes test, sucrose, passes test, ≤0.005% insolubles, 4.0-6.0% water

impurities

-

Application


  • Synthesis of lactose lauryl ester in organic solvents using aluminosilicate zeolite as a catalyst.: This research explores the synthesis of lactose lauryl ester, utilizing D-lactose monohydrate and organic solvents in the presence of aluminosilicate zeolite as a catalyst, highlighting its potential applications in food chemistry and surfactants (Enayati et al., 2019).

  • Synthesis and characterization of lactose fatty acid ester biosurfactants using free and immobilized lipases in organic solvents.: The paper presents the synthesis and characterization of lactose fatty acid esters using D-lactose monohydrate and various lipases, focusing on their potential as biosurfactants in food and cosmetic industries (Enayati et al., 2018).

Biochem/physiol Actions

Lactose is a dissacharide formed by the condensation of one galactose and one glucose molecule. Lactose is the major sugar in the milk of most species, typically present between 2-8%. The enzyme lactase hydrolyzes lactose to its constituent monosaccharides. In neonates, glucose released via the action of lactase is a major energy source.

Other Notes

Sales restrictions may apply
To gain a comprehensive understanding of our extensive range of Disaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Erica S Rodriguez et al.
Journal of the science of food and agriculture, 99(4), 1682-1690 (2018-09-13)
Chia oil possesses a very high content of polyunsaturated fatty acids, mainly α-linolenic acid. This characteristic makes this oil possess beneficial properties to health but gives it a high susceptibility to the oxidation process. Microencapsulation and the addition of natural
Mojtaba Enayati et al.
Food chemistry, 279, 401-407 (2019-01-07)
Sugar-based biosurfactants are safer and healthier alternatives to synthetic surfactants especially for use in the food industry. In this work, biosurfactants were synthesized via the esterification of lactose with lauric acid in different organic solvents without using lipase or other
Jiseon Yang et al.
NPJ biofilms and microbiomes, 7(1), 70-70 (2021-09-08)
While sequencing technologies have revolutionized our knowledge of microbial diversity, little is known about the dynamic emergent phenotypes that arise within the context of mixed-species populations, which are not fully predicted using sequencing technologies alone. The International Space Station (ISS)
Maryam Enteshari et al.
Foods (Basel, Switzerland), 9(6) (2020-06-18)
The simultaneous production of lactulose (LAU), lactobionic acid (LBA), and organic acids from sweet and acid whey permeate (SWP and AWP) via catalytic synthesis (5% Ru/C) was studied in a continuous stirred-tank reactor. At selected conditions (60 °C, 60 bar
J Nijdam et al.
Colloids and surfaces. B, Biointerfaces, 123, 53-60 (2014-09-30)
Segregation of the protein bovine serum albumin (BSA) and lactose in thin aqueous films during drying was investigated by examining the composition of the dried films using inverse micro Raman spectroscopy (IMRS) and X-ray photoelectron spectroscopy (XPS) sputter-depth profiling. The

Questions

1–2 of 2 Questions  
  1. 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/418/501/product-dating-information-06-25-mk.pdf

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  2. 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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