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L3750

Sigma-Aldrich

β-Lactose

≤30% α-anomer basis, ≥99% total lactose basis

Synonyme(s) :

β-D-Gal-(1→4)-β-D-Glc

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100 G
135,00 €
500 G
432,00 €
1 KG
796,00 €

135,00 €

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Devis pour commande en gros
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Sélectionner une taille de conditionnement

Changer de vue
100 G
135,00 €
500 G
432,00 €
1 KG
796,00 €

About This Item

Formule empirique (notation de Hill) :
C12H22O11
Numéro CAS:
5965-66-2
Poids moléculaire :
342.30
Numéro CE :
227-751-9
Numéro MDL:
MFCD00064521
Code UNSPSC :
12352201
ID de substance PubChem :
24896352
Nomenclature NACRES :
NA.25

135,00 €

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Devis pour commande en gros

Source biologique

bovine milk

Essai

≥99% total lactose basis

Forme

powder

Concentration

≥30% (α-anomer)

Couleur

white to off-white

Solubilité

water: 50 mg/mL, clear, colorless

Température de stockage

room temp

Chaîne SMILES 

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/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/t3-,4-,5+,6+,7-,8-,9-,10-,11-,12+/m1/s1

Clé InChI

GUBGYTABKSRVRQ-DCSYEGIMSA-N

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Catégories apparentées

Description générale

Lactose is an important disaccharide in human nutrition, culinary goods, and pharmaceuticals. β-lactose is an isomeric form that is rarely found in nature.[1]

Application

β-Lactose has been used:
  • to treat HL-1 cells followed by phorbol dibutyrate (PDB) treatment to study if protein kinase C (PKC) -stimulated accumulation is mediated through galectin-3[2]
  • as a component of a media to analyze the extracellular production of protein[3]
  • along with recombinant galectin-3 to treat cells for the detection of galectin-3 cell surface binding[4]
  • along with recombinant galectin-3 or a control protein to stimulate T cells for apoptosis assay[4]

Actions biochimiques/physiologiques

Beta-Lactose is the beta-pyranose form of the compound lactose.
Lactose, an excipient in a various medication, is used as an additive in a variety of foods. It is utilized as a commercial additive in the food industry due to its texture, flavor, and adhesive characteristics.[1]

Autres remarques

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

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
0000437235
0000437235
0000437234
0000437234
0000366777

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Benjamin D Grant et al.
Analytical chemistry, 92(16), 11305-11309 (2020-07-02)
The SARS-CoV-2 pandemic has created an unprecedented need for rapid diagnostic testing to enable the efficient treatment and mitigation of COVID-19. The primary diagnostic tool currently employed is reverse transcription polymerase chain reaction (RT-PCR), which can have good sensitivity and
A tool for monitoring Trichoderma harzianum: I. Transformation with the GUS gene by protoplast technology
Thrane C, et al.
Phytopathology, 85(11), 1428-1435 (1995)
Detlef Ritter et al.
Toxicology in vitro : an international journal published in association with BIBRA, 63, 104714-104714 (2019-11-11)
Due to the increasing need of new treatment options against bacterial lung infections, novel antimicrobial peptides (AMPs) are under development. Local bioavailability and less systemic exposure lead to the inhalation route of administration. Combining AMPs with nanocarriers (NCs) into nanosystems
Preparation and characterization of high purity anhydrous beta-Lactose from alpha-Lactose monohydrate at mild temperature
Lopez-Pablos AL, et al.
International Journal of Polymer Science (2018)
Logan K Smith et al.
eLife, 10 (2021-08-10)
Despite the mechanisms of central and peripheral tolerance, the mature B cell compartment contains cells reactive for self-antigen. How these cells are poised not to respond and the mechanisms that restrain B cell responses to low-affinity endogenous antigens are not
Afficher tous les articles scientifiques apparentés

Questions

1–3 of 3 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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  3. Is there a milled lactose product available with a particle size specification of 50 microns or less?

    1 answer

    1. it is noted that there are several lactose products available, but none of them have a size specification of less than 50 microns or 350 mesh. The product specifications primarily indicate that the product should appear in powder or crystal form. None of the available lactose products meet the criteria to be described as milled

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