All Photos(2)

L3625

Sigma-Aldrich

α-Lactose monohydrate

≥99% total lactose basis (GC)

Synonym(s):
4-O-β-D-Galactopyranosyl-α-D-glucose, Milk sugar, β-D-Gal-(1→4)-α-D-Glc
Empirical Formula (Hill Notation):
C12H22O11 · H2O
CAS Number:
Molecular Weight:
360.31
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

biological source

bovine milk

assay

≥99% total lactose basis (GC)

form

powder

impurities

≤0.05% Glucose
≤4% β-lactose

SMILES string

[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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Packaging

1 kg in poly bottle
5 kg in poly drum

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%.
alpha-Lactose is the primary sugar present in milk and the main energy source to a newborn mammalian through its mother′s milk. It is digested by the intestinal lactase (EC 3.2.1.108), an enzyme expressed in newborns. The enzyme′s activity declines following weaning which can lead to lactose intolerance in adult mammals.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

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

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