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L3625

α-Lactose monohydrate

≥99% total lactose basis (GC)

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C12H22O11 · H2O
CAS Number:
5989-81-1
Molecular Weight:
360.31
NACRES:
NA.25
PubChem Substance ID:
57654326
UNSPSC Code:
12352201
MDL number:
MFCD00150747
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biological source

bovine milk

Quality Segment

200

assay

≥99% total lactose basis (GC)

form

powder

impurities

≤0.05% Glucose, ≤4% β-lactose

color

white to off-white

mp

219  °C ((426 °F ))

solubility

water: 100 mg/mL, clear, colorless

storage temp.

room temp

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

Application


  • Crystal size, a key character of lactose crystallization affecting microstructure, surface chemistry and reconstitution of milk powder.: This study uses alpha-lactose monohydrate as a standard to investigate how crystal size affects the physical properties of milk powder, which is crucial for optimizing production processes in the dairy industry (Qi X et al., 2024).

  • Predicting the Strength of Cohesive and Adhesive Interparticle Interactions for Dry Powder Inhalation Blends of Terbutaline Sulfate with alpha-Lactose Monohydrate.: Explores the critical role of alpha-lactose monohydrate, as an excipient together with terbutaline sulfate in optimizing particle interactions for enhanced performance of inhalable therapeutics (Ma CY et al., 2023).

  • Terahertz time-domain spectroscopy for the investigation of tablets prepared from roller compacted granules.: This research utilizes alpha-lactose monohydrate to examine the properties of pharmaceutical tablets, offering insights into material characteristics that affect drug delivery systems (Anuschek M et al., 2023).

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.

Other Notes

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

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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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