lactose
(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol
Molecular Identity
lactose
(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol
PubChem CID: 440995
Lactose is a glycosylglucose disaccharide, found most notably in milk, that consists of D-galactose and D-glucose fragments bonded through a beta-14 glycosidic linkage. The glucose fragment can be in either the alpha- or beta-pyranose form, whereas the galactose fragment can only have the beta-pyranose form. It has a role as a human metabolite.
2D Structure
Properties
C12H22O11
Molecular Formula
342.30
Molecular Weight
g/mol
342.1162
Exact Mass
Da
-4.7
XLogP
Drug-like (Lipinski: < 5)
190
TPSA
May have limited oral absorption
8
H-Bond Donors
11
H-Bond Acceptors
382
Complexity
SMILES
Canonical SMILES
SMILES: Synonyms(20)
lactoseMilk sugarbeta-D-Gal-(1->4)-D-Glcbeta-D-Galp-(1->4)-D-Glcp(+)-LactoseCHEBI:177161-beta-D-Galactopyranosyl-4-D-glucopyranosebeta-D-galactopyranosyl-(1->4)-D-glucopyranoseLactinAnhydrous lactoseLactose anhydrous4-(beta-D-Galactosido)-D-glucoseAletobioseGalactinumTablettose
Data from PubChem (NCBI)
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Drug Network
Trials and conditions connected to lactose
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