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Sigma-Aldrich

Lactulose

≥98.0% (HPLC)

Synonym(s):

4-O-β-D-Galactopyranosyl-D-fructofuranose, 4-O-β-D-Galactopyranosyl-D-fructose

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About This Item

Empirical Formula (Hill Notation):
C12H22O11
CAS Number:
4618-18-2
Molecular Weight:
342.30
Beilstein/REAXYS Number:
93773
EC Number:
225-027-7
MDL number:
MFCD00151469
UNSPSC Code:
12352201
PubChem Substance ID:
57651848
NACRES:
NA.25

assay

≥98.0% (HPLC)

form

solid

optical activity

[α]20/D −48±2°, 24 hr, c = 1% in H2O

color

white to off-white

mp

169  °C ((336 °F ))

storage temp.

room temp

SMILES string

OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[C@@](O)(CO)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O

InChI

1S/C12H22O11/c13-1-4-6(16)7(17)8(18)11(21-4)22-9-5(2-14)23-12(20,3-15)10(9)19/h4-11,13-20H,1-3H2/t4-,5-,6+,7+,8-,9-,10+,11+,12+/m1/s1

InChI key

JCQLYHFGKNRPGE-WJONTELPSA-N

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General description

Lactulose is a synthetic derivative of lactose. It is made up of one molecule of galactose and one molecule of fructose.

Application

Lactulose has been used in the preparation of milk.
Lactulose, a disaccharide composed of fructose and galactose units, is used as an osmolyte that relieves constipation and supports probiotic processes in the intestine and colon. Lactulose helps stabilize blood glucose and insulin levels.

Biochem/physiol Actions

Lactulose helps to decrease the concentration of blood ammonia in the treatment of hepatic encephalopathy. It is also used to treat constipation as an osmotic laxative. This non-absorbable disaccharide is catabolized through the bacterial flora to short chain fatty acids. The enzymes of the mammalian digestive tract do not have the ability to digest lactulose.

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Lactulose enemas in the treatment of hepatic encephalopathy. Do we help or harm?
de Lorenzo-Pinto A, et al.
Revista espa?ola de Enfermedades Digestivas : Organo Oficial de la Sociedad Espa?ola de Patologia Digestiva (2017)
Gastrointestinal drugs
Small Animal Clinical Pharmacology, 469-497 (2008)
Use of lactulose as prebiotic and its influence on the growth, acidification profile and viable counts of different probiotics in fermented skim milk
Oliveira R P D S, et al.
International Journal of Food Microbiology, 145(1), 22-27 (2011)
Meiyan Wang et al.
Journal of agricultural and food chemistry, 66(12), 3155-3160 (2018-03-13)
Aging and oxidative-related events are closely associated with the oxidative damages induced by excess reactive oxygen species (ROS). The phytochemicals nobiletin (NBT) and tangeretin (TAN) and their 5-demethylated derivatives 5-demethylnobiletin (5-DN) and 5-demethyltangeretin (5-DT) are the representative polymethoxyflavone (PMF) compounds
Tara Raftery et al.
United European gastroenterology journal, 3(3), 294-302 (2015-07-03)
Vitamin D (vitD) supplementation may prolong remission in Crohn's disease (CD); however, the clinical efficacy and mechanisms are unclear. To determine changes in intestinal permeability (IP), antimicrobial peptide (AMP) concentrations and disease markers in CD, in response to vitD supplementation.
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