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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:
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 Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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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)
Gastrointestinal drugs
Small Animal Clinical Pharmacology, 469-497 (2008)
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)
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
C P Kelly et al.
Alimentary pharmacology & therapeutics, 37(2), 252-262 (2012-11-21)
Coeliac disease, an autoimmune disorder triggered by gluten ingestion, is managed by a gluten-free diet (GFD), which is difficult for many patients. Larazotide acetate is a first-in-class oral peptide that prevents tight junction opening, and may reduce gluten uptake and
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