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G0886

Sigma-Aldrich

4-O-β-Galactopyranosyl-D-mannopyranose

≥98.0% (HPLC)

Synonym(s):

2-epi-Lactose

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About This Item

Empirical Formula (Hill Notation):
C12H22O11
CAS Number:
20869-27-6
Molecular Weight:
342.30
MDL number:
MFCD00070338
UNSPSC Code:
12352201
PubChem Substance ID:
24895027
NACRES:
NA.25

Quality Level

200

Assay

≥98.0% (HPLC)

form

powder

optical activity

[α]/D 24.00 to 30.00°, c = 9.00-11.00 mg/mL in water

technique(s)

HPLC: suitable

color

white to off-white

solubility

H2O: soluble 49.00-51.00 mg/mL, clear to very slightly hazy, colorless

SMILES string

OCC1OC(OC2C(O)C(O)OC(CO)C2O)C(O)C(O)C1O

InChI

1S/C12H22O11/c13-1-3-5(15)7(17)8(18)12(22-3)23-10-6(16)4(2-14)21-11(20)9(10)19/h3-20H,1-2H2

InChI key

QIGJYVCQYDKYDW-UHFFFAOYSA-N

Related Categories

Application

4-O-β-Galactopyranosyl-D-mannopyranose (2-epi-Lactose, 2-epilactose), a nondigestible epimer of lactose, may be used to study its value as a prebiotic sugar that promotes intestinal mineral, especially calcium, absorption.

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 3

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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Mina Ha et al.
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Takuya Suzuki et al.
Journal of agricultural and food chemistry, 58(3), 1927-1932 (2010-01-15)
We previously showed that epilactose, a nondigestible disaccharide, increased calcium (Ca) absorption in the small intestines of rats. Here, we explored the mechanism(s) underlying the epilactose-mediated promotion of Ca absorption in a ligated intestinal segment of anesthetized rats. The addition
Wanmeng Mu et al.
Applied microbiology and biotechnology, 97(5), 1821-1827 (2013-01-16)
Epilactose (4-O-β-D-galactopyranosyl-D-mannose), an epimer of lactose, is a rare disaccharide existing extremely small quantities in heat-treated milk, in which epilactose is produced by non-enzymatic catalysis from lactose. This disaccharide is a kind of non-digestible carbohydrate, has a good prebiotic effect

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