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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.

wgk_germany

WGK 3

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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Mina Ha et al.
Journal of preventive medicine and public health = Yebang Uihakhoe chi, 41(5), 345-354 (2008-10-02)
Our objective is to review and summarize the previous studies on the health effects of exposure to oil spills in order to make suggestions for mid- and long-term study plans regarding the health effects of the Hebei Spirit oil spill
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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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