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L254

Sigma-Aldrich

D-Lactose monohydrate

ACS reagent

Synonym(s):

β-D-Gal-(1→4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Milk sugar

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About This Item

Empirical Formula (Hill Notation):
C12H22O11 · H2O
CAS Number:
64044-51-5
Molecular Weight:
360.31
Beilstein/REAXYS Number:
3768231
EC Number:
200-559-2
MDL number:
MFCD00166994
UNSPSC Code:
12352100
PubChem Substance ID:
329817398
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

form

powder

optical activity

[α]22/D +52.4°, c = 4.5 in H2O

impurities

dextrose, passes test
 sucrose, passes test
≤0.005% insolubles
4.0-6.0% water

ign. residue

≤0.03%

mp

219 °C (dec.)

cation traces

Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP)

SMILES string

O.OC[C@@H](O)[C@@H](O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C=O

InChI

1S/C12H22O11.H2O/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12;/h1,4-12,14-21H,2-3H2;1H2/t4-,5+,6+,7+,8-,9-,10+,11+,12-;/m0./s1

InChI key

HBDJFVFTHLOSDW-XBLONOLSSA-N

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Application

  • Synthesis of lactose-based surfactants: Research by Enayati, Gong, and Abbaspourrad demonstrated the use of d-Lactose monohydrate in the synthesis of lactose lauryl ester, employing aluminosilicate zeolite as a catalyst. This study presents a method for producing non-ionic surfactants, highlighting d-Lactose monohydrate′s role in industrial and pharmaceutical applications (Enayati et al., 2019).

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Scientific reports, 1, 78-78 (2012-02-23)
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Segregation of the protein bovine serum albumin (BSA) and lactose in thin aqueous films during drying was investigated by examining the composition of the dried films using inverse micro Raman spectroscopy (IMRS) and X-ray photoelectron spectroscopy (XPS) sputter-depth profiling. The
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