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D-Lactose monohydrate

ACS reagent

4-O-β-D-Galactopyranosyl-D-glucose, Milk sugar, β-D-Gal-(1→4)-D-Glc
Empirical Formula (Hill Notation):
C12H22O11 · H2O
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level


ACS reagent

optical activity

[α]22/D +52.4°, c = 4.5 in H2O


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

ign. residue



219 °C (dec.)

cation traces

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

SMILES string




InChI key


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Related Categories

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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More Documents

Quotes and Ordering

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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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