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D-Lactose monohydrate_Molecular_structure_CAS_64044-51-5)
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D-Lactose monohydrate

Catalog No. L254 Name Sigma Aldrich
CAS Number 64044-51-5 Website http://www.sigmaaldrich.com
M. F. C12H24O12 Telephone 1-800-521-8956
M. W. 360.31176 Fax
Purity Email
Storage Chembase ID: 130805

SYNONYMS

Title
D-乳糖 一水合物
IUPAC name
(2R,3R,4R,5R)-2,3,5,6-tetrahydroxy-4-{[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}hexanal hydrate
IUPAC Traditional name
(2R,3R,4R,5R)-2,3,5,6-tetrahydroxy-4-{[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}hexanal hydrate
Synonyms
β-D-Gal-(1→4)-D-Glc
4-O-β-D-吡喃半乳糖基-D-葡萄糖
Milk sugar
4-O-β-D-Galactopyranosyl-D-glucose
乳糖

DATABASE IDS

MDL Number MFCD00166994
Beilstein Number 3768231
EC Number 200-559-2
CAS Number 64044-51-5

PROPERTIES

Cation Traces Fe: ≤5 ppm
Cation Traces heavy metals (as Pb): ≤5 ppm
Empirical Formula (Hill Notation) C12H22O11 · H2O
Grade ACS reagent
Ignition Residue ≤0.03%
Impurities dextrose, passes test
Impurities sucrose, passes test
Impurities ≤0.005% insolubles
Impurities 4.0-6.0-6.0% water
Melting Point 219 °C (dec.)
Optical Rotation [α]22/D +52.4°, c = 4.5 in H2O
MSDS Link Download
Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
German water hazard class 3

DETAILS

Description (English)
Packaging
2 kg in poly bottle
25 g in poly bottle
Description (简体中文)
包装
2 kg in poly bottle
25 g in poly bottle

REFERENCES