alpha-D-Lactose

alpha-D-Lactose

CAS Number14641-93-1
Molecular FormulaC12H22O11
Molecular Weight342.297
InChI KeyGUBGYTABKSRVRQ-XLOQQCSPSA-N
LogP-3.28
Synonyms
  • alpha-Lactose
  • 4-O-beta-D-Galactopyranosyl-alpha-D-glucopyranose
  • alpha-D-Glucopyranose, 4-O-beta-D-galactopyranosyl-
  • 14641-93-1
  • alpha-D-Glucopyranose, 4-O-beta-D-galactopyranosyl-
  • 4-O-beta-D-Galactopyranosyl-alpha-glucopyranose
  • alpha-D-Lactose
  • GLUCOPYRANOSE (alpha-D), 4-Obeta-D-GALACTOPYRANOSYL-
  • Lactose, alpha
  • (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-{[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy}oxane-3,4,5-triol
  • 1-beta-delta-Galactopyranosyl-4-alpha-delta-glucopyranose
  • 4-O-Hexopyranosylhexose
  • 4-O-beta-D-galactopyranosyl-alpha-D-glucopyranose
  • Aletobiose
  • Dilactose
  • Fast-Flo Lactose
  • Flowlac 100
  • Galactinum
  • Glc-(4-1)Gal
  • Granulac 140M
  • Lactin
  • Lactin (carbohydrate)
  • Lactobiose
  • Lactohale 300
  • Lactose
  • Lactose Fast-flo
  • Lactose anhydride
  • Osmolactan
  • Pharmatosa DCL 21
  • Pharmatose 21
  • Pharmatose 325M
  • Pharmatose DCL 15
  • Prismalac
  • Respitose ML 003
  • Respitose SV 003
  • Saccharum lactin
  • Sachelac
  • Sorbalac 400
  • Sorbolac 400
  • Spherolac
  • Super-Tab
  • Tablettose
  • Tablettose 70
  • Tablettose 80
  • Zeparox EP
  • a-Lactose
  • beta-D-Galp-(1->4)-alpha-D-Glcp

Applications:

HPLC Separation of Sugars on Primesep S2 Column

July 14, 2011

Five sugars were separated on a Primesep S2 HILIC column with LC/MS compatible conditions. Various mobile phase produce different selectivity and separation. Method can be used as alternative to aminopropyl column. Primesep S2 column is stable and does not undergo rapid hydrolysis like aminopropyl columns.

Condition

Column Primesep S2, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O
Buffer AmAc pH 5.0, Formic Acid
Flow Rate 1.0 ml/min
Detection ELSD 50C

 

Description

Class of Compounds
Drug, Acid, Monocarboxylic acid,  Hydrophilic, Ionizable, Hormone
Analyzing Compounds Fructose, Glucose, Sucrose, Lactose, Maltose, Sorbitol, Sucrose, Alfa D-Lactose, Beta D–Lactose, Raffinose

Application Column

Primesep S2

The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.

Select options
Application Analytes:
Fructose
Glucose
Lactose
Maltose
Raffinose
Sorbitol
Sucrose
alpha-D-Lactose
beta-D-Lactose

Application Detection:
ELSD Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

HILIC Separation of Sugars on Obelisc N

March 3, 2010


Common sugars can be separated on an Obelisc N HILIC/cation-exchange column with LC/MS compatible mobile phase. Highly polar surface of Obelisc N column provides good retention for sorbitol, sucrose, lactose and raffinose. Other sugars can be separated using this column.

Condition

Column Obelisc N, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O
Buffer AmFm
Flow Rate 1.0 ml/min
Detection ELSD

 

Description

Class of Compounds
Hydrophilic, Ionizable, Sugars
Analyzing Compounds Sorbitol, Sucrose, Lactose,  Raffinose

Application Column

Obelisc N

SIELC has developed the Obelisc™ columns, which are mixed-mode and utilize Liquid Separation Cell technology (LiSC™). These cost-effective columns are the first of their kind to be commercially available and can replace multiple HPLC columns, including reversed-phase (RP), AQ-type reversed-phase, polar-embedded group RP columns, normal-phase, cation-exchange, anion-exchange, ion-exclusion, and HILIC (Hydrophilic Interaction Liquid Chromatography) columns. By controlling just three orthogonal method parameters - buffer concentration, buffer pH, and organic modifier concentration - users can adjust the column properties with pinpoint precision to separate complex mixtures.

Select options
Application Analytes:
Raffinose
Sorbitol
Sucrose
alpha-D-Lactose
beta-D-Lactose

Application Detection:
ELSD Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.