3'-SLea 3'-Sialyl Lewis A 92448-22-1 D-Glucose, O-(N-acetyl-a-neuraminosyl)-(2>3)-O-b-D-galactopyranosyl-(1>3)-O-[6-deoxy-a-L-galactopyranosyl-(1>4)]-2-(acetylamino)-2-deoxy- (9CI) D-glucose, O-5-(acetylamino)-3,5-dideoxy-D-glycero-alpha-D-galacto-2-nonulopyranonosyl-(2->3)-O-beta-D-galactopyranosyl-(1->3)-O-[6-deoxy-alpha-L-galactopyranosyl-(1->4)]-2-(acetylamino)-2-deoxy- SLea Sialyl Lea tri Sialyl Lewis a Sialyl-Lewis a a-NeuNAc-(2>3)-b-D-Gal-(1>3)-(a-L-Fuc-[1>4])-D-GlcNAc CAS 92448-22-1

Purity 97%+In StockPharmaceutical Standards
CAS No.92448-22-1
Molecular FormulaC31H52N2O23
Molecular Weight820.74 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3'-SLea 3'-Sialyl Lewis A 92448-22-1 D-Glucose, O-(N-acetyl-a-neuraminosyl)-(2>3)-O-b-D-galactopyranosyl-(1>3)-O-[6-deoxy-a-L-galactopyranosyl-(1>4)]-2-(acetylamino)-2-deoxy- (9CI) D-glucose, O-5-(acetylamino)-3,5-dideoxy-D-glycero-alpha-D-galacto-2-nonulopyranonosyl-(2->3)-O-beta-D-galactopyranosyl-(1->3)-O-[6-deoxy-alpha-L-galactopyranosyl-(1->4)]-2-(acetylamino)-2-deoxy- SLea Sialyl Lea tri Sialyl Lewis a Sialyl-Lewis a a-NeuNAc-(2>3)-b-D-Gal-(1>3)-(a-L-Fuc-[1>4])-D-GlcNAc CAS 92448-22-1 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

3'-SLea 3'-Sialyl Lewis A 92448-22-1 D-Glucose, O-(N-acetyl-a-neuraminosyl)-(2>3)-O-b-D-galactopyranosyl-(1>3)-O-[6-deoxy-a-L-galactopyranosyl-(1>4)]-2-(acetylamino)-2-deoxy- (9CI) D-glucose, O-5-(acetylamino)-3,5-dideoxy-D-glycero-alpha-D-galacto-2-nonulopyranonosyl-(2->3)-O-beta-D-galactopyranosyl-(1->3)-O-[6-deoxy-alpha-L-galactopyranosyl-(1->4)]-2-(acetylamino)-2-deoxy- SLea Sialyl Lea tri Sialyl Lewis a Sialyl-Lewis a a-NeuNAc-(2>3)-b-D-Gal-(1>3)-(a-L-Fuc-[1>4])-D-GlcNAc (CAS 92448-22-1) is a high-purity analytical reference standard with the molecular formula C31H52N2O23 and a molecular weight of 820.74 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 3'-SLea 3'-Sialyl Lewis A 92448-22-1 D-Glucose, O-(N-acetyl-a-neuraminosyl)-(2>3)-O-b-D-galactopyranosyl-(1>3)-O-[6-deoxy-a-L-galactopyranosyl-(1>4)]-2-(acetylamino)-2-deoxy- (9CI) D-glucose, O-5-(acetylamino)-3,5-dideoxy-D-glycero-alpha-D-galacto-2-nonulopyranonosyl-(2->3)-O-beta-D-galactopyranosyl-(1->3)-O-[6-deoxy-alpha-L-galactopyranosyl-(1->4)]-2-(acetylamino)-2-deoxy- SLea Sialyl Lea tri Sialyl Lewis a Sialyl-Lewis a a-NeuNAc-(2>3)-b-D-Gal-(1>3)-(a-L-Fuc-[1>4])-D-GlcNAc is typically off-white to pale yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 820.74 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC31H52N2O23
Molecular Weight820.74 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Nitrogen Atoms2

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