6'-Sialyllactose (sodium), a major milk oligosaccharide, reduces the internalization of Pseudomonas aeruginosa in human lung cells.

Physicochemical Properties

Molecular Formula	C23H38NNAO19
Molecular Weight	655.532900333405
Exact Mass	655.193
CAS #	157574-76-0
PubChem CID	132285181
Appearance	Typically exists as solid at room temperature
Hydrogen Bond Donor Count	12
Hydrogen Bond Acceptor Count	19
Rotatable Bond Count	15
Heavy Atom Count	44
Complexity	934
Defined Atom Stereocenter Count	15
SMILES	[Na+].O1C(C(=O)[O-])(CC(C(C1[C@H]([C@H](CO)O)O)NC(C)=O)O)OCC1C(C(C(C(OC2C(CO)OC(C(C2O)O)O)O1)O)O)O
InChi Key	LJNVKOGOHXWREM-MZZLGFSDSA-M
InChi Code	InChI=1S/C23H39NO19.Na/c1-7(28)24-13-8(29)2-23(22(38)39,43-20(13)15(34)10(31)4-26)40-6-12-16(35)17(36)18(37)21(41-12)42-19(11(32)5-27)14(33)9(30)3-25;/h3,8-21,26-27,29-37H,2,4-6H2,1H3,(H,24,28)(H,38,39);/q;+1/p-1/t8-,9-,10+,11+,12+,13+,14+,15+,16-,17-,18+,19+,20+,21-,23+;/m0./s1
Chemical Name	sodium;(2R,4S,5R,6R)-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]-2-[[(2R,3R,4S,5R,6S)-3,4,5-trihydroxy-6-[(2R,3R,4R,5R)-1,2,4,5-tetrahydroxy-6-oxohexan-3-yl]oxyoxan-2-yl]methoxy]oxane-2-carboxylate
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

Solubility Data

Solubility (In Vitro)	H2O : ~125 mg/mL (~190.69 mM)
Solubility (In Vivo)	Solubility in Formulation 1: 12.5 mg/mL (19.07 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with sonication.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	1.5255 mL	7.6274 mL	15.2548 mL
	5 mM	0.3051 mL	1.5255 mL	3.0510 mL
	10 mM	0.1525 mL	0.7627 mL	1.5255 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.