5g

Santonin

Santonin

Stromal-Cell Derived Factor-1 alpha/ CXCL12 (SDF-1α) and SDF-1β, members of the chemokine α subfamily that lack the ELR domain, were initially identified using the signal sequence trap cloning strategy from a mouse bone-marrow stromal cell line. These proteins were subsequently also cloned from a human stromal cell line as cytokines that supported the proliferation of a stromal cell-dependent pre-B-cell line. SDF-1α and SDF-1β cDNAs encode precursor proteins of 89 and 93 amino acid residues, respectively. Both SDF-1α and SDF-1β are encoded by a single gene and arise by alternative splicing. The two proteins are identical except for the four amino acid residues that are present in the carboxy-terminus of SDF-1β and absent from SDF-1α. SDF-1/PBSF is highly conserved between species, with only one amino acid substitution between the mature human and mouse proteins. SDF-1/PBSF acts via the chemokine receptor CXCR4 and has been shown to be a chemoattractant for T-lymphocytes, monocytes, pro- and pre- B cells, but not neutrophils. Mice lacking SDF-1 or CXCR4 have been found to have impaired B-lymphopoiesis, myelopoiesis, vascular development, cardiogenesis and abnormal neuronal cell migration and patterning in the central nervous system.

Molecular Formula : C6 H12 O2

Molecular Formula : C4H10S

Secnidazole

Serotonin Hydrochloride

Shikimic Acid

Silica Gel, Reversed Phase, Octadecyl (C18), 40-63 Micron, Ultrapure

Silver (II) Oxide

Silver Chloride, Granular, Reagent

Silver Diethyldithiocarbamate, Reagent, ACS

Silver Lactate

Silver Metal, Wool

Silver Sulfadiazine

Silver Tetrafluoroborate

Silver Trifluoromethanesulfonate

Molecular Formula : C8 H20 N O6 P

Sodium 1-Decanesulfonate

Sodium 1-Heptanesulfonate, [Reagent for Ion-Pair Chromatography]

Sodium 1-Hexanesulfonate, [Reagent for Ion-Pair Chromatography]

Sodium 1-Octanesulfonate, [Reagent for Ion-Pair Chromatography]

Sodium 1-Pentanesulfonate, [Reagent for Ion-Pair Chromatography]

Sodium 3-(Trimethylsilyl)-1-propanesulfonate, [1H NMR Standard for D2O Solvent]

Sodium 3-[Ethyl(m-tolyl)amino]-2-hydroxy-1-propanesulfonate, Hydrate

Sodium Cholate, Reagent

Sodium Cyanoborohydride, [Reducing Agent]

Sodium Dodecylbenzenesulfonate, (soft type) (mixture)

Sodium Glycocholate

Sodium Hyaluronate, EP

Sodium Iodide, USP

Sodium Octyl Sulfate

Sodium Polyanetholesulfonate

Sodium Pyruvate, Reagent

Sodium Taurocholate, Natural

Sodium Tetrathionate, Dihydrate

Solvent Orange 2

Sorbic Acid, [for Biochemical Research]

Spectinomycin Dihydrochloride Pentahydrate

Spermine

Spermine, Dihydrate

Spironolactone, USP

Squaric Acid

Stachyose, Hydrate

Stearyl Stearate

Stevioside

Stigmasterol

Stigmasterol

Streptomycin Sulfate, [for Protein Research]