Chromoionophore I (ETH 5294, 3-octadecanoylimino-7-diethylamino-l,2-benzophenoxazine) is a H+-selective neutral chromoionophore, which is lipophilic in nature and is a highly basic dye molecule.

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Analytical sieve shakers, AS 200/AS 300

Supplier: Retsch GmbH

Retsch analytical sieve shakers are used in research and development, quality control of raw materials, interim and finished products, as well as in production monitoring.

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3-Aminobenzamide ≥98.0% (by titrimetric analysis)

Supplier: TCI

3-Aminobenzamide ≥98.0% (by titrimetric analysis)

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Lithium fluoride ≥99.98% (metals basis)

Supplier: Thermo Fisher Scientific

Lithium fluoride ≥99.98% (metals basis)

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1,5-Dibromopentane ≥98%

Supplier: Thermo Fisher Scientific

1,5-Dibromopentane ≥98%

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1,3-Difluoro-2-nitrobenzene ≥98%

Supplier: Thermo Fisher Scientific

1,3-Difluoro-2-nitrobenzene ≥98%

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4-Chlorothiobenzamide ≥97.0% (by HPLC, total nitrogen)

Supplier: TCI

4-Chlorothiobenzamide ≥97.0% (by HPLC, total nitrogen)

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3'-Chloroacetophenone ≥97.0% (by GC)

Supplier: TCI

3'-Chloroacetophenone ≥97.0% (by GC)

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Avantor® Hichrom, Retention Gap/Precolumn, DPTMDS Deactivated Fused Silica

Supplier: Avantor

DPTMDS deactivated fused silica retention gap / precolumn. General purpose deactivation for both apolar and polar solvents.

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VWR® Science Education School Weights

Supplier: VWR Collection

Brass weights that are ideal for schools introducing the concept of weights and forces.

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5-Methylhydantoin 95%

Supplier: Apollo Scientific

5-Methylhydantoin 95%

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Polyvinyl alcohol, M.W. ∼ 30000 for synthesis, fully hydrolysed, Sigma-Aldrich®

Supplier: Merck

Polyvinyl alcohol, M.W. ∼ 30000 for synthesis, fully hydrolysed, Sigma-Aldrich®

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4-Hydroxy-3-methoxycinnamic acid (Ferulic acid) 99%

Supplier: Thermo Fisher Scientific

4-Hydroxy-3-methoxycinnamic acid (Ferulic acid) 99%

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5-Bromo-2-iodopyrimidine ≥98.0% (by GC)

Supplier: TCI

This product is unavailable in the U.S.

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tert-Butoxytrimethylsilane ≥97.0% (by GC)

Supplier: TCI

tert-Butoxytrimethylsilane ≥97.0% (by GC)

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2'-Hydroxy-4',6'-dimethoxyacetophenone ≥98%

Supplier: Thermo Fisher Scientific

2'-Hydroxy-4',6'-dimethoxyacetophenone ≥98%

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3-(Trifluoromethyl)styrene 97+% stabilised

Supplier: Thermo Fisher Scientific

Appearance: Clear colorless Liquid

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Interleukin 21 (IL-21) is a pleiotropic cytokine that is composed of four α-helical bundles and primarily produced by natural killer T (NKT) cells, T follicular helper (Tfh) cells, and Th17 cells (Spolski and Leonard 2008). IL-21 signals via receptor heterodimerization of IL-21 receptor and IL-2 receptor subunit gamma (IL-2RG or CD132), both of which have a common gamma-chain subunit and activate the JAK/STAT, MAPK, and PI3K pathways (Parrish-Novak et al.; Ozaki et al. 2000; Spolski and Leonard 2014). IL-21 has been shown to have a critical role in regulating immunoglobulin production and differentiation of the pro-inflammatory Th17 population of cells (Ozaki et al. 2002; Nurieva et al.). Additionally, IL-21 specifically sustains CD8+ T cell effector activity and provides a mechanism of CD4+ T cell help during chronic viral infection (Elsaesser et al.). IL-21 signaling was also found critical for the development of type 1 diabetes in non-obese diabetic (NOD) mice (Sutherland et al.) and control of T cell autoimmunity by regulatory B cells (Yoshizaki et al.).