sec-Butyl methyl ether 99%

sec-Butylamine 99%

sec-Butyllithium solution 1.4 M in cyclohexane

sec-Butylmagnesium chloride solution 2.0 M in diethyl ether

Secnidazole ≥98% (HPLC)

Secoisolariciresinol diglucoside ≥97% (HPLC)

Secoisolariciresinol ≥95.0% (HPLC)

Secologanin analytical standard

Secoxyloganin phyproof® Reference Substance

Secoxyloganin United States Pharmacopeia (USP) Reference Standard

Secretin human ≥97% (HPLC), powder

SecurTainer™ III specimen containers size 120 mL

SecurTainer™ III specimen containers size 20 mL

SecurTainer™ III specimen containers size 90 mL

Selamectin European Pharmacopoeia (EP) Reference Standard

Selamectin VETRANAL®, analytical standard

Selamectin ≥98% (HPLC)

Select agar

Select Yeast Extract powder, BioReagent, suitable for cell culture, suitable for insect cell culture

Selegiline Hydrochloride pharmaceutical secondary standard, certified reference material

Selegiline hydrochloride United States Pharmacopeia (USP) Reference Standard

Selenic acid solution 40 wt. % in H₂O, 99.95% trace metals basis

Selenite Cystine Broth GranuCult® prime, according to ISO 19250, FDA-BAM, AOAC®, APHA, granular, selective for Salmonella spp., pack of 500 g

Selenium black 99+ for analysis EMSURE®

Selenium dioxide (sublimed) for synthesis

Selenium dioxide 99.999% trace metals basis

Selenium dioxide reagent grade, powder, 98%

Selenium dioxide ReagentPlus®, powder, 99.8% trace metals basis

Selenium dioxide ≥99.9% trace metals basis

Selenium nanoparticles 80 nm particle size, 0.15 wt. % in water, dispersion

Selenium pellets, <5 mm particle size, ≥99.999% trace metals basis

Selenium pellets, <5 mm, ≥99.99% trace metals basis

Selenium powder, −100 mesh, 99.99% trace metals basis

Selenium powder, −100 mesh, ≥99.5% trace metals basis

Selenium Standard for AAS TraceCERT®, 1 g/L Se in nitric acid (nominal concentration), Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Selenium Standard for ICP TraceCERT®, 1 g/L Se in nitric acid (nominal concentration)

Selenium sulfide

Selenium tetrachloride

Seleno-ʟ-cystine 95%

Seleno-ᴅʟ-methionine ≥99% (TLC)

Selenocystamine dihydrochloride powder

Selenourea 98%

Selenous acid 98%

Selenous acid 99.999% trace metals basis

Selexipag ≥98% (HPLC)