Supplier: Merck

p-Toluenesulphonyl chloride for synthesis, Sigma-Aldrich®

Supplier: Merck

D-(+)-Malic acid for synthesis, Sigma-Aldrich®

Supplier: Merck

1,2-Ethanedithiol ≥99.0% (by GC) for synthesis, Sigma-Aldrich®

Supplier: Merck

Ethanethiol for synthesis, Sigma-Aldrich®

Supplier: Merck

Merck offers a broad variety of withdrawal systems that are tailor-made for barrels and drums. They are designed to ensure safe, easy and efficient solvent withdrawal-even of residual quantities-while meeting all relevant safety regulations.
The integrated solvent supply systems directly connect the solvent to the instrument or product line where it is needed. We provide systems for manual pressure build-up as well as inert gas pressurising, supplemented by a comprehensive selection of reducers, adapters and couplings that allow easy interconnection of all components. This way the user can precisely manage his solvent flow and thus optimizes the processes-and at the same time minimizes risks for the employees and the environment.

Supplier: Merck

2-(4-Chlorophenylthio)ethanol, Sigma-Aldrich®

Supplier: Merck

Dipropyleneglycol monomethyl ether (mixture of isomers) for synthesis, Sigma-Aldrich®

Supplier: Merck

Ammonium sulphate, EMSURE® ISO, ACS, Reag. Ph. Eur. for analysis, Supelco®

Supplier: Merck

Sulphuric acid 62% analytical reagent, for the determination of fats in cheese, Supelco®

Supplier: Merck

For on-line sample preparation of untreated bio-fluids. Allows the direct extraction and enrichment of hydrophobic, low molecular analytes from untreated samples such as haemolysed blood, plasma, serum, milk, salivary fluid, fermentation broth, supernatants of cell cultures and tissue as well as food homogenates.

Supplier: Merck

Methylamine 40% in aqueous solution for synthesis, Sigma-Aldrich®

Supplier: Merck

1-Octadecene for synthesis, Sigma-Aldrich®

Supplier: Merck

EMSURE® grade solvents are suitable for a broad spectrum of classical lab applications, and are frequently used in regulated and highly demanding lab applications. EMSURE® provides worldwide best and most extensive product specifications. We declare our EMSURE® range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards.

Supplier: Merck

EMSURE® grade solvents are suitable for a broad spectrum of classical lab applications, and are frequently used in regulated and highly demanding lab applications. EMSURE® provides worldwide best and most extensive product specifications. We declare our EMSURE® range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards.

Supplier: Merck

Thiosemicarbazide for synthesis, Sigma-Aldrich®

Supplier: Merck

α,α-Dichloropropiophenone

Supplier: Merck

3-Amino-1H-1,2,4-triazole, Sigma-Aldrich®

Supplier: Merck

Dimethyl acetal for synthesis, Sigma-Aldrich®

Supplier: Merck

4-(Dimethylamino)benzaldehyde Reag. Ph. Eur. analytical reagent, Supelco®

Supplier: Merck

2,6-Dichloroquinone-4-chloroimide, GR Reag. Ph. Eur., Supelco®

Supplier: Merck

Bromocresol purple ACS, Reag. Ph. Eur., Supelco®

Supplier: Merck

2-Ethylpyrazine for synthesis

Supplier: Merck

Aluminium tri-sec-butanolate for synthesis, Sigma-Aldrich®

Supplier: Merck

2-Aminoethyl dihydrogen phosphate for synthesis, Sigma-Aldrich®

Supplier: Merck

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.

Supplier: Merck

Sodium sulphate, EMSURE® ACS for analysis, Supelco®

Supplier: Merck

Löffler's methylene blue solution is generally used as bacteriological counter staining of, e.g. of gonococcae, lactic acid bacteria and for visualization of the pole corpuscles of pasteurella.

Supplier: Merck

Alizarin complexone dihydrate for fluoride determination, Supelco®

Supplier: Merck

Soluble in water and mineral acids; insoluble in organic solvents.

Supplier: Merck

Bis(2-chloroethyl)ammonium chloride for synthesis, Sigma-Aldrich®