"VWR"

Supplier: VWR

May be used for the precipitation or fractionation of proteins or for purification of antibodies. Useful for crystallographic analysis of nucleic acids and proteins.

Supplier: VWR

Non-animal origin. White powder

Supplier: VWR

Dextran sulfate sodium salt, M.W. ~ 500,000, Ultra Pure Grade

Supplier: VWR

Fine white powder.

Supplier: VWR

Reagent for stabilization of buffer formulations and electrophoresis of biological molecules.

Supplier: VWR

Common source of salts for media propagation of many organisms.

Supplier: VWR

An excellent reagent for maintaining SH groups in reduced state; quantitatively reduces disulfides. DTT is effective in sample buffers for reducing protein disulfide bonds prior to SDS-PAGE. DTT can also be used for reducing the disulfide bridge of the cross-linker N,N′-bis(acryloyl)cystamine to break apart the matrix of a polyacrylamide gel. DTT is less pungent and is less toxic than 2-mercaptoethanol. Typically, a seven fold lower concentration of DTT (100 mM) is needed than is used for 2-mercaptoethanol (5% v/v, 700 mM).

Supplier: VWR

Ideal for denaturing nucleic acids in hybridization and DNA sequencing procedures.

Supplier: VWR

Nitro blue tetrazolium chloride (NBT), Ultrapure

Supplier: VWR

DNase- and RNase-free.Common reagent in routine nucleic acid procedures and electrophoresis loading dyes.

Supplier: VWR

A small biomolecule, 244 Daltons, that has high binding affinity to avidin and streptavidin often used to label antibodies and enzymes. Several molecules of biotin can react with a single protein molecule to increase the sensitivity at the site of detection.

Supplier: VWR

Sodium pyruvate ≥99%, Reagent Grade

Supplier: VWR

Disodium hydrogen phosphate heptahydrate ACS

Supplier: VWR

β-Dihydronicotinamide adenine dinucleotide disodium salt (NADH-Na₂, reduced form) trihydrate, Reagent Grade

Supplier: VWR

di-Sodium tetraborate decahydrate ACS

Supplier: VWR

A valuable plasma stain used in contrast to hematoxylin. Also a counterstain to safranin.