301 Results for: "VWR"

Supplier: VWR

Iron(II) sulphate heptahydrate ≥99% ACS

Supplier: VWR

Chloroform : iso-Amyl alcohol (24:1 v:v)

Supplier: VWR

Sodium hydroxide, pellets, Proteomics Grade

Supplier: VWR

Dithiothreitol (DTT, Cleland's reagent) for biochemistry

Supplier: VWR

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

2-Mercaptoethanol ≥99% for biotechnology

Supplier: VWR

Orthophosphoric acid ≥85% ACS

Supplier: VWR

Phenol : chloroform : iso-amyl alcohol (25:24:1) (v/v/v) ≥99.0%, Biotechnology Grade 1 Phase, VWR®

Supplier: VWR

Ribonuclease A is an endoribonuclease that efficiently hydrolyzes RNA contaminants in DNA preparations from tissue or bacterial cell cultures. RNase A is used for a variety of molecular biology applications, most commonly for the hydrolysis of RNA that contaminates DNA preparations. This enzyme is used during plasmid purification without nicking or degrading plasmid.

Supplier: VWR

Sodium gluconate 98-102%, crystals, high purity

Supplier: VWR

Denatured with 5% methanol

Supplier: VWR

Potassium iodide ACS

Supplier: VWR

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

One of the best general-purpose buffers for biological research. Excellent for tissue culture, oxidative phosphorylation, protein synthesis with cell-free bacterial systems, photophosphorylation, and CO₂ fixation.

Supplier: VWR

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

Supplier: VWR

AMRESCO’s molecular biology grade glycogen is an inert carrier that increases the recovery of nucleic acids after alcohol precipitation. Insoluble in ethanol or isoproanol, glycogen traps the nucleic acids during precipitation and forms a visible pellet upon centrifugation. As an inert co-precipitant, glycogen efficiently recovers from dilute solutions DNA or RNA molecules ranging in size from small oligonucleotides to megabase molecules

Supplier: VWR

High purity protein digests used for media supplements.

Supplier: VWR

TBE is optimized for DNA electrophoresis techniques using both acrylamide and agarose

Supplier: VWR

1X Solution Composition:135 mM NaCl, 2.7 mM KCl,11 mM Phosphate Buffer.Does not contain magnesium or calcium.

Supplier: VWR

Dimethyl sulphoxide ≥99.9%, Ultra Pure Grade

Supplier: VWR

3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), Ultrapure

Supplier: VWR

Preparation of PBS using 10 L and 50 L Format:
Dissolve 9.88 g of PBS powder in 1 L of water to prepare a 1X PBS solution containing 137 mM sodium chloride, 2.7 mM potassium chloride and 9.8 mM phosphate buffer.
The 10 L and 50 L pack sizes contain sufficient powder to prepare 10 L and 50 L of 1X PBS, respectively.

Supplier: VWR

Formamide

Supplier: VWR

Commonly used to denature nucleic acids for electrophoresis and to study the secondary and tertiary structure of proteins. Effective for maintaining DNA in a highly denatured state during sequencing protocols, urea is also useful for accelerating the acti

Supplier: VWR

Zwitterionic, both positively and negatively charged. Utilized for applications ranging from solubilizing membrane proteins in non-denaturing conditions to creating denaturing conditions during gel electrophoresis.

Supplier: VWR

Suited for purification of nucleic acids or polypeptides from cell sources and inhibition of both RNase and protease activity.

Supplier: VWR

Optimized for RNA Agarose Electrophoresis

Supplier: VWR

Rapid Transfer Buffer is a simple, single component system for quick and efficient transfer of proteins from SDS-PAGE gels to membranes for Western blotting applications