"VWR"

Supplier: VWR

Mercapto-2 éthanol ≥99% for biotechnology

Supplier: VWR

Fer (II) sulfate heptahydraté ≥99% ACS

Supplier: VWR

High purity protein digests used for media supplements.

Supplier: VWR

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

Supplier: VWR

Cell culture buffer, TRIS Buffer Solution 0.1M, pH 7.4

Supplier: VWR

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

Supplier: VWR

D(+)-Glucose monohydraté for biochemistry

Supplier: VWR

Alizarin red S (sodium salt) for biochemistry

Supplier: VWR

Sodium sulfate, anhydrous ACS

Supplier: VWR

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

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

Potassium iodure ACS

Supplier: VWR

Formamide, Ultrapure

Supplier: VWR

Diméthylsulfoxyde ≥99.9%, Ultra Pure Grade

Supplier: VWR

VWR’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

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).