97404 Results for: "4-Amino-5-bromopyrimidine&pageNo=9"

Supplier: VWR Chemicals

Tetrabutylammonium hydroxide 0.1 mol/l (0.1 N) in 2-propanol 90% (v/v)/methanol 10% (v/v), AVS TITRINORM volumetric solution

Supplier: Whatman products (Cytiva)

A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels.

Supplier: Corning

PP, with or without filter, sterile or non sterile.

Supplier: VWR Chemicals

Sodium fluoride ≥98%, purified

Supplier: GLASWARENFABRIK KARL HECHT

Glas, clear.

Supplier: VITLAB

PP, translucent.

Supplier: Nitritex

Providing high particle and bacterial filtration efficiency, the latex-free and low-linting BioClean MTA™ ensures protection, combined with comfort and exceptional breathability.

Supplier: VWR Chemicals

Iron ≥98%, powder, Technical Grade

Supplier: VWR Chemicals

Trisodium phosphate dodecahydrate ≥98%, TECHNICAL

Supplier: VWR Chemicals

Potassium permanganate ≥99%, GPR RECTAPUR®

Supplier: Merck

Quick tests, visual colour comparison.

Supplier: VWR Chemicals

Sodium hypophosphite monohydrate ≥98%, GPR RECTAPUR®

Supplier: Merck

In general, ion exchangers consist of a cross-linked polymer matrix with a uniform distribution of fixed ionic groups sited throughout the resin structure. These must be balanced by a similar number of ions of the opposite charge, (counter ions) to maintain electrical neutrality. Cation exchangers therefore, exchange and enrich only cations, anion exchangers only anions. In contrast adsorber resins have a non ionic, but depending on the structure, a somewhat polar character, and don't adsorb stoichiometrically both: anions, cations, as well as uncharged compounds.

Supplier: GILSON

Designed to fit the Gilson MICROMAN® positive displacement pipette, Capillary Piston Tips are ideal for difficult-to-pipette samples including; viscous, volatile, dense, hot or cold, or hazardous liquids. The tips work like a syringe providing protection against pipette, sample, and user contamination, and produce accurate, reproducible, and precise results. Made of pure polypropylene, their slim fit allows you to use even the narrowest and deepest test tubes.

Supplier: VWR Collection

With a polyethylene top layer and inert white polypropylene and acrylic adhesive sublayer, this easy piercing sealing film allows direct sample recovery with single- or multi-channel pipettes and robotic probes.

Supplier: VWR Chemicals

Iron(II) sulphate heptahydrate ≥96%, TECHNICAL

Supplier: MORGAN ADVANCED MATERIALS HALD

Porcelain dishes, glazed inside and out, except base.

Supplier: Cytiva (Formerly Pall Lab)

Superior grade glass fibre filters for a variety of air sampling methods. Used in a variety of sample clean-up, prefiltration and analytical testing applications.

Supplier: Bohlender

PTFE, white. For connecting tubes or tubing to vessels with ground joint. For inserting and fixing probes, thermometers, dip tubes or cables.

Supplier: Brand

PC, round bottom and rimless, graduated.

Supplier: INTERSCIENCE

BagPipet® is an autoclavable pipette with three selectable volumes (0,1 ml / 0,9 ml / 1 ml). It is used with BagTips®, a single-use sterile and rigid straw.

Supplier: DWK Life Sciences

DURAN®, borosilicate glass 3.3, clear.

Supplier: VWR Chemicals

Ammonium chloride ≥98%, TECHNICAL

Supplier: VWR Chemicals

Toluene ≥98%, TECHNICAL

Supplier: Lenz Laborglas GmbH & CO.KG

DURAN®, borosilicate glass, with angled side neck, clear.

Supplier: VWR Chemicals

4-Aminophenol ≥99%, purified

Supplier: VWR Chemicals

Methanesulphonic acid ≥98%, TECHNICAL

Supplier: Lenz Laborglas GmbH & CO.KG

DURAN®, borosilicate glass, clear.

Supplier: VWR Chemicals

Dichloromethane, dehydrated (max. 0.01% H₂O) ≥99% stabilised, GPR RECTAPUR® for synthesis

Supplier: Merck

4,7,13,16,21-Pentaoxa-1,10-diazabicyclo[8.8.5]tricosane (Kryptofix® 221) ≥98% for synthesis, Sigma-Aldrich®