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Supplier: SIGMA ALDRICH MICROSCOPY
Description: 3-(2-Pyridyl)-5,6-di(2-furyl)-1,2,4-triazine-5′,5′′-disulfonic acid disodium salt, also known as Ferene, is commonly used to measure the concentration of iron ions in aqueous solutions. The reagent is sensitive to ferrous iron ions (Fe2+) and forms a purple-colored complex with these ions in the presence of a reducing agent. The intensity of the purple color formed is proportional to the concentration of iron ions present in a solution and is quantified spectrophotometrically.

Supplier: Merck
Description: Titriplex® III solution c (Na₂-EDTA , 2 H₂O) = 0,1 mol/l, Titripur® Reag. Ph. Eur. for metal titration, Supelco®
Catalog Number: (86187.290)
Supplier: VWR Chemicals
Description: 1,2-Diaminocyclohexanetetraacetic acid disodium salt 0.1 mol/l (0.1 M), AVS TITRINORM
UOM: 1 * 1 L

Catalog Number: (1314.0025)
Supplier: Avantor
Description: Fluorescein disodium salt C.I. 45350, J.T.Baker®
UOM: 1 * 25 g


Catalog Number: (1.09992.0001)
Supplier: Merck
Description: Concentration after dilution to 1 liter: c(C₁₀H₁₄N₂Na₂O₈ ∙ 2 H₂O) = 0.1 mol/l
UOM: 1 * 1 Ampoul


Catalog Number: (VWRS28662.5000)
Supplier: VWR Collection
Description: 1ml = 5.6° dH/100 H₂O
UOM: 1 * 5 L


Supplier: VWR Chemicals
Description: EDTA disodium salt dihydrate 99.0-101.0%, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. analytical reagent
Catalog Number: (1.01922.0100)
Supplier: Merck
Description: 1,2-Dihydroxybenzene-3,5-disulphonic acid disodium salt monohydrate, Millipore®
UOM: 1 * 100 g


Supplier: VWR Chemicals
Description: EDTA disodium salt dihydrate Ph. Eur., USP, BP, JP, ACS
Catalog Number: (0681-100G)
Supplier: VWR Chemicals
Description: Yellow fluorine dye soluble in water as a sodium salt. Biological applications include use as a fluorescent labelling reagent for proteins.
UOM: 1 * 100 g

Supplier: Avantor
Description: EDTA disodium salt dihydrate, BAKER, Laboratory Reagent, J.T.Baker®
Catalog Number: (30029.290)
Supplier: VWR Chemicals
Description: 1 ml = 1°dH/100 ml H₂O
UOM: 1 * 1 L

Supplier: Merck
Description: Disodium fumarate for synthesis, Sigma-Aldrich®

Supplier: Avantor
Description: Avantor excipients are used during the formulation process in a wide range of applications. Avantor provides high-purity and performance excipients that serve as fillers, binders, disintegrants, lubicants, flavors, emulsifiers and preservatives.
Catalog Number: (84864.600)
Supplier: VWR Chemicals
Description: Dose for preparation of 1 litre of solution of concentration 0.1 mol/l
UOM: 1 * 170 mL

Catalog Number: (32068.603)
Supplier: VWR Chemicals
Description: EDTA disodium salt concentrate for dilution to 0.01 mol in aqueous solution, ConvoL NORMADOSE® volumetric solution
UOM: 1 * 60 mL

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on +353 1 88 22222.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at eurega_services@eu.vwr.com
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The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service on +353 1 88 22222.
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