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Supplier: SIGMA ALDRICH MICROSCOPY
Description: Naphthol blue black (NBB) is an textile diazo dye, with high photo- and thermal-stability. Photoelectrochemical degradation of this dye yields colorless quinone as end product. Pure grade of NBB is generally used for dyeing foodstuffs, drugs and cosmetics. It is also used as a protein stain in chromatography and electrophoresis and as a biological stain. Commercial grade of NBB is a widely used textile dye. It is used in dyeing wool, nylon, silk and in textile printing. In addition, it is also employed for colouring of soaps, anodised aluminum and casein, wood stains and writing ink preparation.

Catalog Number: (J1625-25G)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Jenner's stain, suitable for blood stain (Eosin-Methylene Blue)
UOM: 1 * 25 g


Supplier: Thermo Fisher Scientific
Description: Appearance: Grey to brown Powder and/or chunks
Supplier: Thermo Fisher Scientific
Description: Methylene blue hydrate, pure
Supplier: Thermo Fisher Scientific
Description: Nitro blue tetrazolium chloride monohydrate (NBT) 90%
Catalog Number: (1.04724.0025)
Supplier: Merck
Description: Indigo carmine, Supelco®
UOM: 1 * 25 g

Catalog Number: (L09381.06)
Supplier: Thermo Fisher Scientific
Description: Methylthymol blue sodium salt
UOM: 1 * 5 g

Supplier: Apollo Scientific
Description: Indicator for metal titrations
Catalog Number: (WS16-500ML)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Popular hematology stain used for differentially staining the cellular elements of blood. For dip, rack, and batch staining techniques.
UOM: 1 * 500 mL


Catalog Number: (80717-100MG)
Supplier: Merck
Description: Brilliant blue FCF has been used as a test compound in validating the lowest observed adverse effect level (LOAEL) to inflict developmental toxicity upon exposure to common excipients.
UOM: 1 * 100 mg

Supplier: Thermo Fisher Scientific
Description: Methylene blue trihydrate 95%, pure
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Wright stain, a modified romanowsky stain, is intended for differential staining of the cellular elements of blood. It comprises polychrome methylene blue and eosin B. Upon staining blood films with wright stain, the white blood cell nucleus and cytoplasm display characteristic blue or pink hues.

Supplier: Thermo Fisher Scientific
Description: Nitro blue tetrazolium chloride (NBT) tech. 90%, Technical Grade
Supplier: Thermo Fisher Scientific
Description: Methylthymol blue sodium salt ACS indicator grade
Catalog Number: (SYNOGX-ULTRABRIGHT)
Supplier: Syngene (a division of the Synoptics group)
Description: Blue light transilluminators are often used as an alternative to UV transilluminators when users wish to use ‘safe dyes’ instead of ethidium bromide. A blue light transilluminator is a ‘safe’ light source, in that the user is not exposed to harmful UV radiation and samples are free from photonicking. UltraBright-LED transilluminator uses side mounted 470 nm LED arrays for illumination and can be used with gels up to 20×16 cm.
UOM: 1 * 1 items


Supplier: Avantor Fluid Handling
Description: Designed for optimal operation in your Ismatec pumps.

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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.
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
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organisation. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
Product(s) marked with this symbol are discontinued - sold till end of stock. 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 8822222.
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