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Supplier: SIGMA ALDRICH MICROSCOPY
Description: Ethyl viologen dibromide (1,1-diethyl- 4,4-bipyridinium dibromide) has been used as an internal standard in analysis of paraquat and diquat in the serum using high-performance liquid chromatography.

Supplier: SIGMA ALDRICH MICROSCOPY
Description: Indophenol is used in hair dyes, redox materials, lubricants, liquid crystal displays, biosensor and fuel cells. It is toxic to fishes and is implicated in environmental pollution. Indophenol method is common for the determination of ammonia. The reaction gives a blue product, which is measured spectrophotometrically.

Supplier: SIGMA ALDRICH MICROSCOPY
Description: A negatively charged polymethine dye that forms noncovalent fluorescent complexes with proteins.

Catalog Number: (550248-5G)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: 4,5-Dibromobenzene-1,2-diol 90%, Technical Grade, Sigma-Aldrich®
UOM: 1 * 5 g


Supplier: SIGMA ALDRICH MICROSCOPY
Description: New methylene blue N has been used as a photosensitizer for the photodynamic inactivation of Candida albicans.

Supplier: SIGMA ALDRICH MICROSCOPY
Description: meso-Tetraphenylporphine ≥99%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY
Description: Primuline, also known as direct yellow 59 or primuline yellow, is considered to be a more sensitive and non-destructive dye for lipids.

Catalog Number: (328960-1G)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Rose Bengal lactone 95%, Sigma-Aldrich®
UOM: 1 * 1 g


Supplier: SIGMA ALDRICH MICROSCOPY
Description: 4-(2-Pyridylazo)resorcinol monosodium salt is a chromophoric indicator and chromogenic chelator employed for the spectrophotometric determination of several metal ions.

Supplier: SIGMA ALDRICH MICROSCOPY
Description: Thymoquinone has been used as an inhibitor of <i>Escherichia coli</i> ATP synthase and cell growth. It is also used as a drug against lower limb ischemia-reperfusion injury of sciatic nerve and femoral muscle. Thymoquinone is employed in preclinical studies as a neuroprotective and anticonvulsant agent.

Catalog Number: (F5803-50MG)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: A preweighed vial containing 50 mg o-Dianisidine. o-Dianisidine (3,3′-dimethoxybenzidine) is a peroxidase substrate suitable for use in ELISA procedures. This substrate produces a soluble end product that is yellow-orange in color and can be read spectrophotometrically at 405 nm. The reaction may be stopped with 5 M HCl.
UOM: 1 * 50 mg


Catalog Number: (B9431-5MG)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Useful for quantitating biotin binding sites. This reagent binds to avidin more quickly than conventional fluorescein biotin.
UOM: 1 * 5 mg


Catalog Number: (HT1102128)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: General purpose cytoplasmic counterstain. Used with hematoxylin and eosin staining.
UOM: 1 * 4 L


Supplier: SIGMA ALDRICH MICROSCOPY
Description: Certified for use in the Stoval and Black method for demonstrating Negri bodies in the central nervous system of rabid animals.

Catalog Number: (546062-100MG-A)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Rhodamine 19 perchlorate ~95% (dye content), Sigma-Aldrich®
UOM: 1 * 100 mg


Catalog Number: (277339-1L)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Methyl Purple,in H2O (Methyl Purple indicator solution)
UOM: 1 * 1 L


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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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