IPTG (isopropyl-β-D-thiogalactopyranoside) ≥99.0%, Ultra Pure Grade
Supplier: VWR Chemicals
IPTG (isopropyl-β-D-thiogalactopyranoside) ≥99.0%, Ultra Pure Grade
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Methyl violet 2B for microscopy, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Methyl violet for microscopy (Bact., Bot., Hist.), indicator (pH 0.1 - 2.0), mixture of polymethylated pararosaniline hydrochlorides.
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Haematoxylin, Supelco®
Supplier: SIGMA ALDRICH MICROSCOPY
Hematoxylin has been used for staining gastric cancer tissues, myocardial tissue, heart sections and ovarian nuclei.
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Sudan II 90% (dye content), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Sudan II has been used to determine its presence in commercial spices such as hot chilli food samples (LC–ESI–MS/MS).
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Quinaldine red 95% (dye content), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Quinaldine red has been used as a fluorescent probe for α1-acid glycoprotein (AAG). It is also used a diagnostic assay manufacturing, hematology, histology.
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4-(Dimethylamino)benzaldehyde, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Suitable for histochemical demonstration of nitro blue tetrazolium reduction in neutrophils.
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4-(2-Pyridylazo)resorcinol monosodim salt monohydrate, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
4-(2-Pyridylazo)resorcinol monosodium salt is a chromophoric indicator and chromogenic chelator employed for the spectrophotometric determination of several metal ions.
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Thymol 99.01-101.0% BP, NF, Analytical reagent (AR), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Thymol meets analytical specification of Ph. Eur., BP, NF, 99 to 101%.
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Toluidine blue O, powder, Certifiable Grade
Supplier: VWR Chemicals
A blue counterstain often used for metachromatic staining of mast cells, cartilage, and acid mucins. Black to dark green fine powder
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Propyl-3,4,5-trihydroxybenzoate ≥98% (by HPLC) for histology and pathology, for diagnostic, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Propyl-3,4,5-trihydroxybenzoate ≥98% (by HPLC) for histology and pathology, for diagnostic, Sigma-Aldrich®
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Leishman's eosin-methylene blue modified solution stain for histology, Sigma-Aldrich®
Supplier: Merck
For staining of blood and bone marrow smears and clinical-cytological specimens
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Haematoxylin solution Gill I, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Gill no.1 formulation is used as a progressive cytology stain.
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Fast blue BB salt for microscopy, for histology, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Fast blue BB salt for microscopy, for histology, Sigma-Aldrich®
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Giemsa's stain modified solution, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Modified Giemsa stain may be used for the identification of each human chromosome by differentials staining.
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Sudan red 7B (fat red bluish, solvent red 19, fat red 7B), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Sudan red 7B (fat red bluish, solvent red 19, fat red 7B), Sigma-Aldrich®
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Poly-L-lysine hydrobromide
Supplier: SIGMA ALDRICH MICROSCOPY
Poly-L-lysine is a positively charged amino acid polymer with approximately one HBr per lysine residue. The hydrobromide allows the poly-L-lysine to be in a crystalline form soluble in water. A small amount of product may be found in the beta structure because the HBr interferes with hydrogen bonding between amino and either the carboxyl groups or N or O containing moieties.
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Azo rubine (50% dye content) C.I 14720 , Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Chromotrope FB, also known as acid red 14 (AR14), is a bright orange-red powder. It belongs to the class of monoazides.
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May Grunwald's eosin-methylene blue modified solution stain for hematology, for cytology, Sigma-Aldrich®
Supplier: Merck
Used to stain blood, bone marrow smears, and clinical cytological specimens
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Neutral red, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Neutral red, Sigma-Aldrich®
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Rhodamine B ≥95% (by HPLC), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Rhodamine B is a xanthene dye, which functions as a water tracer fluorescent. It is used as a colorant in textiles and food stuffs. Rhodamine B is associated with eye, skin and respiratory tract irritation. It is used as a biomarker in oral rabies vaccine.
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Fluorescein diacetate cell viability stain, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Fluorescein diacetate (FDA) is a non-fluorescent molecule, which is hydrolysed to fluorescent fluorescein in live cells. Dead cells cannot accumulate or hydrolyse FDA. Fluorescein diacetate has been used for the differentiation of live cells from dead cells.
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Homovanillic acid fluorimetric reagent, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Homovanillic acid has been used as a standard in HPLC analysis. Metabolite of dihydroxyphenylacetic acid (DOPAC) by catechol O-methyltransferase; reagent for the fluorimetric determination of glucose oxidase and other oxidative enzymes.
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Erythrosin B ≥95% (dye content), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Erythrosin B, also called as eosin B, is a xanthene dye. It belongs to the family of fluorescein dyes. It plays a major role in inhibiting dopamine uptake and high affinity 3H-ouabain binding and ion transport in synaptosomes from rat caudate nucleus. Erythrosin B has been used as a dye in fluorescence lifetime imaging.
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Safranine O solution for Gram staining, Sigma-Aldrich®
Supplier: Merck
Counterstain for Gram staining
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Butyl acetate ≥99.5% (by GC), EMSURE® for analysis, Supelco®
Supplier: Merck
For full details of specification and hazards please see www.vwr.com or the VWR Chemicals catalogues
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Victoria blue R 80% (dye content), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Victoria Blue R is a basic dye. It belongs to the class of diphenylnaphthylmethane dyes. Victoria Blue R has been employed in manufacture of lake pigments. It has lot of industrial applications, but it is rarely used as a biological stain.
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Biebrich scarlet (contains ~60% dye content) , Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Ponceau BS has been used in Masson′s trichrome stain for the staining of collagen. It has also been used for eosinophil staining.
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Methylene blue ≥82% (dye content), certified by the Biological Stain Commission, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Methylene blue ≥82% (dye content), certified by the Biological Stain Commission, Sigma-Aldrich®
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Rhodamine 6G ~95% (dye content), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Rhodamine 6G has been used as a leukocyte marker to study the interaction between leukocytes and the vascular endothelium. It has also been used to label platelets.