Sigma-Aldrich
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G-H-I


Stains & Dyes



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(Indan-1,3-diylidene)dimalononitrile 97% 38172-19-9464619pricing
1-(2-Hydroxyethyl)-1,2,3,4-tetrahydro-2,2,4,7-tetramethylquinoline 97% 53817-44-0578355pricing
1-(4-Hydroxyphenyl)-2,4,6-triphenylpyridinium hydroxide inner salt hydrate 97% 123334-01-0334138pricing
1-Heptyl-4-(4-pyridyl)pyridinium bromide 95% 39127-10-1377783pricing
1-Hexyl-2-methylbenzoxazolium iodide 595160pricing
1-Iodo-3,5-dinitrobenzene 98% 6276-04-6452769pricing
2-(4-Hydroxyphenyl)-5-pyrimidinol 90% 142172-97-2472077pricing
2-(β-D-Galactosidoxy)naphthol AS-LC 94123-05-4G2000pricing
2-Hydroxy-1,4-naphthoquinone 97% 83-72-7H46805pricing
 2-Hydroxy-3-methyl-5-[(4-sulfophenyl)azo]benzoic acid sodium salt Dye content 65 % 195138pricing
3-Hydroxydiphenylamine 97% 101-18-8H25603pricing
4′-Hydroxy-4-biphenylcarboxylic acid 99% 58574-03-1371335pricing
4-(4-Isothiocyanatophenylazo)-N,N-dimethylaniline 97% 7612-98-8317802pricing
4-(Hydroxymethyl)benzoic acid 3006-96-0H5892pricing
5-Iodosalicylaldehyde 97% 1761-62-2524328pricing
6-Hexadecanoyl-2-(((2-(trimethylammonium)ethyl)methyl) amino)naphthalene chloride solid 87393-54-2H6535pricing
8-Hydroxyjulolidine 97% 41175-50-2249394pricing
Gallocyanine Dye content 90 % 1562-85-2124508pricing
Gallocyanine Standard Fluka, for microscopy 1562-85-2Analytical, Microscopy, Standard48610pricing
Gentian Violet meets USP testing specifications 548-62-9USP, USP/NFG2039pricing
Gentian violet Standard Fluka, for microscopy (Bact., Hist.) Analytical, Microscopy, Standard48770pricing
Giemsa stain Technical grade. Suitable for use as a blood stain. 51811-82-6G4507pricing
Giemsa stain certified by the Biological Stain Commission 51811-82-6Certified by the Biological Stain Commission121398pricing
Giemsa stain certified by the Biological Stain Commission 51811-82-6G5637pricing
Glutaraldehyde bis(2,4-dinitrophenylhydrazone) environmental standard, 99% 5085-07-4Analytical, Environmental, Standard431125pricing
Glycine Cresol Red sodium salt 77031-64-2G8282pricing
Guinea Green B Dye content 50 % 4680-78-8207721pricing
 Hayem’s solution BioChemika, for counting (of erythrocytes) BioChemika03892pricing
Hematein Standard Fluka, for microscopy (Hist.) 475-25-2Analytical, Microscopy, Standard51230pricing
Hematein from logwood, ~85% 475-25-2H1625pricing
Hematoxylin 517-28-2H9627pricing
Hematoxylin Standard Fluka, for microscopy (Hist.), indicator (pH 5.0-6.0) 517-28-2Microscopy51260pricing
Hematoxylin certified by the Biological Stain Commission 517-28-2Certified by the Biological Stain CommissionH3136pricing
Hexanal 2,4-dinitrophenylhydrazone environmental standard, 99% 1527-97-5Analytical, Environmental, Standard429643pricing
 Histocryl embedding resin H4396pricing
 Hydroxy naphthol blue disodium salt ACS reagent 165660-27-5ACS reagent219916pricing
IR-797 chloride Dye content 80 % 110992-55-7642339pricing
IR-813 perchlorate Dye content 80 % 201024-57-9642347pricing
 Immersion oil viscosity 1,250 cSt (lit.) I0890pricing
 Immersion oil viscosity 150 cSt (lit.) I0765pricing
 Immersion oil viscosity 21,000 cSt (lit.) I1015pricing
Indigo carmine Dye content ~85 % 860-22-0I8130pricing
Indigo carmine Standard Fluka, for microscopy (Bact., Hist.), indicator (pH 11.5-14.0) 860-22-0Microscopy57000pricing
Indigo carmine certified by the Biological Stain Commission, Dye content 85 % 860-22-0131164pricing
Indigo synthetic, Dye content 95 % 482-89-3229296pricing
Indo 1 pentapotassium salt ~90% (TLC) 132319-56-3I3136pricing
Indocyanine green Dye content 80 % 3599-32-4228869pricing
Indophenol 500-85-6I5763pricing
Indophenol Blue Dye content 60 % 132-31-0330574pricing
Indoxyl β-D-galactopyranoside 126787-65-3I7513pricing
 Indulin B practical grade 8004-99-7PracticalI2131pricing
Iodonitrotetrazolium chloride Used in colorimetric assays. 146-68-9I8377pricing
Isopentyl nitrite 96% 110-46-3150495pricing
N-(Iodoacetaminoethyl)-1-naphthylamine-5-sulfonic acid ≥80% (HPLC), crystalline 36930-63-9I8879pricing