Sigma-Aldrich™ Sigma-Aldrich™ Eosin Y Solution, aqueous

General purpose cytoplasmic counterstain

Sigma-Aldrich™ Sigma-Aldrich™ Papanicolaou Stains

For routine diagnostic cytology to aid in the identification and classification of exfoliative cells

Sigma-Aldrich™ Eosin Y Solution, Alcoholic with Phloxine

General-purpose cytoplasmic counterstain

Sigma-Aldrich™ Jenner's Stain

Certified by Biological Stain Commission

Sigma Diagnostics™ Light Green SF Yellowish

For use as cytological counterstain and as substitute for aniline blue in Gomori's one-step trichrome procedure

Sigma-Aldrich™ Sigma-Aldrich™ Giemsa stain, modified

Used in staining blood or bone marrow films

Sigma-Aldrich™ Sudan Black B Staining System

For histochemical demonstration of neutrophil granules in blood or bone marrow films

Sigma-Aldrich™ Trichrome Stain (Masson) Kit

Intended for use in the study of connective tissue, muscle and collagen fibers

Sigma-Aldrich™ Methyl Blue

Used as a substitute for fast green FCF in Gomori's one-step trichrome procedure

Sigma-Aldrich™ Biebrich Scarlet-Acid Fuchsin Solution

Kit component in Masson Trichrome procedure

Sigma-Aldrich™ Sigma-Aldrich™ May-Grunwald Stain

For differential staining of cellular elements of blood

Sigma-Aldrich™ Periodic Acid Schiff Kit (PAS) Kit

For demonstration of lymphocytes and mucopolysaccharides in tissue sections

Sigma-Aldrich™ Scott′s Tap Water Substitute Concentrate

Use as a “blueing reagent” in hematoxylin and eosin staining procedures

Sigma-Aldrich™ Giemsa stain

Certified by Biological Stain Commission

Sigma-Aldrich™ Citrate Solution

For in vitro diagnostic use

Sigma-Aldrich™ Hematoxylin

Certified for use in Weigert′s iron hematoxylin, Mayer′s hemalum, Harris hemalum and in Heidenhain′s technique

Sigma-Aldrich™ TRAP Solutions

For use in Sigma Acid Phosphatase (TRAP) Procedure Kit 386 and 387

Sigma-Aldrich™ Elastic Stain Kit

For histologic staining of elastin in tissue

Sigma-Aldrich™ Phosphotungstic Acid Solution

Intended for use in the Sigma Masson Trichrome Procedure, HT15

Sigma-Aldrich™ Nitro Blue Tetrazolium (NBT) Reduction Kit

Detection of defects in neutrophil functions like chronic granulomatous disease

Sigma-Aldrich™ Safranin O

To stain chromosomes, Gram negative bacteria and Safranine-fast green FCF stain for plant cells

Sigma-Aldrich™ Weigert’s iron hematoxylin solution

Resists decolorization better than aluminum based hematoxylin formulations

Sigma-Aldrich™ Crystal Violet Solution

For Gram's staining of heat-fixed films and tissue

Sigma-Aldrich™ Sigma-Aldrich™ Hematoxylin Gill Solution

Nuclear stains intended for use in histology and cytology

Sigma-Aldrich™ α-Naphthyl Acetate Solution

For demonstration of non-specific esterase activity in leukocytes

Sigma-Aldrich™ Leukocyte Alkaline Phosphatase Kit

Based on naphthol AS-MX phosphate and fast red violet B salt