Home / Products / Immunohistochemistry/ Immunocytochemistry / Counterstains Counterstains Vector Laboratories’ counterstains are specially prepared, thoroughly tested and packaged as convenient, ready-to-use solutions for use on individual slides or in staining dishes. Our counterstains stain cell nuclei and are recommended for interpretation of tissue morphology. A straightforward step by- step protocol is provided with each counterstain. Vector Labs offers counterstains that produce three different colors - blue (Vector Hematoxylin, H-3401, and Vector Hematoxylin QS, H-3404), green (Vector Methyl Green, H-3402) and pink (Vector Nuclear Fast Red, H-3403). Vector Hematoxylin is based on Gill’s formulation and is mercury free. Vector Hematoxylin QS, the quick staining formula, is based on Mayer’s formula, requires no separate blueing step, and stains in less than 45 seconds. Vector Methyl Green is a superior formulation of methyl green suitable for use with a wide range of enzyme substrates (see compatibility chart below). Vector Nuclear Fast Red Counterstain stains nuclei pink in a rapid, one-step procedure. Please consult the table for counterstain compatibility with substrates for best results. 4 Showing Position Name Catalog Number Price View as: List Grid Show 30 60 120 VECTOR Hematoxylin Catalog Number: H-3401 Unit Size: 500 ml Add to Wishlist | Add to Compare As low as: $108.00 $135.00 Add to Cart VECTOR Hematoxylin QS Catalog Number: H-3404 Unit Size: 100 ml Add to Wishlist | Add to Compare As low as: $96.00 $120.00 Add to Cart VECTOR Methyl Green Catalog Number: H-3402 Unit Size: 500 ml Add to Wishlist | Add to Compare As low as: $120.00 $150.00 Add to Cart VECTOR Nuclear Fast Red Catalog Number: H-3403 Unit Size: 500 ml Add to Wishlist | Add to Compare As low as: $136.00 $170.00 Add to Cart 4 Showing Position Name Catalog Number Price View as: List Grid Show 30 60 120 Didn't find what you were looking for? Submit a suggestion.