Laboratory Stains and Dyes
Laboratory stains and dyes for hematology, microbiology and histology - Gram stain sets, Wright and Wright-Giemsa, hematoxylin and eosin, acid-fast Ziehl-Neelsen and Kinyoun, methylene blue and special stains from StatLab, Poly Scientific, Hardy Diagnostics and Newcomer Supply. Stocked in ready-to-use working solutions and concentrates, in dropper bottles, bench bottles and bulk volumes. Wholesale case pricing for hospitals, reference labs, pathology and clinical procurement.
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Stains and Dyes for Hematology, Microbiology and Histology
Stains and dyes color cellular and microbial structures so they can be examined under the microscope. The catalog groups these by application - hematology differentials, microbiology identification, histologic tissue staining and special stains - and by ready-to-use versus concentrate format. Stain grade and format are tracked in the laboratory formulary because staining consistency affects diagnostic reads across the bench.
Stain Lines Stocked
- Gram stain sets - Crystal violet, iodine, decolorizer and safranin as complete sets and individual components for bacterial classification.
- Wright and Wright-Giemsa - Romanowsky stains for peripheral blood and bone marrow differentials, in ready-to-use and buffered concentrate formats.
- Hematoxylin and eosin - H and E staining reagents for routine histology, including progressive and regressive hematoxylin formulations and eosin counterstain.
- Acid-fast stains - Ziehl-Neelsen and Kinyoun carbolfuchsin stain sets for mycobacteria and other acid-fast organisms.
- Special and simple stains - Methylene blue, India ink, iodine, KOH prep reagents, and histologic special stains such as PAS, GMS and trichrome.
Stain Application Overview
| Stain | Application | Format | Representative Brands |
|---|---|---|---|
| Gram stain set | Bacterial classification | Ready-to-use kit | Hardy, StatLab |
| Wright-Giemsa | Blood and marrow differential | Ready-to-use, concentrate | Poly Scientific |
| Hematoxylin and eosin | Routine histology | Bench bottle, bulk | StatLab, Newcomer |
| Ziehl-Neelsen / Kinyoun | Acid-fast organisms | Stain set | Hardy, Poly Scientific |
| Special stains (PAS, GMS) | Histologic targets | Kit | StatLab, Newcomer |
Ready-to-Use and Concentrate Formats
Most stains in this category are stocked in two forms. Ready-to-use working solutions arrive at final dilution for direct application, which standardizes staining and simplifies bench handling. Concentrates are supplied at higher strength for in-house dilution, which reduces shipping and storage volume for laboratories that stain at high throughput. Automated stainer-compatible formats are stocked for hematology and histology platforms that dispense reagent from bulk containers.
Stains and dyes are a per-slide reagent consumable that tracks differential, culture and tissue-section volume across the laboratory. Because staining consistency underpins the diagnostic read, hematology and histology labs standardize on stain lines and keep Gram sets, Wright-Giemsa and hematoxylin and eosin on standing orders, where case pricing affects the per-slide reagent cost. Order at the best Wholesale Prices with MAP Medical.
Frequently Asked Questions
What stains are included in a Gram stain set?
A Gram stain set includes crystal violet as the primary stain, Gram iodine as the mordant, a decolorizer of acetone or alcohol, and safranin as the counterstain. The catalog stocks these as complete ready-to-use kits and as individual component bottles so a laboratory can replace single reagents. Both dropper-bottle and bulk formats are available for manual and automated staining.
What is the difference between Wright and Wright-Giemsa stain?
Wright stain is a Romanowsky stain used for peripheral blood differentials, while Wright-Giemsa combines Wright stain with Giemsa to give enhanced nuclear and cytoplasmic detail useful for blood and bone marrow work. Both are stocked in ready-to-use working solutions and buffered concentrate formats, along with the phosphate buffer used to control staining pH.
Are stains available in automated stainer formats?
Yes. Common hematology and histology stains are stocked in bulk and automated-stainer-compatible containers that dispense reagent on platform-based staining systems, in addition to manual dropper and bench bottle formats. Ready-to-use and concentrate options let a laboratory match reagent format to its manual or automated staining workflow.
Can labs order laboratory stains in bulk?
Yes. Laboratory stains and dyes are stocked in bottle, case and bulk quantities for hospitals, reference laboratories, pathology services, physician office labs and licensed distributors. Standing order programs are available for high-velocity reagents such as Gram stain sets, Wright-Giemsa and hematoxylin and eosin. Contact our procurement team for tiered case pricing and standing order setup.
What stains should be in a laboratory formulary?
A core stain formulary typically includes a Gram stain set for microbiology, Wright-Giemsa for hematology differentials, hematoxylin and eosin for histology, an acid-fast stain set for mycobacteria, and common simple stains such as methylene blue and iodine. Histology labs add special stains such as PAS, GMS and trichrome. MAP Medical builds consolidated stain formulary packages matched to bench menu and volume - contact our team for an assessment.