Gram Stain Set, Stabilized Iodine


Product #: 6400 & 6600

4 x 8 oz – 6400

4 x 16 oz – 6600

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Gram Stain Set (stabilized) is used for staining bacteria from cultures or patient specimens by the differential Gram stain method.  Gram-positive and Gram-negative bacteria are both stained by the crystal violet stain. Addition of the iodine leads to the formation of a crystal violet-iodine complex within the cell wall. The decolorizer extracts lipids from the cell wall of Gram negative bacteria, increasing the porosity of the cell wall and allowing the crystal violet-iodine complex to diffuse from the cell. At the same time, Gram-positive bacteria are dehydrated, causing a decrease in cell wall porosity and trapping the crystal violet-iodine complex within the cell. Due to the increase in porosity, the safranin counterstain is able to permeate the cell wall of the Gram-negative bacteria.  Set contains:  A.) Crystal Violet, B.) Stabilized Iodine, C.) Decolorizer, D.) Safranin. Recommended replacement for Harleco® Gram Stain Set for Microbiology, 65092-93.

For in vitro diagnostic use [IVD]


Additional information

Weight 1.2247 lbs
Dimensions 15.24 × 15.24 × 20.32 in

4 x 16 oz, 4 x 8 oz

Safety Data Sheet

View Safety Data Sheet

Hazard Information

UN Hazard Code: 1993

Hazard Description: Danger. Flammable liquid. Causes mild skin irritation. Causes serious eye irritation. May cause long lasting harmful effects to aquatic life.