Cary-Blair Transport Medium in 250g powder form for pathogen sample collection, transport, and preservation

Cary-Blair Transport Medium Powder

Let us know which dry culture media products you’re interested in, including specifications and quantities. We’ll reply promptly.

Cary-Blair Transport Medium is a dehydrated, semi-solid transport medium formulated for the collection, transport, and short-term preservation of pathogenic microorganisms, especially enteric pathogens.

The medium features a high pH and reduced nutrient content, which helps maintain microbial viability while minimizing overgrowth during specimen transport from collection sites to microbiology laboratories.

⚠ For laboratory and research use only. Not for therapeutic or clinical treatment use.


🔬 Intended Use

  • Collection of pathogenic microorganism specimens

  • Transport of clinical and environmental samples

  • Temporary preservation prior to microbiological examination


📦 Product Specifications

  • Product Name: Cary-Blair Transport Medium

  • English Name: Cary-Blair Transport Medium

  • Physical Form: Dehydrated powder

  • Package Size: 250 g / bottle

  • Storage Condition: Room temperature (RT)

  • Shelf Life: 3 years


🧪 Medium Composition (per liter)

  • Sodium chloride ……………………………. 5.0 g

  • Sodium hydrogen phosphate …………… 1.1 g

  • Sodium thioglycollate …………………….. 1.5 g

  • Calcium chloride …………………………… 0.09 g

  • Agar ………………………………………….. 5.0 g

Final pH: 8.4 ± 0.1 (25 °C)


⚗️ Preparation Instructions

  1. Suspend 12.7 g of the powder in 1 L of distilled or deionized water.

  2. Heat to boiling with stirring until completely dissolved.

  3. Dispense into suitable containers.

  4. Sterilize at 121 °C for 15 minutes.

  5. Allow to cool slightly, gently mix, and let solidify.

  6. Store prepared medium for use.


📦 Storage & Stability

  • Store dehydrated medium at room temperature

  • Protect from moisture and light

  • Keep container tightly closed