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L11939 Thiazolyl Blue tetrazolium bromide, 98%

CAS Number
3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide

Stock No. Size Price ($) Quantity Availability
L11939-03 1g 46.90
L11939-06 5g 144.00
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Thiazolyl Blue tetrazolium bromide, 98%


Chemical Properties

Formula Weight
Melting point
ca 195° dec.
Storage & Sensitivity
Moisture Sensitive. Air Sensitive. Light Sensitive. Store under Nitrogen. Ambient temperatures.
Soluble in water, ethanol, 2-methoxyethanol and phosphate buffered saline.


Used in measurement of cell proliferation. Produces a yellowish solution that is converted to dark blue, water-insoluble MTT formazan by mitochondrial dehydrogenases of living cells.Thiazolyl Blue tetrazolium bromide is a dye used in measurement of cell proliferation. It is used as a direct indicator of cytotoxicity (such as for screening cancer drugs) and apoptosis. As an electron acceptor, it is utilized for studying nicotinamide adenine dinucleotide phosphate (NADP)-dependent dehydrogenases.


Light, air and moisture sensitive. Store in a cool place. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents.

Literature References

Ma, W.; Xu, A.; Ying, J.; Li, B.; Jin, Y. Biodegradable Core-Shell Copolymer-Phospholipid Nanoparticles for Combination Chemotherapy: An In Vitro Study. J. Biomed. Nanotechnol. 2015, 11 (7), 1193-1200.

Wei, D.; Chen, T.; Yan, M.; Zhao, W.; Li, F.; Cheng, W.; Yuan, L. Synthesis, characterization, antioxidant activity and neuroprotective effects of selenium polysaccharide from Radix hedysari. Carbohydr. Polym. 2015, 125, 161-168.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335-H341

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Suspected of causing genetic defects.

Precautionary Statements: P201-P202-P261-P264b-P271-P280i-P281-P302+P352-P304+P340-P305+P351+P338-P308+P313-P332+P313-P337+P313-P362-P501c

Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear eye/face protection. Use personal protective equipment as required. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or concerned: Get medical advice/attention. If skin irritation occurs: If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • A13280

    Dimethyl sulfoxide, 99+%
  • A14965

    Tetraethoxysilane, 98%
  • A15029

    1-Chloronaphthalene, tech. 85%, remainder 2-chloronaphthalene
  • A18836

    Amidosulfonic acid, 98+%
  • L05316

    3-Aminocrotononitrile, (E)+(Z), 96%

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