M2128

Thiazolyl Blue Tetrazolium Bromide

98%

• Synonym(s): 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide, MTT, Methylthiazolyldiphenyl-tetrazolium bromide
• Empirical Formula (Hill Notation): C₁₈H₁₆BrN₅S
• CAS Number: 298-93-1
• Molecular Weight: 414.32
• Beilstein: 4081397
• EC Number: 206-069-5
• MDL number: MFCD00011964
• PubChem Substance ID: 24896603
• NACRES: NA.47

Properties

• Quality Level: 200
• Assay: 98%
• form: powder
• mp: 195 °C (dec.) (lit.)
• solubility: 2-methoxyethanol: soluble 20 mg/mL; ethanol: soluble 20 mg/mL; H₂O: 5 mg/mL
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: 2-8°C
• SMILES string: [Br-].Cc1nc(sc1C)-[n+]2nc(nn2-c3ccccc3)-c4ccccc4
• InChI: 1S/C18H16N5S.BrH/c1-13-14(2)24-18(19-13)23-21-17(15-9-5-3-6-10-15)20-22(23)16-11-7-4-8-12-16;/h3-12H,1-2H3;1H/q+1;/p-1
• InChI key: AZKSAVLVSZKNRD-UHFFFAOYSA-M

Description

Application

Thiazolyl Blue Tetrazolium Blue (MTT) may be used in measurement of cell proliferation. MTT produces a yellowish solution that is converted to dark blue, water-insoluble MTT formazan by mitochondrial dehydrogenases of living cells. The blue crystals are solubilized with acidified isopropanol and the intensity is measured colorimetrically at 570 nm. MTT has been used as a histochemical/cytochemical reagent and for the detection of NAD. ADP-linked enzyme systems in tissue cannot be detected with MTT, due to binding of the cation by the cyanide trap used. MTT is rapidly reduced to the formazan, which chelates with nickel, copper, and cobalt; the cobalt chelate has been used in oxidative systems.

Thiazolyl Blue Tetrazolium Bromide has been used for the following assays:

• Proliferation assay.
• TNF (tumor necrosis factor) bioassay.

Safety Information

• Pictograms: GHS07,GHS08
• Signal Word: Warning
• Hazard Statements: H315 - H319 - H335 - H341
• Precautionary Statements: P202 - P261 - P264 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Eye Irrit. 2 - Muta. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves