M

MTT

IUPAC: 2-(3,5-diphenyltetrazol-2-ium-2-yl)-4,5-dimethyl-1,3-thiazole bromide

C18H16BrN5S Laboratory Reagents CAS 298-93-1
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Quick Reference
Formula / NotationC18H16BrN5S
CAS Number298-93-1
Molecular Weight414.3
Melting Point195 °C (decomposes)
SolubilitySolubility in 2-methoxyethanol, 20 mg/mL; ethanol, 20 mg/mL
AppearanceYellow solid; [HSDB] Yellow crystalline solid; [MSDSonline]
Also Known As2-(3,5-diphenyltetrazol-2-ium-2-yl)-4,5-dimethyl-1,3-thiazole bromide; Thiazolyl blue; 298-93-1; MMT Tetrazolium; Thiazolyl Blue Monotetrazolium; 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide; 3-(4,5-Dimethylthiazolyl)-2,5-diphenyltetrazolium bromide; 3-(4,5-Dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide; EUY85H477I; 3-(4,5-dimethyl-1,3-thiazol-2-yl)-2,5-diphenyl-2H-tetrazol-3-ium bromide
CategoryLaboratory Reagents

What is MTT?

3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide is the bromide salt of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium. It has a role as a dye and a colorimetric reagent. It contains a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium.

Formula & Notation

C18H16BrN5S

IUPAC Name: 2-(3,5-diphenyltetrazol-2-ium-2-yl)-4,5-dimethyl-1,3-thiazole bromide

Other Names / Synonyms: 2-(3,5-diphenyltetrazol-2-ium-2-yl)-4,5-dimethyl-1,3-thiazole bromide; Thiazolyl blue; 298-93-1; MMT Tetrazolium; Thiazolyl Blue Monotetrazolium; 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide; 3-(4,5-Dimethylthiazolyl)-2,5-diphenyltetrazolium bromide; 3-(4,5-Dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide; EUY85H477I; 3-(4,5-dimethyl-1,3-thiazol-2-yl)-2,5-diphenyl-2H-tetrazol-3-ium bromide

Properties & Characteristics

Appearance: Yellow solid; [HSDB] Yellow crystalline solid; [MSDSonline]. Molecular formula: C18H16BrN5S. Molecular weight: 414.3 g/mol. Melting point: 195 °C (decomposes). Solubility: Solubility in 2-methoxyethanol, 20 mg/mL; ethanol, 20 mg/mL. Vapor pressure: 5.11X10-11 mm Hg at 25 °C /Estimated/.

Physical Data

PropertyValue
Melting Point195 °C (decomposes)
Molecular Weight414.3
SolubilitySolubility in 2-methoxyethanol, 20 mg/mL; ethanol, 20 mg/mL
AppearanceYellow solid; [HSDB] Yellow crystalline solid; [MSDSonline]

Uses & Applications

Used as a synthetic reagent for transformations including oxidation, reduction, coupling, or functional group manipulation.

Safety Information

Hazardous reagent. May be toxic, corrosive, flammable, or reactive. Use in fume hood with full PPE. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term MTT
Formula C18H16BrN5S
CAS Number 298-93-1
Molecular Weight 414.3
Synonyms 2-(3,5-diphenyltetrazol-2-ium-2-yl)-4,5-dimethyl-1,3-thiazole bromide; Thiazolyl blue; 298-93-1; MMT Tetrazolium; Thiazolyl Blue Monotetrazolium; 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide; 3-(4,5-Dimethylthiazolyl)-2,5-diphenyltetrazolium bromide; 3-(4,5-Dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide; EUY85H477I; 3-(4,5-dimethyl-1,3-thiazol-2-yl)-2,5-diphenyl-2H-tetrazol-3-ium bromide

Frequently Asked Questions

3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide is the bromide salt of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium. It has a role as a dye and a colorimetric reagent. It contains a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.