Thiazole orange ~90% (dye content), Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
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Synonyms: 1-Methyl-4-[(3-methyl-2(3H)-benzothiazolylidene)methyl]quinolinium p-tosylate

M-Clarity™ quality level = MQ200

390062-1G 390062-250MG
390062-1GEA 253 EUR
390062-1G 390062-250MG
Thiazole orange ~90% (dye content), Sigma-Aldrich®
Thiazole orange

Thiazole orange has been used for the staining and thereby quantification of reticulocytes.


Thiazole Orange can be tethered with peptide nucleic acid for the detection of target nucleic acid in homogeneous solution. It is a dye with, both predicted physical characteristics and the biological staining characteristics of a good reticulocyte dye, hence it is considered as a dye for reticulocyte analysis. It has massive fluorescence enhancement and high quantum yield upon binding to nucleic acids, particularly RNA. It is non precipitating and can permeates through live cell membranes.

Formula: C₂₆H₂₄N₂O₃S₂
MW: 476,61 g/mol
Melting Pt: 270 °C (dec., lit.)
Storage Temperature: RT
MDL Number: MFCD00192499
CAS Number: 107091-89-4
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Specification Test Results

Appearance (Colour) Orange to Very Dark Orange and Orange-Red and Red-Orange and Dark Red-Orange
Appearance (Form) Powder
Infrared spectrum Conforms to Structure
Wavelength 235 - 239 nm
Extinction Coefficient ≥10000
Extinction Coefficient, Methanol ≥28000
Carbon 57.6 - 73.4%
Nitrogen 4.9 - 6.2%

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