Methyl red
0.025% ethanol solution
Reagent
Code: #203524
Alias
Methyl red; methyl red, alkyl red, methane red, para-dimethylaminoazobenzene ortho-carboxylic acid, acidic red 2
CAS Number
493-52-7
science Other reagents with same CAS 493-52-7
blur_circular Chemical Specifications
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Molecular Information
Weight
269.3 g/mol
Formula
C₁₅H₁₅N₃O₂
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Registry Numbers
EC Number
207-776-1
MDL Number
MFCD00002425
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Storage & Handling
Storage
Room temperature
description Product Description
Used as a pH indicator in laboratory settings, particularly in microbiology for the methyl red test to identify bacteria that perform mixed acid fermentation, such as *Escherichia coli*. It is also employed in titrations and analytical chemistry to detect pH changes in the range of 4.4 to 6.2, where it shifts from red to yellow. Additionally, methyl red finds use in dyeing textiles and as a colorant in some industrial processes.
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