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Methyl red solution
SKU 1HHP.1
€ 59,28
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Methyl red solution
Product Details
P-phrases: P273 P280 P302+P352 P305+P351+P338 P312
H-phrases: H302-H315-H318-H412
CAS number: 151-21-3
Chemical formulas: C12H25NaO4S
HS code: 29270000
Brand: Carl Roth
Methyl red supplement, for microbiology, Molar mass (M) 269,31 g/mol, Density (D) ~0,79 g/cm³, Flash point (flp) 22 °C, Boiling point (bp) 78 °C, Storage temp. +15 to +25 °C, CAS No. [493-52-7], UN-Nr. 1170, Empirical formula C15H15N3O2
Methyl red solution 2 %, for microbiology
Toepassing
Acid formation during mixed acid fermentation is detected with the methyl red test (MR test).
Mixed acid fermentation produces a lot of acid (pH<4.4), which leads to a deep red colour (positive) after adding the methyl red solution. If no mixed acid fermentation takes place, little acid is present and a yellow/orange colour (negative) results.
The methyl red test is part of the Bunte series for the differentiation of bacteria, especially from the Enterobacteriaceae group.
Technische informatie
| Toepassing | Methyl red test, MRVP test |
| Appearance | clear, red liquid |
| Concentration | 2 % |
| Suitability for microscopy | complies |
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