Methyl red sodium salt, pH indicator (ab146369)
Key features and details
- pH indicator.
- CAS Number: 845-10-3
- Soluble in water and ethanol
- Form / State: Solid
- Source: Synthetic
Overview
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Product name
Methyl red sodium salt, pH indicator -
Description
pH indicator. -
Alternative names
- Acid Red 2
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Biological description
pH indicator turning red under pH 4.4, yellow over pH 6.2, and orange in between those values. Azo dye used in microbiology to identify bacteria that produce stable acids through mixed acid fermentation of glucose.
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CAS Number
845-10-3 -
Chemical structure
Properties
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Chemical name
2-[[4-(Dimethylamino)phenyl]azo]benzoic acid sodium salt -
Molecular weight
291.28 -
Molecular formula
C15H14N3NaO2 -
Storage instructions
Store at Room Temperature. The product can be stored for up to 12 months. -
Solubility overview
Soluble in water and ethanol -
Handling
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
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Source
Synthetic