Indigo carmine, pH indicator and tissue stain (ab146352)
Key features and details
- pH indicator and tissue stain.
- CAS Number: 860-22-0
- Soluble in water to 10 mM
- Form / State: Solid
- Source: Synthetic
Overview
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Product name
Indigo carmine, pH indicator and tissue stain -
Description
pH indicator and tissue stain. -
Alternative names
- Acid Blue 74
- C.I. 73015
- FD&C Blue No. 2
see all -
Biological description
pH indicator (blue at pH 11.4 and yellow at 13.0). Tissue stain. Also a tool for the determination of hypochlorite.
Absorption: λmax 608 nm
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CAS Number
860-22-0 -
Chemical structure
Properties
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Chemical name
2-(1,3-Dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-Indole-5-sulfonic acid disodium salt -
Molecular weight
466.40 -
Molecular formula
C16H8N2Na2O8S2 -
Storage instructions
Store at Room Temperature. The product can be stored for up to 12 months. -
Solubility overview
Soluble in water to 10 mM -
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
