Tropaeolin O

Jump to:

Specifications for Product Family Product Family Options

About this item

Tropaeolin O, also known as Chrysoine resorcinol or Yellow T, is a synthetic azo dye used as a pH indicator.

Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

Synonyms: CI 14270, Tropaeolin O sodium salt, Sulpho orange, Chrysoin, Sulfo orange, 2,4-Dihydroxyazobenzene-4'-sulphonic acid sodium salt, Sodium 2,4-Dihydroxyazobenzene-4'-sulphonate, Acid Orange 6, Resorcinol Yellow

CAS Number:547-57-9
Formula:C₁₂H₉N₂O₅SNa
MDL Number:MFCD00007499
Molecular Weight:316.26 g/mol
Storage Temperature:Ambient

2 Options Available Below

Some Products May Be Restricted

Certain products—like chemicals or medical devices—require additional account verification steps to be able to place an order or specific license or customer documentation. More info

Return Policy

Product Details & Documents

Tropaeolin O, also known as Chrysoine resorcinol or Yellow T, is a synthetic azo dye used as a pH indicator.

Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

CAS Number:547-57-9
Formula:C₁₂H₉N₂O₅SNa
MDL Number:MFCD00007499
Molecular Weight:316.26 g/mol
Storage Temperature:Ambient

Documents

Product specification

TR145_spec.pdf

Specifications for Product Family

Specification Test Results

Absorption Max:
387 NM
Visual Transition Intervals:
pH 11.0 (Yellow)

Product Family Options

Product Information

Some Products May Appear Restricted

To ensure a smooth and speedy checkout, please log in to your account. Some items may show as restricted simply because you're not logged in.

If you do not have an account, you can register using our registration webform (https://www.avantorsciences.com/us/en/login/register)

If you're still seeing restrictions after logging in, certain products—like chemicals or medical devices—require additional account verification steps to be able to place an order. Some items may additionally require a specific license or customer documentation; additional documentation will be requested for these items prior to shipment.

Recommendations