3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester
3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester (CAS: 1176-74-5; C22H14Br4O4) is a brominated derivative of phenolphthalein, featuring an ethyl ester group. This compound is primarily recognised for its utility as a laboratory reagent and a building block in organic synthesis. Its specific chemical structure lends itself to various research applications, particularly where a functionalised aromatic core with bromine substituents is required.
- Synonyms
- 5′,5″-Tetrabromophenolphthalein ethyl ester

Organic Synthesis Intermediate
Serves as a versatile intermediate in the synthesis of more complex organic molecules. The presence of bromine atoms allows for diverse cross-coupling reactions and other functional group transformations.
Laboratory Reagent
Utilised in research laboratories for analytical purposes or as a component in the development of novel chemical entities. Its well-defined structure makes it suitable for controlled experimental procedures.
Material Science Research
May be employed in the exploration of new materials, leveraging its aromatic structure and halogenation for specific physical or chemical properties.
| Molecular weight | 661.96 |
|---|---|
| Empirical formula | C22H14Br4O4 |
| Grade | for microscopy |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester used for?
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This compound is primarily used as an intermediate in organic synthesis and as a laboratory reagent for research purposes.
What are the CAS number and molecular formula?
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The CAS number is 1176-74-5, and the empirical formula is C22H14Br4O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester in a grade suitable for microscopy. Further purity specifications can be provided upon request.
How should 3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester be handled?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound is classified under WGK Germany 3, indicating a hazard to water.
Is 3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester a controlled substance?
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Based on the provided data, there is no indication that 3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester is a controlled substance.
How is this chemical packed and shipped?
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Tech Serve Solutions exports fine chemicals globally. Specific packaging and shipping details are handled according to international regulations and customer requirements.
How can I request a quote or sample?
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To request a quote or sample of 3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester, please contact the Tech Serve Solutions sales department via our website or direct contact details.
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