Catechol (1,2-Dihydroxybenzene)
CAS Number: 120-80-9
Catechol (1,2-dihydroxybenzene) is an ortho-diphenol used as a dye intermediate in the synthesis of mordant dyes and as a reducing agent in photographic developer formulations. In the dye industry, it serves as a building block for anthraquinone-type dye precursors and metal-complex dyes that exploit catechol's strong chelating ability toward iron and other transition metals. Chemzip provides high-purity catechol for dye, pharmaceutical, and fine chemical synthesis.
Technical Specifications
| appearance | White crystalline solid |
| purity (%) | ≥99.0 |
| water content (%) | ≤0.2 |
| melting point (°C) | 104–106 |
Applications
- Mordant dye and metal-complex dye synthesis
- Photographic developer formulation (BW film processing)
- Anthraquinone precursor synthesis
- Pharmaceutical intermediate (L-DOPA, epinephrine pathway)
- Fragrance and flavor chemical (guaiacol, vanillin pathway)
Key Features
- High-purity grade with low residual color for sensitive synthesis applications
- Strong chelating properties enable unique metal-complex dye architectures
- Nitrogen-blanketed storage containers prevent oxidative darkening
- Batch certificates with HPLC purity data available on request
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CAS Number
120-80-9
Category
Dye / Pigment IntermediatesAvailability
In StockSample
Dispatched within 5 days