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| CAS No.: | 533-73-3 |
| Formula: | C6h6o3 |
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| Item | Specifications |
| Appearance | White to light beige or gray crystalline powder. |
| Purity | 98% Min |
| Moisture | 0.5% Max |
| Ash | 0.5% Max |
| Iron | 50PPM Max |
1. Chemical Identifiers
Systematic Name: 1,2,4-Benzenetriol
Common Names:
Hydroxyhydroquinone
1,2,4-Trihydroxybenzene
CAS Registry Number: 533-73-3
EC Number: 208-575-1
Molecular Weight: 126.11 g/mol
2. Composition and Structure
Description: A polyhydroxy benzene derivative with three hydroxyl (-OH) groups attached to the benzene ring at the 1, 2, and 4 positions.
Key Feature: It is a reducing agent and a resonance-stabilized compound. As a trihydroxybenzene, it shares some chemical properties with other benzenetriols (like pyrogallol, 1,2,3-benzenetriol) and hydroquinone.
3. Physical Properties
Appearance: White to light beige or gray crystalline powder. Can darken upon exposure to air and light due to oxidation.
Melting Point: ~140.5 °C
Solubility: Freely soluble in water, ethanol, ether, and acetone.
Chemical Intermediate and Reagent:
Photography: Historically used as a developing agent in photographic developers.
Dye and Pigment Synthesis: Serves as a building block for certain dyes and organic pigments.
Polymer Industry: Can be used as a monomer or antioxidant/stabilizer precursor.
Analytical Chemistry: Utilized as a reagent in some colorimetric tests and analytical procedures.
Research Chemical: Used in organic synthesis and biochemical studies.
Potential Natural Occurrence: May be present as a metabolite or a component in some plants and natural products.
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