2-Phenylhydroquinone
2-Phenylhydroquinone (CAS: 1079-21-6), with the molecular formula C6H5C6H3(OH)2 and a molar mass of 186.21 g/mol, is an organic compound featuring a biphenyl structure with two hydroxyl groups. It serves as a valuable building block in organic synthesis and is an important intermediate in the production of various chemical compounds. Its utility spans across different chemical research and development sectors.
- IUPAC
- 2,5-Dihydroxybiphenyl,2,5-Biphenyldiol
- Synonyms
- 2,5-Dihydroxybiphenyl2,5-Biphenyldiol

Organic Synthesis Intermediate
2-Phenylhydroquinone is employed as a precursor in the synthesis of more complex organic molecules. Its dihydroxy functionality allows for various chemical transformations, making it a versatile component in multi-step synthetic pathways.
Research and Development
This compound is utilised in laboratory settings for exploring new chemical reactions and developing novel materials. It acts as a key reagent for chemists investigating structure-activity relationships or designing new functional molecules.
Polymer Chemistry
As a diol, 2-Phenylhydroquinone can potentially be incorporated into polymer chains, contributing specific properties to the resulting materials. Its aromatic nature can enhance thermal stability and rigidity.
| Molecular weight | 186.21 |
|---|---|
| Linear formula | C6H5C6H3(OH)2 |
| Assay | 97% |
| Melting point | 98-100 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 2-Phenylhydroquinone primarily used for?
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2-Phenylhydroquinone is primarily used as a building block and intermediate in organic synthesis and chemical research and development.
What are the CAS number and formula for 2-Phenylhydroquinone?
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The CAS number for 2-Phenylhydroquinone is 1079-21-6 and its molecular formula is C6H5C6H3(OH)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Phenylhydroquinone with an assay of 97%. This product is intended for research and chemical synthesis purposes and is not represented as USP, BP, or EP grade.
How should 2-Phenylhydroquinone be handled?
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2-Phenylhydroquinone is a warning irritant (H315, H319, H335). Handle with appropriate personal protective equipment, including a dust mask (N95 type recommended), eyeshields, and gloves. Ensure adequate ventilation and avoid breathing dust.
Is 2-Phenylhydroquinone a controlled substance?
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Based on the provided data, there is no indication that 2-Phenylhydroquinone is a controlled substance.
How is 2-Phenylhydroquinone packed and shipped?
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2-Phenylhydroquinone is carefully packaged to maintain its integrity during transit and is exported globally by Tech Serve Solutions. Specific packaging details are available upon request.
How can I request a quote or sample for 2-Phenylhydroquinone?
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To request a quote or sample for 2-Phenylhydroquinone, please contact the Tech Serve Solutions sales team through our website or by phone.
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