2-Chloro-1,4-benzoquinone
2-Chloro-1,4-benzoquinone (CAS 695-99-8) is an organic compound with the molecular formula C6H3ClO2 and a molecular weight of 142.54 g/mol. This quinone derivative serves as a valuable building block in organic synthesis, particularly in reactions involving carbonyl compounds and ketones. It is widely utilized in chemical synthesis for constructing more complex molecular structures, finding application in research and development laboratories.
- Synonyms
- C6H3ClO2

Organic Synthesis Intermediate
This compound is an important intermediate in the synthesis of various organic molecules. Its reactive quinone structure allows for diverse chemical transformations.
Research and Development
2-Chloro-1,4-benzoquinone is frequently employed in research laboratories for the exploration of new synthetic routes and the development of novel compounds.
Building Block for Complex Molecules
As a key organic building block, it facilitates the construction of more intricate molecular architectures in academic and industrial research settings.
| Molecular weight | 142.54 |
|---|---|
| Empirical formula | C6H3ClO2 |
| Assay | 95% |

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) | 26-37/39 |
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-Chloro-1,4-benzoquinone used for?
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2-Chloro-1,4-benzoquinone is primarily used as a building block in organic synthesis and in chemical research and development laboratories for constructing complex molecules.
What is the CAS number and formula for 2-Chloro-1,4-benzoquinone?
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The CAS number for 2-Chloro-1,4-benzoquinone is 695-99-8, and its empirical formula is C6H3ClO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-1,4-benzoquinone with an assay of 95%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should 2-Chloro-1,4-benzoquinone be handled safely?
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Due to its irritant properties (H315, H319, H335), handle 2-Chloro-1,4-benzoquinone with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure adequate ventilation.
Does Tech Serve Solutions export this chemical?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 2-Chloro-1,4-benzoquinone.
How can I request a quote or sample?
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To request a quote or sample of 2-Chloro-1,4-benzoquinone, please contact our sales team via the details provided on our website.
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