2-Chloro-4,6-dinitrophenol
2-Chloro-4,6-dinitrophenol (CAS 946-31-6) is a chemical compound with the molecular formula C6H3ClN2O5. Available at 97% assay, this organic building block serves as a valuable intermediate in various chemical syntheses. Its applications are primarily found in analytical chemistry, particularly in the identification and quantification of components within chemical wastewater and biological treatment plant effluents using advanced mass spectrometry techniques.
- Synonyms
- C6H3ClN2O5

Analytical Chemistry Reagent
2-Chloro-4,6-dinitrophenol is utilised for identifying components in chemical wastewater. It is also employed in analysing effluents from biological wastewater treatment plants.
Mass Spectrometry Analysis
This compound is instrumental in analyses conducted using electrospray ionisation and tandem mass spectrometry. It aids in the detection and characterisation of specific substances within complex sample matrices.
Organic Synthesis Intermediate
As an organic building block, 2-Chloro-4,6-dinitrophenol can be used in the synthesis of more complex organic molecules. Its functional groups allow for further chemical modifications.
| Molecular weight | 218.55 |
|---|---|
| Empirical formula | C6H3ClN2O5 |
| Assay | 97% |
| Application | 2-Chloro-4,6-dinitrophenol was used in identification of components in chemical waste water and in effluents from biological wastewater treatment plant using electrospray ionization and tandem mass spectrometry1. |
| Melting point | 110-114 °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 |
|---|---|
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 2 |
| 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-Chloro-4,6-dinitrophenol used for?
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2-Chloro-4,6-dinitrophenol is primarily used in analytical chemistry for identifying components in chemical wastewater and effluents from biological wastewater treatment plants, often utilising mass spectrometry techniques. It also serves as an intermediate in organic synthesis.
What is the CAS number and molecular formula for 2-Chloro-4,6-dinitrophenol?
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The CAS number for 2-Chloro-4,6-dinitrophenol is 946-31-6, and its molecular formula is C6H3ClN2O5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-4,6-dinitrophenol with a minimum assay of 97%. This product is supplied for research and laboratory use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety considerations when handling 2-Chloro-4,6-dinitrophenol?
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2-Chloro-4,6-dinitrophenol is a Warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves, should be worn. Handle in a well-ventilated area.
How is 2-Chloro-4,6-dinitrophenol packed and exported?
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2-Chloro-4,6-dinitrophenol is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a sample or quote for 2-Chloro-4,6-dinitrophenol?
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To request a sample or a quote for 2-Chloro-4,6-dinitrophenol, please contact the Tech Serve Solutions sales team via our website or direct contact details.
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