Potassium nitrosodisulfonate
Potassium nitrosodisulfonate (CAS: 14293-70-0), with the linear formula (KSO3)2NO and a molecular weight of 268.33 g/mol, is a versatile chemical reagent. It is particularly noted for its utility as an oxidizing agent. This compound finds application in organic synthesis, facilitating the oxidation of phenols and anilines to their corresponding quinones, making it a valuable tool for chemists.
- IUPAC
- Fremy’s salt

Oxidation of Phenols
Potassium nitrosodisulfonate is employed as a reagent for the oxidation of various phenols. This reaction transforms phenols into their corresponding quinone structures, a key step in many synthetic pathways.
Oxidation of Anilines
The compound serves as an effective oxidizing agent for anilines, converting them into quinones. This application is crucial in the synthesis of complex organic molecules and intermediates.
Chemical Synthesis Reagent
As a valuable synthetic reagent, potassium nitrosodisulfonate contributes to the broader field of chemical synthesis by providing a specific oxidation capability for organic substrates.
| Molecular weight | 268.33 |
|---|---|
| Linear formula | (KSO3)2NO |
| Storage temperature | 2-8°C |
| Application | Useful reagent for the oxidation of a variety of phenols and anilines to quinones.1,2 |


Hazard statements
- H260In contact with water releases flammable gases
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H332Harmful if inhaled
Precautionary statements
- P223Do not allow contact with water
- P231Handle under inert gas
- P280Wear protective gloves, clothing and eye/face protection
- P370In case of fire
- P422
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2813 4.3 / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 14/15-20/21/22 |
| Safety statements (S) | 36 |
| Supplemental hazards | Reacts violently with water. |
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 Potassium nitrosodisulfonate used for?
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Potassium nitrosodisulfonate (CAS: 14293-70-0) is primarily used as a reagent for the oxidation of phenols and anilines to quinones in chemical synthesis.
What is the CAS number and formula for Potassium nitrosodisulfonate?
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The CAS number for Potassium nitrosodisulfonate is 14293-70-0, and its linear formula is (KSO3)2NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium nitrosodisulfonate primarily for research and chemical synthesis purposes. Please refer to the product specifications for available grades and purity levels. We do not represent this product as USP, BP, or EP grade unless explicitly stated.
How should Potassium nitrosodisulfonate be handled safely?
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Potassium nitrosodisulfonate reacts violently with water (H2O) and is a fire hazard, posing risks if involved in a fire. It is harmful if swallowed, inhaled, or in contact with skin. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (type N95 or equivalent), in a well-ventilated area, and avoid contact with water. Store at 2-8°C.
Is Potassium nitrosodisulfonate supplied internationally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Potassium nitrosodisulfonate, serving customers worldwide.
How can I request a quote or sample?
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To request a quote or a sample of Potassium nitrosodisulfonate, please contact our sales department through the website or via email, providing your contact details and specific requirements.
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