N4-Ethyl-N4-(2-methylsulfonamidoethyl)-2-methyl-1,4-phenylenediamine sesquisulfate salt monohydrate
N4-Ethyl-N4-(2-methylsulfonamidoethyl)-2-methyl-1,4-phenylenediamine sesquisulfate salt monohydrate (CAS 25646-71-3) is a specialized organic compound with a molecular weight of 436.51 g/mol. Its chemical structure incorporates a phenylenediamine core, an ethyl group, and a methylsulfonamidoethyl substituent. This compound is noted for its suitability in photographic applications. Tech Serve Solutions supplies this chemical for various research and synthesis needs.
- Synonyms
- C12H21N3O2S · 3/2H2SO4 · H2O

Photographic Applications
This compound is specifically indicated for use in photographic processes. Its chemical properties lend themselves to applications within the development or stabilization of photographic materials.
Organic Synthesis
As an organic building block, this phenylenediamine derivative can be utilised in the synthesis of more complex molecules. It offers reactive sites for further chemical modifications.
Research and Development
The unique sulfonamide and diamine functionalities make this compound a valuable reagent for exploratory research in chemistry. It can be used to investigate novel reaction pathways or material properties.
| Molecular weight | 436.51 |
|---|---|
| Linear formula | C12H21N3O2S · 3/2H2SO4 · H2O |
| Suitability | suitable for photographic applications |
| Transport (UN / ADR) | UN 2811 6.1/PG 3 |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-36/37/38-43 |
| Safety statements (S) | 26-36/37-45 |
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 N4-Ethyl-N4-(2-methylsulfonamidoethyl)-2-methyl-1,4-phenylenediamine sesquisulfate salt monohydrate used for?
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This compound is primarily noted for its suitability in photographic applications. It also serves as an organic building block in chemical synthesis and research and development.
What is the CAS number and chemical formula for this compound?
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The CAS number is 25646-71-3. The linear formula is C<sub>12</sub>H<sub>21</sub>N<sub>3</sub>O<sub>2</sub>S · 3/2H<sub>2</sub>SO<sub>4</sub> · H<sub>2</sub>O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and synthesis purposes. The exact assay and purity depend on the specific batch and are available upon request. We do not represent this product as USP, BP, or EP grade.
How should N4-Ethyl-N4-(2-methylsulfonamidoethyl)-2-methyl-1,4-phenylenediamine sesquisulfate salt monohydrate be handled?
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This compound is classified as Toxic (T) in Europe. It may cause long-term adverse effects in the aquatic environment and is harmful if swallowed, inhaled, or in contact with skin. Appropriate personal protective equipment, including gloves, eye protection, and respiratory protection, should be used. Handle in a well-ventilated area. Refer to the Safety Data Sheet (SDS) for comprehensive handling information.
Is this compound regulated or scheduled?
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According to the provided data, this compound is classified under UN 2811, Hazard Class 6.1, Packing Group III, indicating it is a toxic substance for transport. No specific controlled substance status is indicated.
How is this chemical packed and exported?
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Tech Serve Solutions handles the packing and export of chemicals in compliance with international regulations. For specific packaging details and shipping options, please contact our sales team.
How can I request a sample or quote?
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To request a sample or a quotation for N4-Ethyl-N4-(2-methylsulfonamidoethyl)-2-methyl-1,4-phenylenediamine sesquisulfate salt monohydrate, please visit the product page on our website or contact our sales department directly.
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