4-Methoxy-o-phenylenediamine dihydrochloride
4-Methoxy-o-phenylenediamine dihydrochloride (CAS: 59548-39-9; Formula: CH3OC6H3(NH2)2·2HCl; Molar Mass: 211.09 g/mol) is a valuable organic building block. This compound, primarily utilised in chemical synthesis, serves as a key intermediate for creating more complex molecules. Its diamine structure with a methoxy substituent offers versatile reactivity for various research and development applications in organic chemistry.
- IUPAC
- 3,4-Diaminoanisole dihydrochloride
- Synonyms
- 3,4-Diaminoanisole dihydrochloride

Organic Synthesis Intermediate
4-Methoxy-o-phenylenediamine dihydrochloride is employed as a precursor in the synthesis of diverse organic compounds. Its functional groups allow for participation in various coupling and condensation reactions, facilitating the construction of complex molecular architectures.
Research and Development
This chemical serves as a building block in R&D laboratories for exploring novel synthetic routes and developing new materials. Its specific structure makes it suitable for investigating structure-activity relationships in medicinal chemistry and materials science.
Heterocyclic Chemistry
The compound's diamine functionality is useful for the construction of heterocyclic ring systems. These structures are frequently found in pharmaceuticals and functional materials, highlighting its role in these fields.
| Molecular weight | 211.09 |
|---|---|
| Linear formula | CH3OC6H3(NH2)2·2HCl |
| Assay | 98% |
| Storage temperature | 2-8°C |
| Melting point | 206-209 °C (dec.)(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 4-Methoxy-o-phenylenediamine dihydrochloride used for?
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4-Methoxy-o-phenylenediamine dihydrochloride is primarily used as an intermediate in organic synthesis and in research and development for creating new molecules and materials. It is particularly useful in heterocyclic chemistry.
What is the CAS number and chemical formula?
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The CAS number for 4-Methoxy-o-phenylenediamine dihydrochloride is 59548-39-9 and its chemical formula is CH3OC6H3(NH2)2·2HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Methoxy-o-phenylenediamine dihydrochloride with an assay of 98%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 4-Methoxy-o-phenylenediamine dihydrochloride be handled?
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Handle 4-Methoxy-o-phenylenediamine dihydrochloride with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. It is classified as a Warning substance with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation).
How is this product packed, shipped, and exported?
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Tech Serve Solutions carefully packs and exports fine chemicals like 4-Methoxy-o-phenylenediamine dihydrochloride, adhering to all relevant shipping regulations for international delivery.
How can I request a sample or quote for 4-Methoxy-o-phenylenediamine dihydrochloride?
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To request a sample or obtain a quote for 4-Methoxy-o-phenylenediamine dihydrochloride, please contact our sales team through the website or by phone.
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