2,5-Diaminohydroquinone dihydrochloride
2,5-Diaminohydroquinone dihydrochloride (CAS 24171-03-7) is a valuable organic building block with the molecular formula C6H8N2O2 · 2HCl and a molecular weight of 213.06. This compound serves as a key intermediate in various chemical syntheses, particularly in the development of novel organic molecules and materials. Its reactive functionalities make it useful in research and development settings for creating complex chemical structures.
- Synonyms
- C6H8N2O2 · 2HCl

Organic Synthesis Intermediate
Utilised as a precursor in multi-step organic syntheses for creating complex molecules. Its diamine and hydroquinone functionalities offer versatile reaction sites for functionalisation.
Materials Science Research
Investigated for potential applications in the development of new polymers and functional materials. The aromatic structure with amino and hydroxyl groups can be incorporated into polymer backbones.
Dye and Pigment Precursor
May serve as a building block in the synthesis of certain dyes and pigments due to its aromatic amine structure. Further derivatisation can lead to chromophoric systems.
| Molecular weight | 213.06 |
|---|---|
| Empirical formula | C6H8N2O2 · 2HCl |
| Assay | ≥90% (AT) |

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 2,5-Diaminohydroquinone dihydrochloride used for?
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2,5-Diaminohydroquinone dihydrochloride is primarily used as an intermediate in organic synthesis and for research in materials science, potentially as a precursor for dyes and pigments.
What are the CAS number and formula for 2,5-Diaminohydroquinone dihydrochloride?
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The CAS number is 24171-03-7 and the empirical formula (hill notation) is C6H8N2O2 · 2HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,5-Diaminohydroquinone dihydrochloride with an assay of ≥90% (AT). We do not represent this product as meeting USP, BP, EP, or other pharmacopoeia standards.
What are the safety and handling recommendations for this compound?
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This compound is a warning substance, identified with GHS07. It can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area.
How is 2,5-Diaminohydroquinone dihydrochloride packed and shipped?
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Tech Serve Solutions packs and ships fine chemicals, pharmaceutical intermediates, and laboratory reagents globally, adhering to all necessary transport regulations.
How can I request a quote or sample?
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To request a quote or sample of 2,5-Diaminohydroquinone dihydrochloride, please contact our sales team through the website or via direct inquiry.
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