4-Aminophenol hydrochloride
4-Aminophenol hydrochloride (CAS: 51-78-5; Formula: H₂NC₆H₄OH · HCl) is a chemical compound with a molecular weight of 145.59 g/mol. This substance, also known as 4-hydroxyaniline hydrochloride, is supplied by Tech Serve Solutions in a grade suitable for photographic purposes. It finds utility in various research applications, including studies related to cell biology, chemical synthesis, and as an organic building block.
- IUPAC
- 4-Hydroxyaniline hydrochloride
- Synonyms
- 4-Hydroxyaniline hydrochloride

Cell Biology Research
4-Aminophenol hydrochloride serves as a valuable reagent in cell biology studies. Its properties allow for investigations into cellular mechanisms and responses.
Chemical Synthesis
As an organic building block, this compound is utilised in chemical synthesis. It can be employed in the development of new molecular structures and reaction pathways.
Bioactive Small Molecule Studies
Researchers use 4-Aminophenol hydrochloride to explore the characteristics and effects of bioactive small molecules. This aids in understanding biological interactions at a molecular level.
Phenol Derivative Applications
This compound, belonging to the phenol class, is applicable in research focusing on oxygen-containing organic compounds. It can be used in the synthesis and analysis of related chemical entities.
| Molecular weight | 145.59 |
|---|---|
| Linear formula | H2NC6H4OH · HCl |
| Assay | ≥99.0% (AT) |
| Grade | for photographic purposes |
| Application | 4-Aminophenol hydrochloride can be used to study cell biology, bioactive small molecules, chemical synthesis, organic building blocks, oxygen compounds and phenols. 4-Aminophenol hydrochloride has been used to study ferrihemoglobin and kidney lesions in rats. |
| Melting point | 300-305 °C (dec.)(lit.)300-305 °C (dec.) |

Hazard statements
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38-43 |
| Safety statements (S) | 28-36 |
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-Aminophenol hydrochloride used for?
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4-Aminophenol hydrochloride is used in research applications such as cell biology, chemical synthesis, and the study of bioactive small molecules. It has also been used in studies involving ferrihemoglobin and kidney lesions in rats.
What is the CAS number and formula for 4-Aminophenol hydrochloride?
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The CAS number for 4-Aminophenol hydrochloride is 51-78-5, and its chemical formula is H₂NC₆H₄OH · HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Aminophenol hydrochloride with an assay of ≥99.0% (AT) and a grade suitable for photographic purposes. We do not represent this product as USP, BP, or EP grade.
How should 4-Aminophenol hydrochloride be handled safely?
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4-Aminophenol hydrochloride may cause skin irritation (H315), allergic skin reaction (H317), serious eye irritation (H319), and respiratory irritation (H335). When handling, use appropriate personal protective equipment including a dust mask (type N95 US), eyeshields, face shields, and gloves. Ensure adequate ventilation.
Does TSS export 4-Aminophenol hydrochloride?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 4-Aminophenol hydrochloride.
How can I request a sample or quote for 4-Aminophenol hydrochloride?
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To request a sample or a quote for 4-Aminophenol hydrochloride, please contact our sales team via the website or by phone.
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