Molekula
4-Aminophenol
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
4-Aminophenol is an aromatic amine with a hydroxyl group, widely used as a precursor in pharmaceuticals (e.g., paracetamol), dyes, and photographic developers. It appears as a white to pale brown crystalline solid. Catalogue details: CAS 123-30-8, molecular formula H₂NC₆H₄OH, molecular weight 109.13 g/mol, and requires ambient storage. The product carries a **Warning** signal word under GHS classification. Molekula supplies 4-Aminophenol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £31.00 per pack ex VAT · £37.20 inc. VAT
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500 g — £38.90 per pack ex VAT · £46.68 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to light brown crystalline powder |
| Melting Point | 183 - 190.2°C |
| Loss on Drying | ≤1.0% |
| Purity | ≥98.5% |
| Transmittance | ≥95.0% |
| Ferrous Content | ≤50ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 189 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless crystals |
| Melting Point | 187.5 °C |
| Boiling Point | 284 °C at 760 mmHg, decomposes; 167 °C at 8 mmHg; 150 °C at 3 mmHg; 130.2 °C at 0.3 mmHg |
| Water Solubility | 1.6 g/L at 20 °C |
| Solubility (other solvents) | Very soluble in ethanol; insoluble in benzene, chloroform; slightly soluble in trifluoroacetic acid; soluble in alkalies |
| Vapour Pressure | 4.0 × 10⁻⁵ mmHg at 25 °C |
| log P (octanol/water) | 0.04 |
Source: PubChem CID 403 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 16650521 |
| CAS Number | 123-30-8 |
| IUPAC Name | 4-aminophenol |
| EC Number | 204-616-2 |
| Molecular Formula | H2NC6H4OH |
| Molecular Weight | 109.13 |
| Exact Mass | 109.0528 |
| SMILES | C1=CC(=CC=C1N)O |
| InChIKey | PLIKAWJENQZMHA-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H7NO/c7-5-1-3-6(8)4-2-5/h1-4,8H,7H2 |
| PubChem CID | 403 |
| UN Number | UN2512 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| Tariff Code | 29222900 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H332 Harmful if inhaled
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H340 May cause genetic defects
- H360FD May damage fertility. May damage the unborn child.
- H373 May cause damage to organs through prolonged or repeated exposure
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P263 Avoid contact during pregnancy/while nursing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 4-hydroxyaniline
- Activol
- Azol
- Certinal
- Citol
- p-aminophenol
- p-hydroxyaniline
- Paranol
- Phenol, 4-amino-
- Rodinal
Frequently asked questions
What is 4-Aminophenol commonly used for?
4-Aminophenol is primarily used as an intermediate in the synthesis of pharmaceuticals (e.g., paracetamol/acetaminophen), dyes, and photographic developers.
What is the chemical formula and molecular weight of 4-Aminophenol?
The chemical formula is **H₂NC₆H₄OH**, and the molecular weight is **109.13 g/mol**.
How should 4-Aminophenol be stored?
Store in a tightly sealed container at **ambient temperature**, away from light, moisture, and incompatible substances.
What grades or purities of 4-Aminophenol does Molekula supply?
Molekula supplies **pharmaceutical-grade** and **industrial-grade** 4-Aminophenol, with purity levels specified per order.
Can Molekula supply 4-Aminophenol in bulk quantities?
Yes, Molekula offers **bulk packaging** (e.g., 25 kg drums, 1 MT containers) for large-scale industrial or pharmaceutical applications.
What documentation comes with an order of 4-Aminophenol?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS/SDS)**, and **batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.