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Quick answer: Coal tar carries the heavier risk profile. 4-Amino-3-nitrophenol is restricted in the EU and allowed in the US; Coal tar is banned in the EU and allowed in the US.
| Property | 4-Amino-3-nitrophenol | Coal tar |
|---|---|---|
| EU status | Restricted | Banned |
| US status | Allowed | Allowed |
| Risk level | medium | high |
| Banned in | — | European Union |
| Restricted in | European Union | — |
| Category | cmr | cmr |
| Where it hides | hair dye | anti-dandruff shampoo, hair dye, psoriasis products |
4-Amino-3-nitrophenol (4-Amino-3-Nitrophenol) is a hair-dye colorant.
Coal tar is a complex byproduct of coal processing used in dandruff and psoriasis products and dyes.
4-Amino-3-nitrophenol: Concentration-restricted in the EU.
Coal tar: A known human carcinogen. Restricted in the EU (banned in hair dye); permitted in US OTC products.
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