4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one
- CAS NO.：34523-34-7
- Empirical Formula: C8H9NO2
- Molecular Weight: 151.16
- MDL number: MFCD00481697
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 00:57:50
![4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one Structural](https://img.chemicalbook.in/CAS/GIF/34523-34-7.gif)
What is 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one?
Chemical properties
White to Off-White Solid
The Uses of 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one
Paracetamol (Acetaminophen -A161220) impurity.
The Uses of 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one
4’-Hydroxyacetophenone Oxime is an impurity of Acetaminophen (A161220), an analgesic and antipyretic agent used as a pain reliever to treat headache, muscle aches, and arthritis (1,2,3).
Properties of 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one
| Melting point: | 142-144°C |
| Boiling point: | 318.1±25.0 °C(Predicted) |
| Density | 1.15±0.1 g/cm3(Predicted) |
| storage temp. | Refrigerator |
| solubility | Ethyl Acetate (Slightly), Methanol (Slightly) |
| form | powder to crystal |
| pka | 9.62±0.30(Predicted) |
| color | White to Orange to Green |
| EPA Substance Registry System | Ethanone, 1-(4-hydroxyphenyl)-, oxime (34523-34-7) |
Safety information for 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one
Computed Descriptors for 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one
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