2-Isonitrosoacetophenone
2-Isonitrosoacetophenone (CAS: 532-54-7) is an organic compound with the linear formula C6H5COCH=NOH and a molecular weight of 149.15 g/mol. This oxime derivative serves as a valuable building block in organic synthesis and is commonly employed in the preparation of various nitrogen-containing heterocyclic compounds. Its utility extends to research laboratories and the synthesis of fine chemicals.
- IUPAC
- ω-(Hydroxyimino)acetophenone,ω-Isonitrosoacetophenone,Phenylglyoxaldoxime
- Synonyms
- ω-(Hydroxyimino)acetophenoneω-IsonitrosoacetophenonePhenylglyoxaldoxime

Organic Synthesis Intermediate
2-Isonitrosoacetophenone is utilised as a key intermediate in the synthesis of more complex organic molecules. It is particularly useful for constructing nitrogen-containing heterocycles, which are prevalent in pharmaceuticals and agrochemicals.
Building Block for Heterocyclic Chemistry
The compound's structure, featuring both a ketone and an oxime group, makes it an effective precursor for cyclization reactions. This allows for the creation of diverse heterocyclic ring systems relevant to medicinal chemistry research.
Laboratory Reagent
As a readily available organic building block, 2-Isonitrosoacetophenone is employed in academic and industrial research laboratories for method development and the exploration of novel chemical transformations.
| Molecular weight | 149.15 |
|---|---|
| Linear formula | C6H5COCH=NOH |
| Assay | 97% |
| Storage temperature | 2-8°C |
| Melting point | 126-128 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H332Harmful if inhaled
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22 |
| Safety statements (S) | 36/37 |
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-Isonitrosoacetophenone used for?
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2-Isonitrosoacetophenone is primarily used as a building block in organic synthesis, particularly for the preparation of nitrogen-containing heterocyclic compounds, and as a laboratory reagent.
What is the CAS number and formula for 2-Isonitrosoacetophenone?
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The CAS number for 2-Isonitrosoacetophenone is 532-54-7, and its linear formula is C6H5COCH=NOH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Isonitrosoacetophenone with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 2-Isonitrosoacetophenone be handled safely?
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2-Isonitrosoacetophenone is harmful if swallowed, in contact with skin, or if inhaled (H302, H312, H332). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, should be used. Handle in a well-ventilated area.
How is 2-Isonitrosoacetophenone packed and exported?
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2-Isonitrosoacetophenone is carefully packed according to international shipping regulations and exported globally by Tech Serve Solutions.
How can I request a quote or sample?
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To request a quote or a sample of 2-Isonitrosoacetophenone, please contact our sales department via the website or provide your details for a prompt response.
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