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Nitriles, nitro and azo compounds

Isonitrosoacetophenone

Also known as 2-Isonitrosoacetophenone, Benzoylformaldoxime, Phenylglyoxal aldoxime

CAS 532-54-7Formula C8H7NO2Molar mass 149.15 g/molEC 208-539-5
GHS signal word: Warning. Pictograms: Harmful or irritant 2 suppliers listed
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Isonitrosoacetophenone chemical structure, C8H7NO2, CAS 532-54-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
532-54-7
Formula
C8H7NO2
Molar mass
149.15 g/mol
EC number
208-539-5
HS code
292800
Category
Nitriles, nitro and azo compounds

What is Isonitrosoacetophenone?

Plain description, key identifiers and synonyms

Isonitrosoacetophenone is a chemical substance with the molecular formula C8H7NO2 and a molar mass of 149.15 g/mol. Its CAS registry number is 532-54-7. The IUPAC name is (2E)-2-hydroxyimino-1-phenylethanone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2E)-2-hydroxyimino-1-phenylethanone
CAS number
532-54-7 CAS number cross-checkedOther or deprecated CAS: 22668-53-7, 83922-86-5
EC numbers
208-539-5, 281-315-2
Molecular formula
C8H7NO2
UNII
FFE56234VN
MDL number
MFCD00002122
InChIKey
MLNKXLRYCLKJSS-RMKNXTFCSA-N
InChI
InChI=1S/C8H7NO2/c10-8(6-9-11)7-4-2-1-3-5-7/h1-6,11H/b9-6+
Canonical SMILES
O=C(C=NO)c1ccccc1
Isomeric SMILES
C1=CC=C(C=C1)C(=O)/C=N/O

Synonyms

  • 2-Isonitrosoacetophenone
  • Benzoylformaldoxime
  • Phenylglyoxal aldoxime
  • Phenylglyoxal 2-oxime
  • Phenylglyoxal monoxime
  • Glyoxal, phenyl-, 2-oxime
  • Benzeneacetaldehyde, alpha-oxo-, aldoxime
  • INAP
  • 2-oxo-2-phenylacetaldehyde oxime
  • INAF
  • Phenylglyoxaldoxime
  • 2-Hydroxyiminoacetophenone
  • Acetophenone, 2-hydroxyimino-
  • 2-(Hydroxyimino)acetophenone
  • Glyoxal, 1-phenyl-, 2-oxime
  • (2E)-2-(N-hydroxyimino)-1-phenylethan-1-one
  • (2E)-2-hydroxyimino-1-phenylethanone
  • 2-(hydroxyimino)-1-phenylethan-1-one
  • Glyoxal, 2-oxime
  • (E)-2-oxo-2-phenylacetaldehyde oxime
  • Benzeneacetaldehyde, aldoxime
  • mu-(Hydroxyimino)acetophenone
  • Oximinoacetophenone
  • Isonitrosoacetophenon
  • ?-Isonitrosoacetophenone
Show all 35 synonyms
  • ?-(Hydroxyimino)acetophenone
  • Benzoyl formaldehyde-1-oxime
  • 4-07-00-02132 (Beilstein Handbook Reference)
  • 1-Oxo(phenyl)ethanal oxime #
  • 2-Isonitrosoacetophenone, 97%
  • Glyoxal, phenyl-, aldoxime
  • (E)-2-oxo-2-phenylacetaldehydeoxime
  • alpha-(hydroximino)acetophenone
  • (1E)-2-oxo-2-phenyl-acetaldehyde oxime
  • alpha-(hydroxyimino)acetophenone

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
149.15 g/molcalc.
Exact mass
149.0477 Dacalc.
LogP (octanol/water)
1.33calc.
Topological polar surface area
49.66 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
11calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H332Harmful if inhaled.
Precautionary statements (13)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Isonitrosoacetophenone suppliers

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All 2 suppliers

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Where suppliers are based

2 suppliers in 2 countries

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Isonitrosoacetophenone price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Isonitrosoacetophenone is traded under.

HS 2928.00Indicative HS code

Organic derivatives of hydrazine or of hydroxylamine

World exports in 2024
$1.38B
−9.0% vs 2023, imports $1.52B
2019 to 2024
Top exporters
  1. Switzerland * partner reported44.0%
  2. China18.4%
  3. Italy9.4%
Top importers
  1. Brazil21.8%
  2. United States12.8%
  3. Italy10.8%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Isonitrosoacetophenone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Isonitrosoacetophenone, based on the data on this page

What is Isonitrosoacetophenone?

Isonitrosoacetophenone is a chemical substance with the molecular formula C8H7NO2 and a molar mass of 149.15 g/mol. Its CAS registry number is 532-54-7. The IUPAC name is (2E)-2-hydroxyimino-1-phenylethanone.

What is the CAS number of Isonitrosoacetophenone?

The CAS registry number of Isonitrosoacetophenone is 532-54-7. Other or deprecated CAS numbers: 22668-53-7, 83922-86-5.

What is the molecular formula and weight of Isonitrosoacetophenone?

The molecular formula of Isonitrosoacetophenone is C8H7NO2 and its molar mass is 149.15 g/mol.

What is Isonitrosoacetophenone used for?

Known uses and roles of Isonitrosoacetophenone include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Isonitrosoacetophenone hazardous?

Isonitrosoacetophenone carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful in contact with skin, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Isonitrosoacetophenone?

Isonitrosoacetophenone is usually classified under HS code 292800 (Organic derivatives of hydrazine or of hydroxylamine). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Isonitrosoacetophenone?

CompoundList lists 2 suppliers of Isonitrosoacetophenone in China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Isonitrosoacetophenone?

Suppliers quote Isonitrosoacetophenone on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Isonitrosoacetophenone

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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