ChemicalBook > CAS DataBase List > 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one

4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one

Product Name
4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one
CAS No.
34523-34-7
Chemical Name
4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one
Synonyms
NSC 77904;5-dien-1-one;ParacetaMol IMpurity G;Acetaminophen Impurity 8;Acetaminophen Impurity G;Paracetamol EP Impurity G;BVZSQTRWIYKUSF-UHFFFAOYSA-N;p-Hydroxyacetophenone OxiMe;Acetaminophen EP Impurity G;Paracetamol Impurity G （EP）
CBNumber
CB31457758
Molecular Formula
C8H9NO2
Formula Weight
151.16
MOL File
34523-34-7.mol
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4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one Property

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)
pka
9.62±0.30(Predicted)
form 
powder to crystal
color 
White to Orange to Green
EPA Substance Registry System
Ethanone, 1-(4-hydroxyphenyl)-, oxime (34523-34-7)
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Safety

HS Code 
2928.00.2500
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P330Rinse mouth.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical
Product number
H1512
Product name
4'-Hydroxyacetophenone Oxime
Purity
>98.0%(GC)
Packaging
1g
Price
$63
Updated
2025/07/31
TCI Chemical
Product number
H1512
Product name
4'-Hydroxyacetophenone Oxime
Purity
>98.0%(GC)
Packaging
5g
Price
$187
Updated
2025/07/31
TRC
Product number
H741050
Product name
4'-Hydroxyacetophenone Oxime
Packaging
250mg
Price
$1295
Updated
2021/12/16
AK Scientific
Product number
6535AL
Product name
4'-Hydroxyacetophenone Oxime
Packaging
1g
Price
$97
Updated
2021/12/16
Chemenu
Product number
CM295357
Product name
1-(4-Hydroxyphenyl)ethanoneoxime
Purity
95%
Packaging
10g
Price
$295
Updated
2021/12/16
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4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one Chemical Properties,Usage,Production

Chemical Properties

White to Off-White Solid

Uses

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).

Uses

Paracetamol (Acetaminophen -A161220) impurity.

4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one Preparation Products And Raw materials

Raw materials

Preparation Products

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4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one Suppliers

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View Lastest Price from 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one manufacturers

Career Henan Chemical Co
Product
4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one 34523-34-7
Price
US $1.00/g
Min. Order
1g
Purity
99%
Supply Ability
1kg
Release date
2019-12-30

34523-34-7, 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-oneRelated Search:

2'-Hydroxyacetophenone Acetaminophen 2-Acetamidophenol Acetanilide 3-CHLORO-4-HYDROXYACETANILIDE ACETAMINOPHEN IMPURITY B 4'-CHLOROACETANILIDE 4,4'-Iminodiphenol hydrochloride 4'-Hydroxyacetophenone 4-Acetoxyacetanilide N,N'-(OXYDI-4,1-PHENYLENE)BISACETAMIDE 1,4-Benzoquinoneimine 3-HYDROXYACETAMINOPHEN 4-ACETAMIDOPHENYL B-D-GLUCURONIDE-D3 ACETAMINOPHEN-D3 Paracetamol (Acetaminophen) EP Impurity L ACETAMINOPHEN GLUCURONIDE SODIUM SALT 3-HYDROXYACETAMINOPHEN-D3

  • 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one
  • Acetaminophen Impurity 8
  • 1-(4-Hydroxyphenyl)-1-ethanone OxiMe
  • 1-(4-Hydroxyphenyl)ethanone OxiMe
  • NSC 77904
  • p-Hydroxyacetophenone OxiMe
  • Ethanone, 1-(4-hydroxyphenyl)-, oxiMe
  • ParacetaMol IMpurity G
  • Paracetamol EP Impurity G
  • BVZSQTRWIYKUSF-UHFFFAOYSA-N
  • (E)-1-(4-hydroxyphenyl)ethanone oxime
  • Paracetamol Impurity 7(Paracetamol EP Impurity G)
  • Acetaminophen Impurity G
  • Paracetamol EP Impurity G(4'-Hydroxyacetophenone Oxime)
  • 4'-HydroxyacetophenoneOxime&gt
  • Paracetamol(Acetaminophen) EP Impurity G
  • Acetaminophen impurities1461
  • Acetaminophen EP Impurity G
  • Paracetamol Impurity G （EP）
  • [1-(4-hydroxyphenyl)ethylidene]hydroxylamine
  • 4'-Hydroxyacetophenone Oxime
  • 4′-Hydroxyacetophenone Oxime, CAS 34523-34-7
  • 4-[1-(hydroxyamino)ethylidene]cyclohexa-2
  • 5-dien-1-one
  • 34523-34-7
  • Aromatic Hydrazides, Hydrazines, Hydrazones and Oximes
  • Aromatics
  • Impurities
  • Intermediates & Fine Chemicals
  • Pharmaceuticals