ChemicalBook > CAS DataBase List > 4-Pyridinealdoxime

4-Pyridinealdoxime

Product Name
4-Pyridinealdoxime
CAS No.
696-54-8
Chemical Name
4-Pyridinealdoxime
Synonyms
4-PYRIDINEALDOXIME;ISONICOTINALDOXIME;4-PYRIDINCALDOXIME;4-Pyridinialdoxime;PYRIDINE-4-ALDOXIME;4-formyl-pyridinoxime;4-Pyridinealdoxime,98%;Pyridine-4-aldoxime>PYRIDINE-4-CARBALDOXIME;Pyridine-4-aldoxime,98%
CBNumber
CB8403634
Molecular Formula
C6H6N2O
Formula Weight
122.12
MOL File
696-54-8.mol
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4-Pyridinealdoxime Property

Melting point:
131-133 °C
Boiling point:
227.52°C (rough estimate)
Density 
1.2236 (rough estimate)
bulk density
610kg/m3
vapor pressure 
<0.01 hPa (50 °C)
refractive index 
1.5350 (estimate)
Flash point:
110 °C
storage temp. 
Store below +30°C.
solubility 
10g/l
pka
pK1:4.73(+1);pK2:10.03(0) (25°C)
form 
Solid
color 
White to Off-White
PH
6.3 (10g/l, H2O, 20℃)
Water Solubility 
10 g/L (20 ºC)
BRN 
2079
CAS DataBase Reference
696-54-8(CAS DataBase Reference)
NIST Chemistry Reference
4-Pyridinecarboxaldehyde, oxime(696-54-8)
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Safety

Hazard Codes 
Xn
Risk Statements 
20/22-36/37/38-20/21/22
Safety Statements 
26-36-37/39
WGK Germany 
3
RTECS 
NR9410000
HS Code 
29333999
Toxicity
LD50 orally in Rabbit: 655 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.20714
Product name
4-Pyridinecarbaldehyde oxime
Purity
for synthesis
Packaging
50g
Price
$237
Updated
2025/07/31
TCI Chemical
Product number
P0673
Product name
Pyridine-4-aldoxime
Purity
>98.0%(T)
Packaging
10g
Price
$88
Updated
2025/07/31
TCI Chemical
Product number
P0673
Product name
Pyridine-4-aldoxime
Purity
>98.0%(T)
Packaging
25g
Price
$175
Updated
2025/07/31
Usbiological
Product number
020245
Product name
4-Pyridinealdoxime
Packaging
1g
Price
$403
Updated
2021/12/16
TRC
Product number
P991300
Product name
4-Pyridinealdoxime
Packaging
25g
Price
$990
Updated
2021/12/16
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4-Pyridinealdoxime Chemical Properties,Usage,Production

Chemical Properties

white very fine crystalline powder

Uses

It is employed as an intermediate for bis(hydroxyiminomethylpyridinium)butenes and as reactivators of chlorpyrifos-inhibited acetylcholinesterase. It is also used in the chromatographic separation and NMR characterization of the isomers of 1,1?-Methylenebis{4-[(hydroxyimino)methyl]pyridinium) dichloride.

Uses

An intermediate for bis(hydroxyiminomethylpyridinium)butenes as reactivators of chlorpyrifos-inhibited acetylcholinesterase.

Purification Methods

Crystallise the oxime from water. [Beilstein E-isomer 21 III/IV 3533, 21/7 V 355.]

4-Pyridinealdoxime Preparation Products And Raw materials

Raw materials

4-Pyridinecarboxaldehyde 4-Methylpyridine Hydroxylamine sulfate

Preparation Products

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View Lastest Price from 4-Pyridinealdoxime manufacturers

Baoji Guokang Healthchem co.,ltd
Product
4-Pyridinealdoxime 696-54-8
Price
US $412.70/Kg/Bag
Min. Order
50g
Purity
99%
Supply Ability
50kg
Release date
2021-06-07
Career Henan Chemical Co
Product
4-Pyridinealdoxime 696-54-8
Price
US $1.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
1ton
Release date
2018-08-13

696-54-8, 4-PyridinealdoximeRelated Search:

OBIDOXIME CHLORIDE N'-HYDROXYPYRIDINE-4-CARBOXIMIDAMIDE 4-Pyridinealdoxime POBN 1,1'-TRIMETHYLENE-BIS(4-FORMYLPYRIDINIUM BROMIDE) DIOXIME 2-PYRIDINEALDOXIME,SYM-2-PYRIDINEALDOXIME,syn-2-Pyridinealdoxime Pralidoxime Chloride 2-PYRIDINEALDOXIME METHIODIDE SYM-2-PYRIDINEALDOXIME,SYN-2-PYRIDINEALDOXIME, 99+%,2-PYRIDINEALDOXIME 3-PYRIDINEALDOXIME,3-PYRIDINEALDOXIME 98% FORMOXIME 4-Pyridinecarboxaldehyde Acetaldoxime 4-[CYANO(HYDROXYAMINO)METHYL]-1-METHYLPYRIDINIUM IODIDE AKOS B006530 2-PYRIDINEALDOXIME O-ISOAMYL ETHER 2-Pyridinealdoxime 1-methomethanesulfonate,2-PYRIDINEALDOXIME METHYL METHANESULFONATE 2-pyridinealdoxime methylsulfate

  • Pyridine, 4-formyl-, oxime
  • ISONICOTINALDEHYDE OXIME
  • ISONICOTINALDOXIME
  • 4-PYRIDINECARBOXALDOXIME
  • 4-PYRIDINECARBALDEHYDE OXIME
  • 4-PYRIDINEALDOXIME
  • PYRIDINE-4-CARBALDOXIME
  • PYRIDINE-4-ALDOXIME
  • PYRIDINE-4-CARBOXALDOXIME
  • Pyridine-4-aldoxime,98%
  • 4-PYRIDINECARBOXALDOXIME 99+%
  • 4-PYRIDINCALDOXIME
  • 4-(Nitrosomethylidene)-1H-pyridine
  • N-(4-Pyridylmethylene)hydroxylamine
  • Pyridine-4-carbaldehyde oxime
  • 4-Pyridinealdoxime,98%
  • 4-(hydroxyiminomethyl)pyridin
  • (E)-isonicotinaldehyde oxiMe
  • 4-(Hydroxyiminomethyl)pyridine
  • 4-formyl-pyridinoxime
  • 4-pyridinecarboxaldehyde,oxime
  • 4-Pyridinecarbaldehyde oxime for synthesis
  • Pyridine-4-carboxaldoxime,97%
  • Pyridine-4-aldoxime&gt
  • 4-PYRIDINECARBALDEHYDE OXIME FOR SYNTHES
  • Pyridine-4-aldoxime,4-Pyridinealdoxime
  • 4-Pyridinialdoxime
  • 696-54-8
  • Pyridines
  • Heterocyclic Building Blocks
  • Building Blocks
  • C6
  • Pyridines, Pyrimidines, Purines and Pteredines
  • Heterocyclic Building Blocks
  • Pyridines
  • Aromatics
  • Bases & Related Reagents
  • Heterocycles
  • Nucleotides
  • Building Blocks
  • Chemical Synthesis
  • Heterocyclic Building Blocks
  • C6