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Nitriles, nitro and azo compounds

Aldoxime

Also known as Acetaldehyde oxime, Acetaldehyde, oxime, USAF AM-5

CAS 107-29-9Formula C2H5NOMolar mass 59.07 g/molEC 203-479-6
GHS signal word: Warning. Pictograms: Flammable, Harmful or irritant, Serious health hazard 7 suppliers listed
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Aldoxime chemical structure, C2H5NO, CAS 107-29-9
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Needles
Melting point
45 °C
Boiling point
115 °C
Density
0.9656 at 20 °C/4 °C
Solubility
Very soluble in water
HS code
292800
Category
Nitriles, nitro and azo compounds
UN number
UN 2332
Illustrative photo, closed jumbo bulk bags in a warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Aldoxime?

Plain description, key identifiers and synonyms

Acetaldehyde oxime appears as a colorless liquid with a pungent odor. Has two crystalline modifications, one melting at 12 °C and the other at 46.5 °C.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-ethylidenehydroxylamine
CAS number
107-29-9 CAS number cross-checked
EC number
203-479-6
Molecular formula
C2H5NO
InChIKey
FZENGILVLUJGJX-UHFFFAOYSA-N
InChI
InChI=1S/C2H5NO/c1-2-3-4/h2,4H,1H3
SMILES (canonical and isomeric)
CC=NO

Synonyms

  • Acetaldehyde oxime
  • Acetaldehyde, oxime
  • USAF AM-5
  • Ethylidenehydroxylamine
  • Hydroiminoethane
  • Acetaldoxime
  • N-ethylidenehydroxylamine
  • Acetaldoxime,syn & anti
  • (1E)-Ethanal oxime #
  • acetoaldoxime
  • methylnitrone
  • UN 2332
  • (EZ)-acetaldehyde oxime
  • (E)-N-ethylidenehydroxylamine

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

Appearance
Needlesexp.
Melting point
45 °Cexp.
Boiling point
115 °Cexp.
Density
0.9656 at 20 °C/4 °Cexp.
Solubility
Very soluble in waterexp.
Vapour pressure
9.9 mm Hg at 25 °C /Extrapolated to super-cooled liquid/, 5.0 mm Hg at 25 °C /Extrapolated to solid/exp.

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
59.07 g/molcalc.
Exact mass
59.0371 Dacalc.
LogP (octanol/water)
0.47calc.
Topological polar surface area
32.59 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
4calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H226Flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (25)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P330Rinse mouth.
  • P337 + P317If eye irritation persists: Get medical help.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2332
Transport hazard class
3
Packing group
III

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

Aldoxime suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 7 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

7 suppliers in 4 countries

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Aldoxime price

Indicative price range per kg from live supplier offers

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Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

It is the intermediate of synthetizing pesticides methom, thiodicarb and alanycarb, it can also be used in organic synthesis.

Industrial uses: Solvent.

Consumer uses: Solvent.

Roles

  • eukaryotic metabolite
  • metabolite
  • plant metabolite

How it is made

Donaruma, United States of America patent 2763686 (1956 to du Pont).

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active 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 Aldoxime 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 Aldoxime is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Aldoxime?

Acetaldehyde oxime appears as a colorless liquid with a pungent odor. Has two crystalline modifications, one melting at 12 °C and the other at 46.5 °C.

What is the CAS number of Aldoxime?

The CAS registry number of Aldoxime is 107-29-9.

What is the molecular formula and weight of Aldoxime?

The molecular formula of Aldoxime is C2H5NO and its molar mass is 59.07 g/mol.

What is Aldoxime used for?

It is the intermediate of synthetizing pesticides methom, thiodicarb and alanycarb, it can also be used in organic synthesis. Industrial uses: Solvent. Consumer uses: Solvent.

Is Aldoxime hazardous?

Aldoxime carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, harmful if swallowed, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Aldoxime?

Aldoxime 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 Aldoxime?

CompoundList lists 7 suppliers of Aldoxime in United States, China, Hong Kong and South Korea. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Aldoxime?

Suppliers quote Aldoxime 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 Aldoxime

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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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