Educational content for trained professionals. Not a Safety Data Sheet, not medical advice. In an emergency, call your local poison control or emergency services immediately. Terms of use.
2-Butanone oxime
Also known as: 2-BUTANONE OXIME · methylethyl ketoxime · DTXSID1021821 · Ethyl-methylketonoxim
- CAS No.
- 96-29-7
- Formula
- C4H9NO
- Molar mass
- 87.12 g/mol
- PubChem CID
- 7292
Corrosive
Toxic
Harmful / Irritant
Health hazard
Summary
2-Butanone oxime (C4H9NO), CAS 96-29-7. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.
Background
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Hazards
Attacks skin, eyes and materials.
May be fatal even in small doses.
May cause skin, eye or respiratory irritation.
Serious long-term health effects (CMR, respiratory sensitizer).
Hazard statements
- H301: Toxic if swallowed [Danger Acute toxicity, oral]
- H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
- H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure
- H350: May cause cancer [Danger Carcinogenicity]
- H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
- H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H351: Suspected of causing cancer [Warning Carcinogenicity]
- H302: Harmful if swallowed [Warning Acute toxicity, oral]
- H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
- H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
- H311: Toxic in contact with skin [Danger Acute toxicity, dermal]
- H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
Storage
Keep at room temperature, below 30 °C, out of direct heat.
Store somewhere well-ventilated and away from any ignition source.
Metal drums or tinted glass, tightly sealed.
Strong acids, strong bases and powerful oxidizers.
Personal protective equipment
Nitrile or butyl, at least 0.4 mm thick.
Safety goggles with side shields.
A2 organic-vapor cartridge if the room isn't well ventilated.
Occupational exposure limits (HSE)
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EU harmonised classification (ECHA C&L)
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Transport
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FDA recalls & enforcement
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Compatibilities
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Open comparator with 2-Butanone oximePractical safety notes
- Corrosive. Wear chemical goggles, faceshield and chemical-resistant gloves. Have an eyewash within reach.
- Acute toxicity. Work under a fume hood, restrict access, keep a specific antidote plan available.
- Irritant / harmful. Ventilate the workspace and avoid skin contact.
- Serious health hazard (carcinogen, mutagen, reprotoxic, respiratory sensitizer). Substitute if possible; otherwise closed systems and medical surveillance.
Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.
FAQ
Is 2-Butanone oxime flammable?+
2-Butanone oxime (CAS 96-29-7) does not carry the GHS02 flame pictogram in our records. Always confirm with the manufacturer's SDS section 9 (flash point) before assuming a product is non-flammable.
What PPE should I wear when handling 2-Butanone oxime?+
Chemical-splash goggles and a faceshield, chemical-resistant gloves (nitrile or butyl) and an apron are the minimum. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.
How should 2-Butanone oxime be stored?+
Store 2-Butanone oxime (CAS 96-29-7) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Segregate acids from bases and keep away from metals that can be attacked.
Is 2-Butanone oxime dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for 2-Butanone oxime, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.
Where can I find the official Safety Data Sheet for 2-Butanone oxime?+
Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.
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