B

2-Butanone oxime

IUPAC: N-butan-2-ylidenehydroxylamine

C4H9NO Solvents CAS 96-29-7
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Quick Reference
Formula / NotationC4H9NO
CAS Number96-29-7
Molecular Weight87.12
Melting Point-21.1 °F (NTP, 1992)
Boiling Point306 °F at 760 mmHg (NTP, 1992)
Density0.9232 at 68 °F (NTP, 1992) - Less dense than water; will float
Solubilitygreater than or equal to 100 mg/mL at 72 °F (NTP, 1992)
AppearanceMethyl ethyl ketoxime is a clear colorless liquid with a musty odor. (NTP, 1992)
Also Known AsN-butan-2-ylidenehydroxylamine; methylethyl ketoxime; Ethyl-methylketonoxim; DTXSID1021821; MEKO; DTXCID701821; RefChem:909691; 51YGE935U9; 96-29-7; Methyl ethyl ketoxime
CategorySolvents

What is 2-Butanone oxime?

2-Butanone oxime (C4H9NO) is a solvent that appears as Methyl ethyl ketoxime is a clear colorless liquid with a musty odor. (NTP, 1992). It has a molecular weight of 87.12 g/mol. Its IUPAC name is N-butan-2-ylidenehydroxylamine. Boiling point: 306 °F at 760 mmHg (NTP, 1992). Melting point: -21.1 °F (NTP, 1992).

Formula & Notation

C4H9NO

IUPAC Name: N-butan-2-ylidenehydroxylamine

Other Names / Synonyms: N-butan-2-ylidenehydroxylamine; methylethyl ketoxime; Ethyl-methylketonoxim; DTXSID1021821; MEKO; DTXCID701821; RefChem:909691; 51YGE935U9; 96-29-7; Methyl ethyl ketoxime

Properties & Characteristics

Appearance: Methyl ethyl ketoxime is a clear colorless liquid with a musty odor. (NTP, 1992). Molecular formula: C4H9NO. Molecular weight: 87.12 g/mol. Boiling point: 306 °F at 760 mmHg (NTP, 1992). Melting point: -21.1 °F (NTP, 1992). Density: 0.9232 at 68 °F (NTP, 1992) - Less dense than water; will float. Solubility: greater than or equal to 100 mg/mL at 72 °F (NTP, 1992). Vapor pressure: 22.6 mmHg at 73 °F ; 50.9 mmHg at 118 °F (NTP, 1992). LogP: 0.7.

Physical Data

PropertyValue
Melting Point-21.1 °F (NTP, 1992)
Boiling Point306 °F at 760 mmHg (NTP, 1992)
Density0.9232 at 68 °F (NTP, 1992) - Less dense than water; will float
Molecular Weight87.12
Solubilitygreater than or equal to 100 mg/mL at 72 °F (NTP, 1992)
AppearanceMethyl ethyl ketoxime is a clear colorless liquid with a musty odor. (NTP, 1992)

Uses & Applications

Used as a reaction solvent in organic synthesis, extraction solvent, cleaning agent, or in pharmaceutical manufacture.

Safety Information

Flammable solvent. Keep away from heat, sparks, and open flame. Use in well-ventilated area or fume hood. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term 2-Butanone oxime
Formula C4H9NO
CAS Number 96-29-7
Molecular Weight 87.12
Category Solvents
Synonyms N-butan-2-ylidenehydroxylamine; methylethyl ketoxime; Ethyl-methylketonoxim; DTXSID1021821; MEKO; DTXCID701821; RefChem:909691; 51YGE935U9; 96-29-7; Methyl ethyl ketoxime

Frequently Asked Questions

2-Butanone oxime (C4H9NO) is a solvent that appears as Methyl ethyl ketoxime is a clear colorless liquid with a musty odor. (NTP, 1992). It has a molecular weight of 87.12 g/mol. Its IUPAC name is N-butan-2-ylidenehydroxylamine. Boiling point: 306 °F at 760 mmHg (NTP, 1992). Melting point: -21.1 °F (NTP, 1992).

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.