C6H12O
100.16 g/mol
Industrial ChemicalDanger
4-Methyl-2-pentanone
CAS108-10-1EC203-550-1
Category
Industrial Chemical
Compound Class
Other
Primary Use
Solvent for paints, varnishes, and lacquers
4-Methyl-2-pentanone, commonly known as methyl isobutyl ketone (MIBK), is a colorless liquid ketone used primarily as a solvent. It is valued for its ability to dissolve gums, resins, and nitrocellulose.
Solvent for paints, varnishes, and lacquersSolvent for gums and resinsSolvent for nitrocellulose
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Controlled substances
Substances on this list are tightly controlled under chemical-weapons or precursor regulations. ChemAbout does not facilitate their procurement; this page is a compliance reference only.
Relevant lists:US DEA List II Chemicals
CAS 108-10-1
Related Compounds
ReferenceSame Category
4-methyl-2-pentanol
CAS108-11-2
Solvent for resins and dyestuffs
ReferenceSame Category
Isovaleryl chloride
CAS108-12-3
Synthesis of pharmaceuticals and agrochemicals
ReferenceSame Category
Diisopropylamine
CAS108-18-9
chemical intermediate and catalyst
ReferenceSame Category
Isopropyl ether
CAS108-20-3
Solvent for resins, waxes, oils, dyes
Safety Reference
Danger
H225Highly flammable liquid and vapour
H319Causes serious eye irritation
H332Harmful if inhaled
H336May cause drowsiness or dizziness
H351Suspected of causing cancer
H335May cause respiratory irritation
H350May cause cancer
H320Causes eye irritation
H331Toxic if inhaled
H372Causes damage to organs through prolonged or repeated exposure
H303May be harmful if swallowed
H305May be harmful if swallowed and enters airways
H313May be harmful in contact with skin
Customs Tariff Classification
The international HS code for 4-Methyl-2-pentanone (CAS 108-10-1) is 2914.13.
HS code (international, 6-digit)
2914.13
EU CN code (8-digit)
2914 13 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
4-methylpentan-2-one
InChIKey
NTIZESTWPVYFNL-UHFFFAOYSA-N
SMILES
CC(C)CC(=O)C
Synonyms (63)
- MIBK
- MIK
- Methyl isobutyl ketone, United States Pharmacopeia (USP)
- 2-Methyl-4-pentanal
- 2-Methyl-4-pentanone
- 2-Methylpropyl methyl ketone
- 2-Pentanone, 4-methyl-
- 4-Methyl-2-oxopentane
- 4-Methyl-2-pentanon
- 4-Methyl-2-pentanon [Czech]
- 4-Methyl-2-pentanone
- 4-Methyl-2-pentanone, puriss.
- 4-Methyl-pentan-2-on
- 4-Methylpentan-2-one
- 4-Metilpentan-2-one
- 4-Metilpentan-2-one [Italian]
- 4-methylpentane-2-one
- Caswell No. 574AA
- FEMA No. 2731
- FEMA Number 2731
- Hexon
- Hexon [Czech]
- Hexone
- Isobutyl methyl ketone
- Isobutyl-methylketon
- Isobutyl-methylketon [Czech]
- Isohexanone
- Isopropylacetone
- Ketone, isobutyl methyl
- METHYL ISOBUTYL KETONE
- Methyl I-butyl ketone
- Methyl isobutyl ketone (NF)
- Methyl isobutyl ketone, p.a.
- Methyl-2-pentanon,4-
- Methyl-isobutyl-cetone
- Methylisobutylketon
- Methylpentan-2-one
- Metilisobutilchetone
- Metyloizobutyloketon
- Metyloizobutyloketon [Polish]
- RCRA waste no. U161
- Rcra waste number U161
- Shell mibk
- ethyl iso-butyl ketone
- i-BuCOMe
- iso-C4H9COCH3
- methy isobutyl ketone
- methyl isobutyl ketone (MIBK)
- methylisobutlyketone
- methylisobutyketone