4-Methyl-2-pentanone
ALDRICH/W273104 - ≥99%, FCC
Synonym: Isobutyl methyl ketone; Isopropylacetone; MIBK; Methyl isobutyl ketone
CAS Number: 108-10-1
Empirical Formula (Hill Notation): C6H12O
Molecular Weight: 100.16
EC Number: 203-550-1
MDL Number: MFCD00008938
Linear Formula: (CH3)2CHCH2COCH3
Product Type: Chemical
agency | meets purity specifications of JECFA |
application(s) | flavors and fragrances |
assay | ≥99% |
autoignition temp. | 840 °F |
biological source | synthetic |
bp | 117-118 °C |
density | 0.801 g/mL at 25 °C (lit.) |
documentation | see Safety & Documentation for available documents |
expl. lim. | 1.2-8 %, 93 °F |
food allergen | no known allergens |
form | liquid |
grade | Kosher |
InChI | 1S/C6H12O/c1-5(2)4-6(3)7/ |
InChI key | NTIZESTWPVYFNL-UHFFFAOYSA |
mp | −80 °C (lit.) |
organoleptic | ethereal; fruity; spicy |
Quality Level | 400 ![]() |
refractive index | n |
reg. compliance | FCC |
FDA 21 CFR 117 | |
FDA 21 CFR 172.515 | |
SMILES string | CC(C)CC(C)=O |
vapor density | 3.5 (vs air) |
General description: | 4-Methyl-2-pentanone has been identified in the volatile fraction of lemon essence, Italian chestnut and crabmeat. |
Packaging: | 1 kg in glass bottle |
Packaging: | 4, 8 kg in steel drum |
Symbol | ![]() ![]() |
Signal word | Danger |
Hazard statements | H225 - H319 - H332 - H335 |
Precautionary statements | P210 - P233 - P240 - P241 - P304 + P340 + P312 - P305 + P351 + P338 |
Hazard Codes | F,Xn |
Risk Statements | 11-20-36/37-66 |
Safety Statements | 9-16-29 |
RIDADR | UN1245 - class 3 - PG 2 - Methyl isobutyl ketone |
WGK Germany | WGK 1 |
Flash Point(F) | 57.2 °F - closed cup |
Flash Point(C) | 14 °C - closed cup |
Supplemental Hazard Statements | EUH066 |
Purity | ≥99% |
bp | 117-118 °C |
mp | −80 °C (lit.) |
Density | 0.801 g/mL at 25 °C (lit.) |
Refractive Index | n |
FEMA Number | 2731 |
UNSPSC | 12164502 |