Product Name

  • Name

    Isobutyl formate

  • EINECS 208-818-1
  • CAS No. 542-55-2
  • Article Data27
  • CAS DataBase
  • Density 0.885 g/mL at 25 °C(lit.)
  • Solubility Soluble in water
  • Melting Point -96 °C
  • Formula C5H10 O2
  • Boiling Point 98.4 °C(lit.)
  • Molecular Weight 102.133
  • Flash Point 50 °F
  • Transport Information UN 2393 3
  • Appearance COLORLESS LIQUID
  • Safety Moderately toxic by ingestion. A very dangerous fire hazard when exposed to heat, open flame, or oxidizers. A moderate explosion hazard when exposed to heat or flame. To fight fire, use water spray, foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes. See also ESTERS.
  • Risk Codes 11-34
  • Molecular Structure Molecular Structure of 542-55-2 (Isobutyl formate)
  • Hazard Symbols FXi
  • Synonyms Formicacid, isobutyl ester (6CI,7CI,8CI); 2-Methylpropyl formate; Iso-butylmethanoate; Isobutyl formate; NSC 6968; Tetryl formate
  • PSA 26.30000
  • LogP 1.45130

Isobutyl formate Chemical Properties

IUPAC Name: Isobutyl formate
CAS: 542-55-2
EINECS: 208-818-1
Product Categories: C2 to C5 ; Carbonyl Compounds ; Esters ; Alphabetical Listings ; Flavors and Fragrances ; I-L .
Following is the Molecular Structure of Isobutyl formate (542-55-2):

SMILES: O=COCC(C)C
InChI: InChI=1/C5H10O2/c1-5(2)3-7-4-6/h4-5H,3H2,1-2H3
InChIKey: AVMSWPWPYJVYKY-UHFFFAOYAG
Std. InChI: InChI=1S/C5H10O2/c1-5(2)3-7-4-6/h4-5H,3H2,1-2H3
Std. InChIKey: AVMSWPWPYJVYKY-UHFFFAOYSA-N
Molecular Formula: C5H10O2
Molecular Weight: 102.13
Melting Point: -96℃
Boiling Point: 99.5℃ at 760mmHg
Flash Point: 10℃
Molar Volume: 115.1cm3
Density: 0.887g/cm3
Index of Refraction: 1.386
Molar Refractivity: 27.1cm3
Surface Tension: 24.8dyne/cm
Polarizability: 10.74 10-24cm3
Enthalpy of Vaporization: 33.88kJ/mol
Vapour Pressure: 38.2mmHg at 25℃

Isobutyl formate Uses

Used as a solvent and to make perfumes.

Isobutyl formate Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rabbit LD50 oral 3064mg/kg (3064mg/kg)   Industrial Medicine and Surgery. Vol. 41, Pg. 31, 1972.

Isobutyl formate Consensus Reports

Reported in EPA TSCA Inventory.

Isobutyl formate Safety Profile

Hazard Codes:  F Flammable,  C Corrosive.
Risk Statements: 11-34
R11: Highly Flammable.
R34: Causes burns.
Safety Statements 16-26-33-36/37/39-45
S16: Keep away from sources of ignition-No smoking.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S33: Take precautionary measures against static discharges.
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).
RIDADR: UN 2393 3/PG 2
WGK: Germany 2
RTECS: LQ8650000
HazardClass: 3.1
PackingGroup: II
Moderately toxic by ingestion. A very dangerous fire hazard when exposed to heat, open flame, or oxidizers. A moderate explosion hazard when exposed to heat or flame.

Isobutyl formate Standards and Recommendations

DOT Classification: 3; Label: Flammable Liquid.

Isobutyl formate Specification

 Isobutyl formate (542-55-2),which also can be called for 2-Methyl-1-propyl formate ; 2-Methyl-1-propylformate ; 2-Methylpropylmethanoate ; Formic acid,2-methylpropyl ester ; Formicacid,2-methylpropylester ; Formicacid2-methylpropylester ; Isobutylester kyseliny mravenci ; Isobutylesterkyselinymravenci .When Isobutyl formate (542-55-2) was heated,it emits acrid smoke and fumes. Isobutyl formate (542-55-2) is a clear colourless to light yellow liquid and it's vapors may be narcotic and irritating in high concentrations.It's soluble in water.Be attention of this chemical is highly flammable.

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