A5003212
Isoamyl acetate , standardforGC,≥99.5%(GC) , 123-92-2
Synonym(s):
Acetic acid 3-methylbutyl ester;Isoamyl acetate;iso-Amyl acetate, Acetic acid isoamyl ester;Isopentyl acetate;Pentyl acetate
CAS NO.：123-92-2
Empirical Formula: C7H14O2
Molecular Weight: 130.18
MDL number: MFCD00008946
EINECS: 204-662-3
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -78 °C (lit.) |
| Boiling point: | 142 °C/756 mmHg (lit.) |
| Density | 0.876 g/mL at 25 °C (lit.) |
| vapor density | 4.5 (vs air) |
| vapor pressure | 5 mm Hg ( 25 °C) |
| refractive index | n |
| FEMA | 2055 | ISOAMYL ACETATE |
| Flash point: | 77 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | ethanol: soluble1ml/3ml, clear, colorless (60%ethanol) |
| color | Clear Colorless |
| Odor | Banana-like odor |
| explosive limit | 1-10%(V) |
| Odor Type | fruity |
| Water Solubility | 0.20 g/100 mL. Slightly soluble |
| JECFA Number | 43 |
| Merck | 14,5111 |
| BRN | 1744750 |
| Henry's Law Constant | 10.25 at 37 °C (static headspace-GC, Bylaite et al., 2004) |
| Exposure limits | TLV-TWA 100 ppm (～530 mg/m3)
(ACGIH, MSHA, and OSHA); TLV-STEL
125 ppm (～655 mg/m3); IDLH 3000 ppm
(NIOSH). |
| Dielectric constant | 5.6（20℃） |
| LogP | 2.7 at 35℃ |
| CAS DataBase Reference | 123-92-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 1-Butanol, 3-methyl-, acetate(123-92-2) |
| EPA Substance Registry System | Isoamyl acetate (123-92-2) |
Description and Uses
In commercial practice amyl invariably means isoamyl, unless it is prefaced by the n- for normal. Isoamyl acetate has a powerful, fruity odor with a bittersweet taste reminiscent of pear. If impure, the odor is strong, penetrating, and almost shocking. Usually prepared by esterification of commercial isoamyl alcohol with acetic acid.
Sting pheromone of the honeybee.1
Safety
| Symbol(GHS) |  GHS02 |
| Signal word | Warning |
| Hazard statements | H226 |
| Precautionary statements | P210 |
| Hazard Codes | Xi |
| Risk Statements | 10-66-36/37/38-R66-R10 |
| Safety Statements | 23-25-2-36/37/39-26-16-S25-S23-S2 |
| RIDADR | UN 1104 3/PG 3 |
| OEB | A |
| OEL | TWA: 100 ppm (525 mg/m3) |
| WGK Germany | 1 |
| RTECS | NS9800000 |
| Autoignition Temperature | 680 °F |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29153900 |
| Hazardous Substances Data | 123-92-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rat > 5000 mg/kg |
| IDLA | 1,000 ppm |
