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Cas Database |
| Name |
2-Methyl-2-pentenal |
EINECS | 210-789-5 |
| CAS No. | 623-36-9 | Density | 0.829 g/cm3 |
| PSA | 17.07000 | LogP | 1.54160 |
| Solubility | 20g/L(20 oC) | Melting Point |
-90 °C |
| Formula | C6H10O | Boiling Point | 136.5 °C at 760 mmHg |
| Molecular Weight | 98.1448 | Flash Point | 33.4 °C |
| Transport Information | UN 1989 3/PG 3 | Appearance | clear colorless to pale yellow liquid |
| Safety | 26 | Risk Codes | 10-20-36 |
| Molecular Structure |
|
Hazard Symbols |
 Xn
|
| Synonyms |
2-Methyl-2-penten-1-al;2-Methyl-2-pentene-1-al;2-Methyl-3-ethylacrolein;NSC9464;a-Methyl-b-ethylacrolein;b-Ethyl-a-methylacrolein; |
Article Data | 171 |
2-Methyl-2-pentenal Chemical Properties
Chemistry informtion about 2-Methyl-2-Penten-1-Al (CAS NO.623-36-9) is:
IUPAC Name: (E)-2-Methylpent-2-Enal
Synonyms: (2e)-2-Methyl-2-Pentenal ; 2-Methyl-2-Penten-1-Al ; 2-Methyl-2-Pentena ; 2-Methylpentenal ; 2-Pentenal,2-Methyl- ; 2-Propylidene-Propionaldehyde ; 3-Ethyl-2-Methylacraldehyde ; Beta-Ethyl-Alpha-Methylacrolein
Product Categories: Alphabetical Listings ; Flavors and Fragrances ; M-N ; Aldehydes ; C1 to C6 ; Carbonyl Compounds
MF: C6H10O
MW: 98.14
EINECS: 210-789-5
Density: 0.829 g/cm3
Melting Point: -90°C
Flash Point: 33.4 °C
Boiling Point: 136.5 °C at 760 mmHg
Vapour Pressure: 7.34 mmHg at 25°C
Enthalpy of Vaporization: 37.39 kJ/mol
Refractive Index: n20/D 1.45(lit.)
Storage temp.: Flammables area
Sensitive: Air Sensitive
BRN: 506124
FEMA: 3194
Following is the molecular structure of 2-Methyl-2-Penten-1-Al (CAS NO.623-36-9) is:
2-Methyl-2-pentenal Uses
2-Methyl-2-Penten-1-Al (CAS NO.623-36-9) was used as food spices and organic synthesis intermediate.
2-Methyl-2-pentenal Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rabbit | LD50 | skin | 4500uL/kg (4.5mL/kg) | AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954. | |
| rat | LC50 | inhalation | 2000ppm/4H (2000ppm) | AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954. | |
| rat | LD50 | oral | 4290mg/kg (4290mg/kg) | AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954. |
2-Methyl-2-pentenal Consensus Reports
Reported in EPA TSCA Inventory.
2-Methyl-2-pentenal Safety Profile
Mildly toxic by ingestion, skin contact and inhalation. A skin and severe eye irritant. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.
Hazard Codes:
Xn
Risk Statements:
R10:Flammable.
R20:Harmful by inhalation.
R36:Irritating to eyes.
Safety Statements:
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: UN 1989 3/PG 3
WGK Germany: 1
RTECS: SB2100000
HazardClass: 3
PackingGroup: III
2-Methyl-2-pentenal Analytical Methods
Propionaldehyde for raw materials, in alkaline solution heated to 40 ~ 50 ° C, condensation in the system.
2-Methyl-2-pentenal Specification
2-Methyl-2-Penten-1-Al (CAS NO.623-36-9) is a clear colorless to pale yellow liquid with a grass fragrance smells.It can soluble in alcohol, ether, benzene and methanol, but insoluble in water. Natural materials found in the onion in the volatile group. It is flammable and irritating.
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