2-Methylpent-2-enal

Bezeichnung:2-Methylpent-2-enal

CAS-Nr623-36-9

Englisch Name:2-Methyl-2-pentenal

CBNumberCB5853997

SummenformelC6H10O

Molgewicht98.14

MOL-Datei623-36-9.mol

Synonyma

2-Methylpent-2-enal

2-Methylpent-2-enal physikalisch-chemischer Eigenschaften

Schmelzpunkt	-90°C
Siedepunkt	137-138 °C/765 mmHg (lit.)
Dichte	0.86 g/mL at 25 °C (lit.)
FEMA	3194 \| 2-METHYL-2-PENTENAL
Brechungsindex	n20/D 1.45(lit.)
Flammpunkt	89 °F
storage temp.	Flammables area
Aggregatzustand	Liquid
Farbe	Clear colorless to pale yellow
Geruch (Odor)	at 10.00 % in dipropylene glycol. aldehydic green cortex fruity alliaceous ripe cherry earthy
Geruchsart	green
Wasserlöslichkeit	20g/L(20 ºC)
Sensitive	Air Sensitive
JECFA Number	1209
BRN	506124
LogP	1.60
EPA chemische Informationen	2-Pentenal, 2-methyl- (623-36-9)

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	10-20-36-43-41
S-Sätze:	26-39-37-27-24
RIDADR	UN 1989 3/PG 3
WGK Germany	1
RTECS-Nr.	SB2100000
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29121990

Gefahreninformationscode (GHS)

2-Methyl-2-pentenal Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R10:Entzündlich.
R20:Gesundheitsschädlich beim Einatmen.
R36:Reizt die Augen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Beschreibung
2-Methyl-2-pentenal has a powerful grassy-green, slightly fruity odor and can be prepared synthetically by aldolic condensation of propionaldehyde.
Chemische Eigenschaften
2-Methyl-2-pentenal has a powerful, grassy-green, slightly fruity odor.
Chemische Eigenschaften
clear colorless to pale yellow liquid
Occurrence
Reported found as a volatile component in onion. Also reported found in roasted onion, roasted peanut, cranberry, guava, grapes, grape brandy, papaya, shallots, leek, chive, fried potato, mustard, parmesan cheese, fish, roast chicken, cooked beef, beer, cognac, coffee, tea, peanut, Japanese plum, mango, walnut, prickly pear, pumpkin, oysters, lamb’s lettuce and maté
synthetische
By aldolic condensation of propionaldehyde.
Aroma threshold values
Recognition: 290 ppb. Aroma characteristics at: 1.0%: ethereal and pungent acrylate and acetophenonelike, penetrating, irritating with a fresh green juicy-fruity nuance.
Taste threshold values
Taste characteristics at 5 ppm: sweet, tangy, juicy fruit, cherry, almond, citrus and topical with a slight penetrating burning sensation and jamy brown with an alliaceous sharpness.
Synthesis Reference(s)
The Journal of Organic Chemistry, 48, p. 1939, 1983 DOI: 10.1021/jo00159a042
Allgemeine Beschreibung
2-Methyl-2-pentenal has been identified as one of the major volatile flavor compounds in chive, caucas, onion and leek.

2-Methyl-2-pentenal Upstream-Materialien And Downstream Produkte

2-Methylpent-2-enal Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

623-36-9, 2-Methyl-2-pentenal Verwandte Suche:

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