6-Methylhept-5-en-2-on

Bezeichnung:6-Methylhept-5-en-2-on

CAS-Nr110-93-0

Englisch Name:6-Methyl-5-hepten-2-one

CBNumberCB4729000

SummenformelC8H14O

Molgewicht126.2

MOL-Datei110-93-0.mol

Synonyma

6-Methylhept-5-en-2-on

6-Methylhept-5-en-2-on physikalisch-chemischer Eigenschaften

Schmelzpunkt	-67.1 °C
Siedepunkt	73 °C18 mm Hg(lit.)
Dichte	0.855 g/mL at 25 °C(lit.)
Dampfdruck	1.121hPa at 20℃
Brechungsindex	n20/D 1.439(lit.)
FEMA	2707 \| 6-METHYL-5-HEPTEN-2-ONE
Flammpunkt	123 °F
storage temp.	Sealed in dry,2-8°C
Löslichkeit	Soluble in methanol and chloroform.
Aggregatzustand	Liquid
Farbe	Colorless to Light yellow
Wichte	0.855
PH	6.6 (3g/l, H2O, 25℃)
Geruch (Odor)	at 10.00 % in dipropylene glycol. citrus green musty lemongrass apple
Geruchsart	citrus
Explosionsgrenze	1.1-7.3%(V)
Wasserlöslichkeit	insoluble
JECFA Number	1120
BRN	1741705
LogP	2.07 at 25℃
CAS Datenbank	110-93-0(CAS DataBase Reference)
NIST chemische Informationen	5-Hepten-2-one, 6-methyl-(110-93-0)
EPA chemische Informationen	6-Methyl-5-hepten-2-one (110-93-0)

Sicherheit

R-Sätze:	10-36/37/38
S-Sätze:	16-24/25
RIDADR	UN 1224 3/PG 3
WGK Germany	1
RTECS-Nr.	MJ9700000
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29141990
Toxizität	The acute oral LD₅₀ in rats was reported as 3.5 g/kg (B?r & Griepentrog, 1967) and as 4T g/kg (3.33-5.04 g/kg) (Keating, 1972). The acute dermal LD₅₀ exceeded 5 g/kg (Keating, 1972).

Gefahreninformationscode (GHS)

6-Methyl-5-hepten-2-one Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R10:Entzündlich.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
Beschreibung
6-Methyl-5-hepten-2-one has a strong, fatty, green, citrus-like odor, and a bittersweet taste reminiscent of pear. May be prepared from oil of lemongrass or from citral by refluxing for 12 hours in aqueous solution containing K2C 03, and subsequent distillation and vacuum fractionation; from acetoacetic ester and methylbuten-3-ol-2 with aluminum alcoholate in Carroll’s reaction followed by pyrolysis of the ester.
Chemische Eigenschaften
6-Methyl-5-hepten-2-one is an important intermediate in the synthesis of terpenoids. Its odor properties are not impressive. It occurs in nature as a degradation product of terpenes. (Z)- and (E)-Tagetone, [3588-18-9], [6752-80-3], are major components of tagetes oil. Solanone [1937-54-8] and pseudoionone [141-10-6] are acyclicC13 ketoneswith a terpenoid skeleton. Solanone is one of the flavor-determining constituents of tobacco, and pseudoionone is an intermediate in the synthesis of ionones.
Chemische Eigenschaften
CLEAR SLIGHTLY YELLOW LIQUID
Chemische Eigenschaften
6-Methyl-5-hepten-2-one has a strong, fatty, green, citrus-like odor and bittersweet taste reminiscent of pear.
Occurrence
Originally identified in lemongrass; it has been reported found in the essential oils of palmarosa, lemon, citronella, vervain, geranium, Ocimum canum, Artemisia scoparia, Urtica dioica and others. Also reported found in apple, apricot, sweet and sour cherry, orange juice, citrus peel oils, bilberry, lingonberry, cranberry, guava, grapes, melon, peach, pear, raspberry, strawberry, blackberry, carrot, celery, tomato, potato, clove bud and leaf, ginger, peppermint oil, thymus, Gruyere cheese, butter, beef, hop oil, beer, cognac, cider, white wine, cocoa, tea, peanut oil, avocado, Arctic bramble, cloudberry, olive, passion fruit, plumcot, rose apple, marjoram, starfruit, mango, fig, rice, rice bran, quince, origanum, calamus, buckwheat, corn oil, wort, dried bonito, elderberry, cherimoya, kiwifruit, mountain papaya, endive, lemon balm, clary sage, nectarine, clam, Cape gooseberry, maté, German chamomile oil and mastic gum leaf oil, lime oil and apple brandy
Verwenden
Organic synthesis, inexpensive perfumes, fla-voring.
Verwenden
6-Methyl-hepten-2-one is used in the synthesis of thyrsiferyl 23-Acetate which acts as an anti-leukemic inducer of apoptosis.
Definition
ChEBI: A heptenone that is hept-5-en-2-one substituted by a methyl group at position 6. It is a volatile oil component of citronella oil, lemon-grass oil and palmarosa oil.
synthetische
From oil of lemongrass or from citral by refluxing for 12 hours in aqueous solution containing K2CO3, and subsequent distillation and vacuum fractionation; from acetoacetic ester and methyl-buten-3-ol-2 with aluminum alcoholate in Carroll’s reaction followed by pyrolysis of the ester
Aroma threshold values
Detection: 50 ppb
Taste threshold values
Taste characteristics at 10 ppm: green, vegetative, musty, apple, banana and green bean-like.
Synthesis Reference(s)
Tetrahedron Letters, 28, p. 4893, 1987 DOI: 10.1016/S0040-4039(00)96654-1
Synthesis, p. 796, 1981 DOI: 10.1055/s-1981-29599
Allgemeine Beschreibung
6-Methyl-5-hepten-2-one is one of the main flavor volatile of tomatoes.
Flammability and Explosibility
Flammable
Sicherheitsprofil
Moderately toxic by ingestion. A skin irritant. Flammable liquid when exposed to heat, sparks, or flame. When heated to decomposition it emits acrid smoke and irritating fumes.

6-Methyl-5-hepten-2-one Upstream-Materialien And Downstream Produkte

6-Methylhept-5-en-2-on Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

110-93-0, 6-Methyl-5-hepten-2-one Verwandte Suche:

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