3-Methylvaleriansure

Bezeichnung:3-Methylvaleriansure

CAS-Nr105-43-1

Englisch Name:DL-3-Methylvaleric acid

CBNumberCB2231013

SummenformelC6H12O2

Molgewicht116.16

MOL-Datei105-43-1.mol

Synonyma

3-Methylvaleriansure

3-Methylvaleriansure physikalisch-chemischer Eigenschaften

Schmelzpunkt	-41 °C
Siedepunkt	196-198 °C (lit.)
Dichte	0.93 g/mL at 25 °C (lit.)
FEMA	3437 \| 3-METHYLPENTANOIC ACID
Brechungsindex	n20/D 1.416(lit.)
Flammpunkt	185 °F
storage temp.	Sealed in dry,Room Temperature
pka	pK1:4.766 (25°C)
Aggregatzustand	clear liquid
Wichte	0.930
Farbe	Colorless to Almost colorless
Geruch (Odor)	at 1.00 % in dipropylene glycol. animal sharp acidic cheesy green fruity sweaty
Geruchsart	animal
Wasserlöslichkeit	insoluble
JECFA Number	262
BRN	1720696
InChIKey	IGIDLTISMCAULB-UHFFFAOYSA-N
LogP	1.66
CAS Datenbank	105-43-1(CAS DataBase Reference)
NIST chemische Informationen	Pentanoic acid, 3-methyl-(105-43-1)
EPA chemische Informationen	Pentanoic acid, 3-methyl- (105-43-1)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	34
S-Sätze:	26-36/37/39-45
RIDADR	UN 3265 8/PG 2
WGK Germany	3
F	13
Hazard Note	Corrosive
TSCA	T
HazardClass	8
PackingGroup	II
HS Code	29159080

Gefahreninformationscode (GHS)

DL-3-Methylvaleric acid Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Beschreibung
3-Methylpentanoic has a sour, herbaceous, slightly green odor. This is synthesized from the diethylester of sec-butyl-malonic acid.
Chemische Eigenschaften
clear colorless to slightly yellow liquid
Occurrence
Reported found in the oil from tobacco leaves (d-form), baked potato, parmesan, provolone and romano cheese, goat and sheep cheese, lamb fat, rum, cocoa, black tea and chempedak (Arthocarpus polyphema).
Verwenden
3-Methylvaleric acid (3-Methylpentanoic acid) was used in the synthesis of 3-methyl-1-pentanol.
Definition
ChEBI: 3-methylvaleric acid is a methyl-branched fatty acid that is pentanoic acid which carries a methyl group at position 3. It has a role as a plant metabolite, an animal metabolite, a fungal metabolite and a flavouring agent. It is a methyl-branched fatty acid, a short-chain fatty acid, a branched-chain saturated fatty acid and a monocarboxylic acid. It is a conjugate acid of a 3-methylvalerate.
synthetische
From the diethylester of sec-butyl-malonic acid.
Aroma threshold values
Detection: 46 to 280 ppb
Taste threshold values
Taste characteristics at 30 ppm: sour, cheesey, fresh with fruity notes
Synthesis Reference(s)
Journal of the American Chemical Society, 75, p. 6342, 1953 DOI: 10.1021/ja01120a539
The Journal of Organic Chemistry, 65, p. 397, 2000 DOI: 10.1021/jo991218a
Organic Syntheses, Coll. Vol. 2, p. 416, 1943

DL-3-Methylvaleric acid Upstream-Materialien And Downstream Produkte

3-Methylvaleriansure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

105-43-1, DL-3-Methylvaleric acid Verwandte Suche:

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