2-Methylbutters?ure Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R21/22:Gesundheitssch?dlich bei Berührung mit der Haut und beim Verschlucken.
R34:Verursacht Ver?tzungen.
S-S?tze 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 m?glich, dieses Etikett vorzeigen).
Beschreibung
2-Methylbutyric acid has a pungent, acrid odor similar to Roquefort cheese with an acrid taste. At low dilutions, it has a pleasant
fruity taste. May be prepared by decarboxylation of methyl ethyl
malonic acid (with heat); also by oxidation of fermentation amyl
alcohol (fusel oil).
Chemische Eigenschaften
clear colorless to pale yellowish liquid
Occurrence
Occurring as the d-, l-, and dl-isomers; the racemic form has been reported found in angelica root oil and coffee; the d-isomer in the ester form has been identified in lavender oil. Also reported found in apple, apricot, berries, grapes, papaya,
peach, guava, pineapple, potato, bell pepper, tomato, peppermint and spearmint oil, vinegar, wheat breads, cheeses, chicken, mutton,
pork, hop oil, beer, cognac, rum, whiskies, cider, cocoa, coffee, tea, peanuts, passion fruit, trassi, mango, plum, tamarind, rice, corn
oil, loquat, scallops, Chinese quince, maté, mammee apple and Roman chamomile oil, cranberry, grape brandy, oriental tobacco,
and strawberry
synthetische
By decarboxylation of methyl ethyl malonic acid (with heat); also by oxidation of fermentation amyl alcohol (fusel oil).
Definition
ChEBI: A methylbutyric acid comprising a butyric acid core carrying a 2-methyl substituent. Produced from amino acid leucine during nutrient starvation in bacteria.
Allgemeine Beschreibung
Enantioselective esterification of (+/-)-2-methylbutynic acid catalyzed by
Chromobacterium viscosum lipase immobilized in microemulsion-based organogels has been investigated.
2-Methylbutters?ure Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
