Cupam Lactone

Product nomen:

Cupam lactone

CAS;

39212-23-2

MF:

C9H16O2

MW:

156.22

EINECS:

254-357-4

Mol fasciculi:

39212-23-2.

fervens 

93-94 °C5 mm Hg (lit.)

density 

0.952 g/mL at 25 °C(lit.)

FEMA 

3803 | 4-HYDROXY-3-METHYLOCTANOIC ACIDUM LACTONE

refractivus index 

n20/D 1.4454(lit.)

Fp 

>230 °F

JECFA Number

437

CAS Reference

39212-23-2 (CAS Reference)

NIST Chemia Reference

2(3H) -furanone, 5-butyldihydro-4-methyl- (39212-23-2)

EPA Substantia Registry System

2(3H)-Furanone, 5-butyldihydro-4-methyl- (39212-23-2)

Periculum Codes 

Xi

Periculum Denunciationes 

36/37/38

Salus Denunciationes 

26-36-37/39

WGK Germania 

2

Chemical Properties

Cupam Lactone est found as its cis- and trans-isomers in cupa and in oakwood volatilia ; the cis-isomer in sensoriis verbis potior est. Patet, fere hyalina liquida cum intenso, calido, dulci, coumarino-similis odoris.
A cis-trans mixtio radicalis additionis reactio pentanalis praeparari potest cum acido crotonico sequitur reductiva cyclizatio inde ??-oxo Acidum cum sodium boron hydride / acidum sulphuricum . Ponitur in odore compositiones, verbi gratia, potiones.

Aroma limina values

LXXX% de gustum panel inveni cupam lactone intolerabilem apud 160 ppm

Gustus limina values

Sapor notae ad 0.5 ppm: silvestre, coumarinicum, cocoes, lactonicum, cremeo et nutty cum cocti nuance.

Nomen commercium

Methyl octalactoneTM (PFW)