Whiskey lactone CAS: 39212-23-2

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Whiskey lactone CAS: 39212-23-2

Whiskey lactone CAS: 39212-23-2 Basic information

Product Name: Whiskey lactone
Synonyms: beta-Methyl-gamma-octanolactone;5-butyl-4-methyloxolan-2-one;WHISKEY LACTONE;rac-(3R*,4S*)-3-Methyl-4-hydroxyoctanoic acid 1,4-lactone;rac-(4R*)-4β*-Methyl-5α*-butyloxolane-2-one;rac-(4S*,5R*)-4α*-Methyl-5β*-butyl-4,5-dihydrofuran-2(3H)-one;rac-5β*-Butyld
CAS: 39212-23-2
MF: C9H16O2
MW: 156.22
EINECS: 254-357-4
Mol File: 39212-23-2.mol

Whiskey lactone CAS: 39212-23-2 Chemical Properties

density: 0.952 g/mL at 25 °C(lit.)
Boiling point: 93-94 °C5 mm Hg(lit.)
form: liquid
color: Colorless
refractive index: n20/D 1.4454(lit.)
FEMA: 3803 | 4-HYDROXY-3-METHYLOCTANOIC ACID LACTONE

产 品 名 称:威士忌内酯

Products Name: Whiskey lactone

生产日期: 20210315 (Y/M/D)

Date of Manu.: 20210315(Y/M/D)

号:WS20210315

Batch Number: WS20210315

批量: 284 kg

Batch Quantity: 284kg

保质期限:两年

Shelf Life: Two years

检测日期:20210315 (Y/M/D)

Analysis Date:20210315

取样地点:威士忌成品桶

PlaceWhiskey lactone drum

检验依据:Q/NNCK 003-2015

Test Standard: Q/NNCK 003-2015

分析结果Analytical Results

检测项目

Test Items

规格标准Specification

检测依据

Test Standard

检测结果

Test Results

香气(Odor)

具有香豆素、椰子、内酯、木香的香气 like coumarin 

coconutlactonecosed odor

 

GB/T 14454.2

符合Conformed

外观(Apperance

无色或浅黄色液体 colorless or light yellow liquid

GB/T 14454.3

无色透明液体

colorless liquid

折光指数[n]D20

Refractive Index[n]D20

 

1.4421.448

 

GB/T14454.4

 

1.4443

相对密度[D]25

25

Relative Density[D]25 5

2

0.9560.968

 

GB/T 11540

 

0.9604

溶解度(25℃)

Solubility in alcohol50%(25)

1mL 试样全溶于 6mL50%乙醇

(体积分数)中1:6(V/V)clear solution

 

 

GB/T 14455.3

 

符合Conformed

含量[GC 检测](%,面积归一化法

Content[by GC] (%  area

normalization method

 

两个异构体之和≥99.0 Sum of 2 isomers≥99.0

 

 

GB/T 11538

 

 

99.40

结论意见 Conclusion:

 

 

 

合格


Whiskey lactone Usage And Synthesis
Chemical PropertiesWhiskey Lactone is found as its cis- and trans-isomers in whiskey and in oakwood volatiles; the cis-isomer is the more important in sensory terms. It is a clear, almost colorless liquid with an intense, warm, sweet, coumarin-like odor.
A cis–trans mixture can be prepared by radical addition reaction of pentanal with crotonic acid followed by reductive cyclization of the resulting ??-oxo acid with sodium boron hydride/sulfuric acid . It is used in aroma compositions, for example, for beverages.
OccurrenceReported present in cognac, rum, Irish malt, bourbon whiskey, scotch, sherry, port and wine.
Aroma threshold values80% of a taste panel found whiskey lactone intolerable at 160 ppm
Taste threshold valuesTaste characteristics at 0.5 ppm: woody, coumarinic, coconut, lactonic, creamy and nutty with a toasted nuance.
Synthesis Reference(s)Tetrahedron Letters, 26, p. 6225, 1985 DOI: 10.1016/S0040-4039(00)95058-5
Trade nameMethyl octalactoneTM (PFW)


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