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. 2019 Jul 17;17(7):e05749. doi: 10.2903/j.efsa.2019.5749

Table B.1.

Summary table on specifications data for flavouring substances in FGE.70Rev1

Information included in the EU Union List Regulation No. (EU) 1334/2008 as amended Most recent available specifications dataa EFSA Comments
FL‐no JECFA‐no FEMA no CoE no CAS no Chemical name Purity of the named compound Phys. form Mol. formula Mol. weight Solubilityc Solubility in ethanold Boiling point, °Ce Melting point, °C ID test Assay minimum isomers distribution/ SCh Refrac. indexf Spec. gravityg

02.049

1184

2780

589

7786‐44‐9

Nona‐2,6‐dien‐1‐ol b

Liquid

C9H16O

140.23

Insoluble

Soluble

196

IR NMR

95%

not less than 92% (2E,6Z),

3‐5% (2E,6E)

< 3% (2Z,6Z) and (2Z,6E)

1.463–1.465

0.860–0.880

 

02.139

1189

3911

11748

18409‐21‐7

Deca‐2,4‐dien‐1‐ol b

Liquid

C10H18O

154.25

Insoluble

Soluble

112 (13 hPa)

IR NMR MS

95% (sum of isomers)

92–95% (2E,4E); 2–5% (2E,4Z); 2–5% (2Z,4E); 0–2% (2Z,4Z)

1.485–1.495

0.861–0.871

The chemical name in the UL should be changed to deca‐(2E,4E)‐dien‐1‐ol, in accordance with the CAS nr and the most recent specifications on stereoisomeric composition

(Documentation provided to EFSA nr.10)

02.153

1784

33467‐79‐7

Hepta‐2,4‐dien‐1‐ol b

Liquid

C7H12O

112.17

Freely soluble

80 (19 hPa)

MS

95%

90–98% (2E,4E); 2–10% (2E,4Z); 2–10% (2Z,4E); 0–2% (2Z,4Z)

1.487–1.493 The chemical name in the UL should be changed to Hepta‐(2E,4E)‐dien‐1‐ol, in accordance with the CAs nr and the most recent specifications on stereoisomeric composition (Documentation provided to EFSA nr.10)

02.162

1174

3922

111‐28‐4

Hexa‐2,4‐dien‐1‐ol b

Solid

C6H10O

98.16

Insoluble

Soluble

24–33

IR NMR MS

95%

95% or greater (2E,4E),

up to 5% of (2E,4Z),

< 3% (2Z,4E) and (2Z,4Z)

 

02.188

1183

3951

11802

62488‐56‐6

Nona‐2,4‐dien‐1‐ol

At least 92%; secondary component

3‐4% 2‐nonen‐1‐ol

Liquid

C9H16O

140.23

Insoluble

Soluble

85 (0.7 hPa)

IR NMR MS

92%

SC: 3–4% 2‐nonen‐1‐ol

1.486–1.496

0.862–0.872

 

05.057

1175

3429

640

142‐83‐6

Hexa‐2(trans),4(trans)‐dienal b

Liquid

C6H8O

96.13

Slightly soluble

Soluble

64 (20 hPa)

MS

97%

SC:(2–5%) hexa‐(2E,4Z)‐dienal, (1%) hexa‐(2Z,4Z)‐ dienal, (1%) hexa‐(2Z,4E)‐dienal, (0.1%) 2,4‐ hexadecanoic acid)

1.538–1.543

0.896–0.902 (20°)

 

05.058

1186

3377

659

557‐48‐2

Nona‐2(trans),6(cis)‐dienal

At least 92%; secondary component

4‐7% (E,E)‐2,6‐nonadienal

Liquid

C9H14O

138.21

Insoluble

Soluble

94

IR

92%

SC: 4–7% (E,E)‐2,6‐nonadienal

1.470–1.475

0.850–0.870

 

05.064

1198

3638

685

13552‐96‐0

Trideca‐2(trans),4(cis),7(cis)‐trienal

At least 71%; secondary components 14% 4‐cis‐7‐cis‐tridecadienol; 6% 3‐cis‐7‐cis‐tridecadienol; 5% 2‐trans‐7‐

cis‐tridecadienal; 3% 2‐trans‐4‐trans‐7‐cis‐tridecatrienal

Liquid

C13H20O

192.30

Insoluble

Soluble

138 (0.4 hPa)

NMR MS

71%

SC:14% (4Z,7Z)‐tridecadienol; 6% (3Z,7Z)‐tridecadienol; 5% (2E,7Z)‐tridecadienal; 3% (2E,4E,7Z)‐tridecatrienal

1.472–1.478

0.801–0.809

 

05.071

1185

3212

732

6750‐03‐4

Nona‐2,4‐dienal At least 89%; secondary components 5‐6% 2,4‐nonadien‐1‐ol and 1‐2% 2‐nonen‐1‐ol

Liquid

C9H14O

138.21

Insoluble

Soluble

97 (13 hPa)

IR MS

89%

90–98% (2E,4E); 0.1–9% (2E,4Z); 0.1–9% (2Z,4E);

0–2% (2Z,4Z)

1.522–1.525

0.850–0.870

 

05.084

1179

3164

729

4313‐03‐5

Hepta‐2,4‐dienal

At least 92%;

Secondary components

2‐4% (E,Z)‐2,4‐heptadienal and 2‐4% 2,4‐heptadienoic acid

Liquid

C7H10O

110.16

Insoluble

Soluble

84 (1 hPa)

IR MS

92%

92–100% (2E,4E); 0.1–7%

(2E,4Z); 1–5% (2Z,4E); 0–2% (2Z,4Z)

1.478–1.480

0.822–0.828

The chemical name in the UL should be changed to Hepta‐(2E,4E)‐dienal, in accordance with the CAS nr and the most recent specifications on stereoisomeric composition (Documentation provided to EFSA nr.10)

05.101

1173

3217

11695

764‐40‐9

Penta‐2,4‐dienal b

Liquid

C5H6O

82.13

n.a.

Soluble

60 (91 hPa)

NMR MS

95%

(predominantly E,E)

1.525–1.532

0.801–0.809

 

05.108

1195

3422

10385

13162‐46‐4

Undeca‐2,4‐dienal b

Liquid

C11H18O

166.26

Insoluble

Soluble

129 (17 hPa)

NMR MS

95%

sum of isomers. Up to 95% (E,E) with (5‐10%) (E,Z)

1.500–1.505

0.896–0.906

 

05.111

1182

3466

10371

56767‐18‐1

Octa‐2(trans),6(trans)‐dienal b

Liquid

C8H12O

124.19

Insoluble

Soluble

97‐99 (5 hPa)

IR NMR

96%

1.469–1.475

0.835–0.841

 

05.120

1197

3637

21662‐13‐5

Dodeca‐2,6‐dienal b

Liquid

C12H20O

180.28

Insoluble

Soluble

130 (7 hPa)

NMR

97%

> 95% (2E,6Z)‐Dodeca‐2,6‐dienal

1.425–1.431

0.987–0.993

The chemical name in the UL should be changed to Dodeca‐(2E,6Z)‐dienal, in accordance with the CAS nr and the most recent specifications on stereoisomeric composition (Documentation provided to EFSA nr.10)

05.125

1196

3670

11758

21662‐16‐8

Dodeca‐2,4‐dienal At least 85%; secondary component 11–12% 2‐trans‐4‐cis isomer

Liquid

C12H20O

180.28

Slightly soluble

Soluble

Miscible in oils

130

IR NMR MS

85%

90–98% (2E,4E); 0.1–9% (2E,4Z); 0.1–9% (2Z,4E); 0–2% (2Z,4Z)

1.470–1.476

0.983–0.989

The chemical name in the UL should be changed to Dodeca‐(2E,4E)‐dienal, in accordance with the CAS nr and the most recent specifications on stereoisomeric composition (Documentation provided to EFSA nr.10)

05.127

1181

3721

11805

30361‐28‐5

Octa‐2(trans),4(trans)‐dienal b

Liquid

C8H12O

124.18

Insoluble

Soluble

105–106 (10 hPa)

IR NMR MS

95%

(90–98%) (E,E) with (0.1–8%) (E,Z)

1.519–1.525

0.832–0.839

 

05.140

1190

3135

2120

25152‐84‐5

Deca‐2(trans),4(trans)‐dienal At least 89%, Secondary components (3‐4%) mixture of (2Z,4Z), (2Z,4E) and(2E,4Z) ‐decadienals; (3‐4%) acetone plus trace of isopropanol

Liquid

C10H16O

152.24

Insoluble

Soluble

104

IR MS

minimum 90% of the

(E,E)‐isomer and min. 95% (sum of isomers);

SC: 4–5% (2E,4Z); < 1% (2Z,4Z); < 0.5% (2Z,4E); < 0,1% 2,4‐decadienoic acid

1.512–1.517

0.866–0.876

The minimum purity assay should be updated to 90% minimum of the (E,E)‐isomer; 95% (sum of isomers), in accordance with the latest data provided (Documentation provided to EFSA nr: 5)

05.141

1786

4089

51325‐37‐2

Deca‐2,4,7‐trienal b

Liquid

C10H14O

150.22

Very slightly soluble

Very soluble

233

IR NMR MS

95%

(81–83%) (6E,4E,7Z)

(5–6%) (2E,4Z,7Z);

(10–11%) (2E,4E,7E)

1.538–1.544

0.898–0.905

 

05.172

1187

3766

17587‐33‐6

Nona‐2(trans),6(trans)‐dienal b

Liquid

C9H14O

138.21

Insoluble

Soluble

88 (14 hPa)

NMR

97%

1.439–1.445

0.856–0.864

 

05.173

1785

4187

57018‐53‐8

Nona‐2,4,6‐trienal b

Liquid

C9H12O

136.19

Freely soluble

194

MS

95% (sum of isomers)

> 95% (2E,4E,6E); < 5% other isomers; 0–1% (2Z,4Z,6Z)

1.550–1.556

0.867–0.873

The chemical name in the UL should be changed to Nona‐(2E,4E,6E)‐trienal, in accordance with the CAS nr and the most recent specifications on stereoisomeric composition (Documentation provided to EFSA nr.10)

08.085

1176

3921

110‐44‐1

(E,E)‐Hexa‐2,4‐dienoic acid b

Solid

C6H8O2

112.13

Slightly soluble

Soluble

132–135

IR NMR

99%

This flavouring substance is also called sorbic acid and corresponds to food additive (E‐200)

09.194

1178

2459

635

2396‐84‐1

Ethyl (E,E)‐hexa‐2,4‐dienoic acid b

Liquid

C8H12O2

140.18

Slightly soluble

Soluble

195–196

IR MS

98%

1.491–1.498

0.936–0.939

 

09.260

1192

3148

10574

3025‐30‐7

Ethyl (E,Z)‐deca‐2,4‐dienoate b

Liquid

C12H20O2

196.29

Insoluble

120 (9 hPa)

NMR

90%

SC: (E,E)‐ethyl 2,4‐decadienoate

1.480–1.1486

0.917–0.920

The purity and content of the secondary components should be clarified

09.300

1177

3714

689‐89‐4

Methyl (E,E)‐hexa‐2,4‐dienoic acid b

Liquid

C7H10O2

126.16

Slightly soluble

Soluble

180

IR NMR

99%

1.501–1.505

0.933–0.938

 

09.371

1193

3832

10576

78417‐28‐4

Ethyl deca‐2,4,7‐trienoate b

Liquid

C12H18O2

194.28

Soluble

Soluble

134 (18 hPa)

IR NMR

95%

(Mixture of (Z)‐ and (E)‐isomer for all three C=C double bonds)

1.547–1.554

0.933–0.939

CAS nr in Union List does not specify stereoisomeric composition. Composition of stereoisomeric mixture to be specified

09.573

1780

10675

1516‐17‐2

Hexa‐2,4‐dienyl acetate b

Liquid

C10H20O2

140.18

Freely soluble

80 (20 hPa)

MS

95%

(predominantly E,E‐isomer)

1.470–1.476

0.908–0.914

 

09.639

1191

3859

4493‐42‐9

Methyl (E,Z)‐deca‐2,4‐dienoate

At least 93%; secondary component

2–5% (E,E) methyl 2,4‐decadienoate

Liquid

C11H18O2

182.26

Insoluble

Soluble

67 (1 hPa)

IR NMR

93%

(Material in commerce is min. 93% pure (2E,4Z)‐isomer. Min. Purity > 95% (sum of isomers: other isomer mainly (2E,4E)‐isomer)

1.488–1.494

0.917–0.923

 

09.840

1194

3648

10889

84788‐08‐9

Propyl 2,4‐decadienoate b

Liquid

C13H22O2

210.32

Insoluble

Soluble

110 (0.5 hPa)

NMR

95%

(Mixture of (Z)‐ and (E)‐isomer for two C = C‐double bonds)

1.468–1.475

0.913–0.919

Composition of the stereoisomeric mixture to be specified

09.947

1188

3952

68555‐65‐7

(E,Z)‐2,6‐Nonadienyl acetate b

Liquid

C11H18O2

182.26

Sparingly soluble

Soluble

231

IR NMR MS

95%

1.448–1.458

0.905–0.907

 

FGE: Flavouring Group Evaluation; FL‐no: FLAVIS number; FLAVIS: Flavour Information System; JECFA: The Joint FAO/WHO Expert Committee on Food Additives; FEMA: Flavor and Extract Manufacturers Association; CoE: Council of Europe; CAS: Chemical Abstract Service; ID: identity; IR: infrared spectroscopy; NMR: nuclear magnetic resonance; MS: mass spectrometry.

a

JECFA (2003, 2007) and Documentation provided to EFSA nr.4;5;7;10 and 15.

b

At least 95% unless otherwise specified.

c

Solubility in water, if not otherwise stated.

d

Solubility in 95% ethanol, if not otherwise stated.

e

At 1013.25 hPa, if not otherwise stated.

f

At 20°C, if not otherwise stated.

g

At 25°C, if not otherwise stated.

h

SC: Secondary components.