Skip to main content
. 2022 Feb 11;20(2):e07102. doi: 10.2903/j.efsa.2021.7102

Table B.1.

Summary table on specifications data for flavouring substances in FGE.63Rev4, for chemical structures, see Appendix D

Information included in the EU Union list

Regulation No (EU) 1334/2008 as amended

Most recent available specifications data a

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

Solubility c

Solubility in ethanol d

Boiling point, °C e

Melting point, °C

ID test

Assay minimum (isomers distribution/SC h )

Refrac. Index f

Spec. gravity g

02.023

1152

2805

72

3391‐86‐4

Oct‐1‐en‐3‐ol (b)

Liquid

C8H16O

128.22

Insoluble

Miscible

175–175.2

NMR

96%

1.431–1.442

0.835–0.845

02.099

1150

3584

11717

616‐25‐1

Pent‐1‐en‐3‐ol (b)

Liquid

C5H10O

86.13

Sparsely soluble

Miscible

114

NMR

98% (racemate)

1.419–1.427

0.831–0.837

02.102

1140

3602

76649‐14‐4

Oct‐3‐en‐2‐ol (b)

Liquid

C8H16O

128.22

Insoluble

Miscible

73–76 (13 hPa)

IR NMR MS

95% (E)‐isomer

(racemate)

1.422–1.428

0.826–0.836

The chemical name should be changed to Oct‐(3E)‐en‐2‐ol and the CAS number to 57648‐55‐2 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1 and 2)

02.104

1151

3608

10220

4798‐44‐1

Hex‐1‐en‐3‐ol (b)

Liquid

C6H12O

100.16

Insoluble

Miscible

133.5–134

NMR

98% (racemate)

1.425–1.431

0.830–0.836

02.136

1153

3824

51100‐54‐0

Dec‐1‐en‐3‐ol (b)

Liquid

C10H20O

156.27

Slightly soluble

Miscible

215

NMR MS

97% (racemate)

1.439–1.446

0.836–0.842

02.155

1842

4129

10218

4938‐52‐7

1‐Hepten‐3‐ol (b)

Liquid

C7H14O

114.19

Practically insoluble or insoluble

Freely soluble

155

MS

97%(racemate)

1.431–1.437

0.834–0.837

02.193

1141

3888

4798‐61‐2

Oct‐2‐en‐4‐ol (b)

Liquid

C8H16O

128.22

Insoluble

50% Soluble in ethanol

174–176

IR NMR MS

% (E)‐isomer

1–2% (Z) isomer

(racemate)

1.438–1.442

0.830–0.838

The chemical name should be changed to Oct‐(2E)‐en‐4‐ol and the CAS number to 20125‐81‐9 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1 and 2)

02.252

1841

4102

67845‐50‐5

4,8‐Dimethyl‐3,7‐nonadien‐2‐ol (b)

Liquid

C11H20O

168

Insoluble

Soluble

70 (2.6 hPa)

IR NMR

95% (racemate and mixture of E/Z stereoisomers: 50–80% (E))

1.465–1.473

0.860–0.870

07.015

1120

2707

149

110‐93‐0

6‐Methylhept‐5‐en‐2‐one (b)

Liquid

C8H14O

126.19

Insoluble

Miscible

173.1

NMR

97%

1.435–1.445

0.846–0.854

07.044

1124

3417

666

625‐33‐2

Pent‐3‐en‐2‐one (b)

Liquid

C5H8O

84.12

Slightly soluble

Miscible at room temp.

122

NMR

At least 75% (E)‐isomer

25% (Z)‐isomer

1.433–1.437

0.860–0.865

The chemical name should be changed to pent‐(3E)‐en‐2‐one and the CAS number to 3102‐33‐8 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1)

07.048

1125

3352

718

2497‐21‐4

4‐Hexen‐3‐one (b)

Liquid

C6H10O

98.15

Slightly soluble

Miscible

93 (195 hPa)

NMR

90–95% (E)‐isomer

4–5% (Z)‐isomer

1.437–1.443

0.855–0.861

The chemical name should be changed to hex‐(4E)‐en‐3‐one and the CAS number to 50396‐87‐7 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1)

07.069

1121

3059

2053

4433‐36‐7

Tetrahydro‐pseudo‐ionone (b)

Liquid

C13H24O

196.33

Insoluble

Miscible

234

NMR

95% (racemate)

1.449–1.455

0.865–0.875

07.081

1148

3515

2312

4312‐99‐6

Oct‐1‐en‐3‐one (b)

Liquid

C8H14O

126.20

Insoluble

Miscible

37–38 (3 hPa)

NMR

96%

1.428–1.439

0.813–0.819

07.082

1129

3603

2313

4643‐27‐0

Oct‐2‐en‐4‐one (b)

Liquid

C8H14O

126.20

Insoluble

Miscible at room temp.

81 (26–27 hPa)

IR NMR

90–91% (E)‐isomer

5–6% (Z)‐isomer

1.440–1.446

0.835–0.842

The chemical name should be changed to oct‐(2E)‐en‐4‐one and the CAS number to 22286‐99‐3 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1)

07.099

1134

3363

11143

1604‐28‐0

6‐Methylhepta‐3,5‐dien‐2‐one (b)

Liquid

C8H12O

124.18

Almost insoluble

Miscible

190

NMR

96% (mixture of E/Z stereoisomers: 60–90% (E))

1.528–1.537

0.895–0.899

07.100

1119

3365

11150

3240‐09‐3

5‐Methylhex‐5‐en‐2‐one (b)

Liquid

C7H12O

112.17

Insoluble

Miscible

148–149

NMR

97%

1.428–1.433

0.862–0.868

07.101

1131

3368

11853

141‐79‐7

4‐Methylpent‐3‐en‐2‐one (b)

Liquid

C6H10O

98.14

Slightly soluble

Miscible

126.76

NMR

95%

1.442–1.447

0.862–0.868

07.102

1147

3382

11179

1629‐58‐9

Pent‐1‐en‐3‐one (b)

Liquid

C5H8O

84.12

Insoluble

Miscible

68–70 (260 hPa)

NMR

97%

1.417–1.422

0.842–0.848

07.104

1126

3399

11093

4643‐25‐8

Hept‐2‐en‐4‐one (b)

Liquid

C7H12O

112.17

Slightly soluble

Miscible

156–157

IR NMR

95% (E)‐isomer

1.440–1.445

0.845–0.852

The chemical name should be changed to hept‐(2E)‐en‐4‐one and the CAS number to 22286‐99‐3 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1)

07.105

1127

3400

11094

1119‐44‐4

Hept‐3‐en‐2‐one (b)

Liquid

C7H12O

112.17

Slightly soluble

Miscible

162

NMR

95% (E)‐isomer

1.439–1.448

0.841–0.847

The chemical name should be changed to hept‐(3E)‐en‐2‐one and the CAS number to 5609‐09‐6 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1)

07.106

1132

3409

11149

5166‐53‐0

5‐Methylhex‐3‐en‐2‐one (b)

Liquid

C7H12O

112.17

Insoluble

Miscible

77.5 (65 hPa)

NMR

95% (E)‐isomer

1.437–1.441

0.838–0.843

The chemical name should be changed to 5‐Methylhex‐(3E)‐en‐2‐one and the CAS number to 1821‐29‐0 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1)

07.107

1128

3416

11170

1669‐44‐9

Oct‐3‐en‐2‐one

At least 94%; secondary component

4‐6% 4‐octen‐2‐one

Liquid

C8H14O

126.19

Insoluble

Miscible at room temp.

75–79 (26 hPa)

NMR

90–91% (E)‐isomer

3–4% (Z)‐isomer

SC: 4‐6% 4‐octen‐2‐one

1.445–1.449

0.834–0.839

The chemical name should be changed to Oct‐(3E)‐en‐2‐one and the CAS number to 18402‐82‐9 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1)

07.114

1123

3442

11206

762‐29‐8

6,10,14‐Trimethylpentadeca‐5,9,13‐trien‐2‐one (b)

Liquid

C18H30O

262.44

Soluble

Miscible

147–148

NMR

96% (mixture of (5E,9E)‐, (5Z,9Z)‐, (5E,9Z)‐ and (5Z,9E)‐isomers)

1.478–1.483

0.885–0.895

07.121

1130

3532

11751

10519‐33‐2

Dec‐3‐en‐2‐one (b)

Liquid

C10H18O

154.25

Almost insoluble

Miscible at room temp.

125–126

NMR

95% (E)‐isomer

1.446–1.452

0.809–0.813

The chemical name should be changed to Dec‐(3E)‐en‐2‐one and the CAS number to 18402‐84‐1 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1)

07.123

1122

3542

11088

3796‐70‐1

Geranyl acetone (b)

Liquid

C13H22O

194.32

Slightly soluble

Miscible

247

NMR

95% (E)‐isomer

1.463–1.471

0.861–0.867

Chemical name in the Union List should be changed to (E)‐geranyl acetone

07.139

1133

3761

81925‐81‐7

5‐Methylhept‐2‐en‐4‐one (b)

Liquid

C8H14O

126.19

Slightly soluble

Miscible

86–87 (78 hPa)

NMR

91–95% (E)‐isomer

1–5% (Z)‐isomer

(racemate)

1.440–1.445

0.845–0.852

The chemical name should be changed to 5‐Methylhept‐(2E)‐en‐4‐one and the CAS number to 102322‐83‐8 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1).

07.151

1118

3966

11056

928‐80‐3

Decan‐3‐one (b)

Liquid

C10H20O

156.27

Insoluble

Miscible

204‐205

NMR

97%

1.421–1.427

0.820–0.830

07.177

1135

3868

33046‐81‐0

7‐Methyl‐3‐octenone‐2

At least 94%; secondary components

2‐4% 7‐methyl‐4‐octen‐2‐one, 5,6‐ dimethyl‐3‐hepten‐2one and 3‐nonen‐2‐one

Liquid

C9H16O

140.2

Slightly soluble

Miscible

198

n.a.

IR NMR MS

% (E)‐isomer

SC: 2‐4% 7‐methyl‐4‐octen‐2‐one, 5,6‐dimethyl‐3‐hepten‐2‐one and 3‐nonen‐2‐one

1.446–1.451

0.838–0.847

The chemical name should be changed to 7‐Methyl‐oct‐(3E)‐en‐2‐one and the CAS number to 1004754‐77‐1 to reflect the stereochemical configuration. (Documentation provided to EFSA nr: 1).

07.188

1136

3955

11163

14309‐57‐0

Non‐3‐en‐2‐one (b)

Liquid

C9H16O

140.22

Insoluble

Miscible at room temp.

198

IR MS

95% (E)‐isomer

1.443–1.452

0.843–0.846

The chemical name should be changed to Non‐(3E)‐en‐2‐one and the CAS number to 18402‐83‐0 to reflect the stereochemical configuration.

(Documentation provided to EFSA nr: 1).

07.190

1848

4405

65213‐86‐7

Octa‐1,5‐dien‐3‐one (b)

Liquid

C8H12O

124.18

Practically insoluble or insoluble

Freely soluble

169

MS

95% (mixture of E/Z stereoisomers: 60–90% (E))

1.438–1.444

0.823–0.829

07.240

1156

4000

13019‐20‐0

2‐Methylheptan‐3‐one (b)

Liquid

C8H16O

128.2

Insoluble

Miscible

158–160

NMR

98%

1.408–1.413

0.811–0.821

07.244

1138

4001

20859‐10‐3

(6E)‐Methyl‐3‐hepten‐2‐one (b)

Liquid

C8H14O

126.2

Insoluble

Miscible at room temp.

170–180

NMR

96% (E)‐isomer

< 1% (Z)‐isomer

1.438–1.447

0.840–0.850

07.247

1139

4008

30086‐02‐3

(E,E)‐3,5‐Octadien‐2‐one (b)

Liquid

C8H12O

124.2

Insoluble

Miscible

220

NMR

95%

1.508–1.516

0.880–0.890

07.249

1155

4022

927‐49‐1

Undecan‐6‐one (b)

Liquid

C11H22O

170.3

Insoluble

Miscible

228

NMR

97%

1.424–1.430

0.826–0.836

07.256

1137

3969

817‐88‐9

(E) & (Z)‐4,8‐Dimethyl‐3,7‐nonadiene‐2‐one 94% Secondary component: 3–4% 4,8–dimethyl‐3,7‐nonadien‐2‐ol

Liquid

C11H18O

166.26

Insoluble

Freely soluble

200–201

n.a.

IR NMR

% (Mixture of E/Z stereoisomers: 60–90% (E))

Secondary component: 3–4% 4,8‐dimethyl‐3,7‐nonadien‐2‐ol

1.473–1.477

0.869–0.875

09.281

1836

3582

11716

2442‐10‐6

Oct‐1‐en‐3‐yl acetate (b)

Liquid

C10H18O2

170.25

Practically insoluble or insoluble

Freely soluble

80 (2 hPa)

NMR

97% (racemate)

1.418–1.428

0.865–0.886

09.282

1837

3612

16491‐54‐6

Oct‐1‐en‐3‐yl butyrate (b)

Liquid

C12H22O2

198.32

Practically insoluble or insoluble

Freely soluble

81 (0.46 hPa)

IR NMR MS

95% (racemate)

1.418–1.428

0.865–0.875

09.657

1146

4012

10761

626‐38‐0

1‐Methylbutyl acetate (b)

Liquid

C7H14O2

130.2

Insoluble

Partially Soluble

135

NMR

98% (racemate)

1.369‐1.400

0.862‐0.866

09.658

1142

3893

10763

60415‐61‐4

1‐Methylbutyl butyrate (b)

Liquid

C9H18O2

158.24

Insoluble

50% Soluble

185–186

IR NMR MS

99% (racemate)

1.409–1.415

0.862–0.868

09.923

1144

3981

39026‐94‐3

Hept‐2‐yl butyrate (b)

Liquid

C11H22O2

186.3

Insoluble

Miscible

210

NMR

98% (racemate)

1.413–1.417

0.855–0.860

09.924

1143

3980

5921‐83‐5

3‐Heptyl acetate (mixture of R and S) (b)

Liquid

C9H18O2

158.2

Insoluble

Miscible

185

NMR

98% (racemate)

1.406–1.414

0.858–0.867

09.925

1145

4007

60826‐15‐5

Nonan‐3‐yl acetate (b)

Liquid

C11H22O2

186.3

Insoluble

Miscible

225

NMR

98% (racemate)

1.416–1.423

0.854–0.864

09.936

1847

4103

91418‐25‐6

4,8‐Dimethyl‐3,7‐nonadien‐2‐yl acetate (b)

Liquid

C13H22O2

210

Insoluble

Soluble

75–83 (3 hPa)

IR NMR

95% (racemate and mixture of E/Z stereoisomers: 50–80% (E))

1.451–1.459

0.890–0.900

UL: Union List.

a

JECFA (2002a), EFSA CEF Panel (2016a); Documentation provided to EFSA nr: 1 and 2.

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 1,013.25 hPa, if not otherwise stated.

f

At 20°C, if not otherwise stated.

g

At 25°C, if not otherwise stated.

h

Secondary components.