Table B.1.

Summary table on specifications data for flavouring substances in FGE.67Rev3 (for chemical structures see Appendix H) that are included in the Union List. Substances which are no longer supported by industry and which have been deleted from the EU Union list [FL‐no 13.029, 13.030, 13.052, 13.061, 13.092, 13.107, 13.123, 13.191] are referenced in the previous version, FGE.67Rev2 (EFSA CEF Panel, 2015a)

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	Solubilitycc Solubility in ethanold	Boiling point, °Ce Melting point, °C ID test Assay minimum (isomers distribution/secondary components)	Refrac. Indexf Spec. gravityg
13.006 1517 2865 362 7149‐32‐8	Phenethyl 2‐furoate	b	Liquid C13H12O3 216.24	Insoluble Soluble in oils Soluble	275 n.a. NMR 96%	1.585–1.593 1.136–1.142
13.021 1516 2070 2080 7779‐66‐0	Isopentyl 4‐(2‐furan)butyrate	b	Liquid C13H20O3 224.30	Insoluble soluble	263‐265 n.a. NMR 95%	1.551–1.555 0.975–0.981
13.022 1513 2435 2091 10031‐90‐0	Ethyl 3(2‐furyl)propionate	b	Solid C9H12O3 168.19	Very slightly soluble Soluble	n.a. 24‐25 NMR 95%	n.a. n.a.
13.023 1515 2071 2092 7779‐67‐1	Isopentyl 3‐(2‐furan)propionate	b	Liquid C12H18O3 210.27	Insoluble Soluble	258 n.a. NMR 96%	1.549–1.557 0.987–0.993	Name in the Union List to be changed to isopentyl 3‐(2‐furyl)propionate
13.024 1514 2198 2093 105‐01‐1	Isobutyl 3‐(2‐furyl)propionate	b	Liquid C11H16O3 196.25	Very slightly soluble Soluble	105 (4 hPa) n.a. NMR 96%	1.531‐1.537 1.007‐1.013
13.031 751 3128 2247 4265‐16‐1	2‐Benzofurancarboxaldehyde	b	Solid C9H6O2 146.15	Insoluble Slightly soluble	130‐131 (17hPa) 195‐198 (cryst) MS 96%	n.a. n.a.
13.045 1508 2496 11837 6975‐60‐6	1‐(2‐Furyl)‐propan‐2‐one	b	Liquid C7H8O2 124.14	Very slightly soluble Soluble (EFFA, 2014)	179‐180 n.a. NMR 97%	1.499–1.505 1.074–1.080
13.047 1518 2945 11842 623‐22‐3	Propyl 3‐(2‐furyl)acrylate	b	Liquid C10H12O3 180.20	Insoluble Soluble	119 (9 hPa) n.a. NMR 97%	1.520–1.526 1.071–1.077 (20°)	Mixture of isomers: 50–80% E and 20–50% Z (EFFA, 2014)
13.054 1503 3163 11653 1192‐62‐7	2‐Acetylfuran	b	Liquid C6H6O2 110.11	Very slightly soluble; Soluble slightly soluble in propylene glycol, vegetable oils	67 (13 hPa) n.a. IR 97%	1.505–1.510 1.102–1.107
13.058 1500 3307 10355 31704‐80‐0	3‐(5‐Methyl‐2‐furyl) butanal	b	Liquid C9H12O2 152.19	Insoluble Soluble Soluble in oils	88‐91 (16 hPa) n.a. NMR 98% Racemate	1.575–1.581 1.006–1.012
13.059 1491 3317 10966 3777‐69‐3	2‐Pentylfuran	b	Liquid C9H14O 138.21	Slightly soluble Soluble	58‐60 (13 hPa) n.a. NMR 99%	1.443–1.449 0.886–0.893
13.066 1506 3391 10921 10599‐70‐9	3‐Acetyl‐2,5‐dimethylfuran	b	Liquid C8H10O2 138.17	Slightly soluble Soluble Soluble in propylene glycol, most fixed oils	83 (14 hPa) n.a. NMR 99%	1.488–1.490 1.037–1.039	Substance not supported by industry (DG SANTE, 2020b)
13.069 1492 3401 10952 3777‐71‐7	2‐Heptylfuran	b	Liquid C11H18O 166.26	Insoluble Soluble	209‐210 n.a. NMR 99%	1.446–1.452 0.860–0.866
13.070 1512 3418 11180 14360‐50‐0	2‐Hexanoylfuran	b	Liquid C10H14O2 166.22	Slightly soluble Soluble	65‐67 (0.7 hPa) n.a. NMR 99%	1.490–1.496 0.992–0.998
13.074 1495 3535 11913 3782‐00‐1	2,3‐Dimethylbenzofuran	b	Liquid C10H10O 146.19	Insoluble Soluble Soluble in fats	96‐98 (20 hPa) n.a. NMR 97%	1.554–1.563 1.031–1.037
13.083 1504 3609 11038 1193‐79‐9	2‐Acetyl‐5‐methylfuran	b	Liquid C7H8O2 124.14	Slightly soluble Soluble Soluble in corn oil	71‐72 (10 hPa) n.a. IR NMR 99%	1.511–1.517 1.066–1.072 (20°)
13.101 1505 4071 ‐ 22940‐86‐9	2‐Acetyl‐3,5‐dimethylfuran	b	Liquid C8H10O2 138.17	Insoluble Soluble	195 18 MS 95%	1.494–1.500 1.041–1.047
13.103 1490 4081 10927 4466‐24‐4	2‐Butylfuran	b	Liquid C8H12O 124.18	Insoluble Soluble	139 n.a. MS 95%	1.444–1.450 0.884–0.890	Substance not supported by industry (DG SANTE, 2020a)
13.105 1507 4083 11045 4208‐57‐5	2‐Butyrylfuran	b	Liquid C8H10O2 138.17	Insoluble Soluble	195 n.a. NMR MS 95%	1.489–1.495 1.050–1.056
13.106 1493 4090 ‐ 83469‐85‐6	2‐Decylfuran	b	Solid C14H24O 208.34	Insoluble Soluble	n.a. 30 NMR 95%	n.a. n.a.
13.116 1523 4034 ‐ 55764‐22‐2	2,5‐Dimethyl‐3‐thioacetoxyfuran	b	Liquid C8H10O2S 170.23	Practically insoluble Soluble Soluble in diethylether	230 n.a. IR NMR MS 98%	1.527–1.533 1.137–1.143
13.138 1510 4120 11084 699‐17‐2	1‐(2‐Furyl)butan‐3‐one	b	Solid C8H10O2 138.17	Slightly soluble Soluble	n.a. 37 MS 95%	n.a. n.a.
13.148 1494 4174 ‐ 15186‐51‐3	3‐Methyl‐2(3‐methylbut‐2‐enyl)furan	b	Liquid C10H14O 150.22	Slightly soluble Soluble	70 (15 hPa) n.a. MS 98%	1.473–1.479 0.998–1.004
13.163 1509 4192 ‐ 3194‐17‐0	2‐Pentanoylfuran	b	Liquid C9H12O2 152.19	Slightly soluble Soluble	101 (13 hPa) n.a. MS 95%	1.486–1.492 1.009–1.015
13.190 1525 4056 ‐ 61295‐44‐1	3‐((2‐Methyl‐3‐furyl)thio)‐2‐butanone	b	Liquid C9H12O2S 184.25	Practically insoluble Soluble Soluble in ethyl acetate,triacetin	70 (1 hPa) n.a. IR NMR MS 99% (racemate)	1.510–1.516 1.104–1.110

n.a.: not applicable; FL‐No: FLAVIS number; 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,

^aJECFA, 2005, 2018 and documentation provided to EFSA (EFFA, 2014).

^bAt least 95% unless otherwise specified.

^cSolubility in water, if not otherwise stated.

^dSolubility in 95% ethanol, if not otherwise stated.

^eAt 1,013.25 hPa, if not otherwise stated.

^fAt 20°C, if not otherwise stated.

^gAt 25°C, if not otherwise stated.