Table 2.

Identity of the substances and data on purity

EU register name	Flavis no	JECFA specification minimum %a	Assay %
			Average	Range
Oct‐1‐en‐3‐ol	02.023	96	99.6	99.5–99.8
Pent‐1‐en‐3‐ol	02.099	98	99.3	98.8–99.7
Oct‐1‐en‐3‐one	07.081	96	99.2b	99.0–99.5
Oct‐1‐en‐3‐yl acetate	09.281	95	99.4	99.0–99.8
5‐Methylhept‐2‐en‐4‐one	07.139	98	99.2	99.2–100
Isopulegol	02.067	95c	97.5	95.6–100
Isopulegone	07.067	95	n.a.d	n.a.
α‐Damascone	07.134	98e	98.7	98.2–99.9

^aFAO (2006).

^bFour batches; the fifth batch is diluted to 50 wt. % in 1‐octen‐3‐ol.

^cTotal sum of isomers; < 1% citronellal.

^dNo data available for this substance.

^eSum of cis and trans isomers, 92–96% trans, 4–8% cis isomer.