This searchable database contains the summaries of all the evaluations of flavours, food additives, contaminants, toxicants and veterinary drugs JECFA has performed. Each summary contains basic chemical information, ADIs/TDIs, links to the most recent reports and monographs as well as to the specification database, and a history of JECFA evaluations. The database is searchable by partial name or CAS number, by first character (letter or symbol), or by functional class.

Includes all updates up to the 87th JECFA (June 2019).

List of chemicals with first character O

o-(ETHOXYMETHYL)PHENOL (No safety concern at current levels of intake when used as a flavouring agent)
o-(METHYLTHIO)PHENOL (No safety concern at current levels of intake when used as a flavouring agent)
o-ACETOXYANISOLE (No safety concern at current levels of intake when used as a flavouring agent)
o-ACETYLPHENOL (No safety concern at current levels of intake when used as a flavouring agent)
o-ANISALDEHYDE (No safety concern at current levels of intake when used as a flavouring agent)
o-ANISIC ACID (No safety concern at current levels of intake when used as a flavouring agent)
OAT GUM (NO ADI ALLOCATED)
OCIMEN QUINTOXIDE (No safety concern at current levels of intake when used as a flavouring agent)
OCIMENE (No safety concern at current levels of intake when used as a flavouring agent)
o-CRESOL (No safety concern at current levels of intake when used as a flavouring agent)
o-CRESOL ACETATE (No safety concern at current levels of intake when used as a flavouring agent)
o-CRESYL ISOBUTYRATE (No safety concern at current levels of intake when used as a flavouring agent)
o-CRESYL METHYL ETHER (No safety concern at current levels of intake when used as a flavouring agent)
o-CRESYL SALICYLATE (No safety concern at current levels of intake when used as a flavouring agent)
o-CRESYLIC ACETATE (No safety concern at current levels of intake when used as a flavouring agent)
o-CRESYLIC ACID (No safety concern at current levels of intake when used as a flavouring agent)
OCT-2(trans)-ENYL BUTYRATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTA-1,4-LACTONE (No safety concern at current levels of intake when used as a flavouring agent)
OCTADECENYL ALDEHYDE (No safety concern at current levels of intake when used as a flavouring agent)
OCTAHYDRO-2H-1-BENZOPYRAN-2-ONE (No safety concern at current levels of intake when used as a flavouring agent)
OCTAHYDROCOUMARIN (No safety concern at current levels of intake when used as a flavouring agent)
OCTAMETHYLENE DIMERCAPTAN (No safety concern at current levels of intake when used as a flavouring agent)
OCTANAL (0-0.1 mg/kg bw (1984))
OCTANAL DIMETHYL ACETAL (No safety concern at current levels of intake when used as a flavouring agent)
OCTANAL PROPYLENEGLYCOL ACETAL (No safety concern at current levels of intake when used as a flavouring agent)
OCTANOIC ACID (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL 2-FURANCARBOXYLATE (0-0.5 mg/kg bw)
OCTYL 2-FUROATE (0-0.5 mg/kg bw)
OCTYL 2-METHYLBUTYRATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL ACETATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL ALCOHOL (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL alpha-TOLUATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL BUTYRATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL CAPRYLATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL FORMATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL GALLATE (NO ADI ALLOCATED)
OCTYL HEPTANOATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL HEPTOATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL ISOBUTYRATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL ISOVALERATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL OCTANOATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL PHENYLACETATE (No safety concern at current levels of intake when used as a flavouring agent)
OCTYL PROPIONATE (No safety concern at current levels of intake when used as a flavouring agent)
Octylene (No safety concern at current levels of intake when used as a flavouring agent)
o-CUMENOL (No safety concern at current levels of intake when used as a flavouring agent)
OENANTHAL DIMETHYL ACETAL (No safety concern at current levels of intake when used as a flavouring agent)
OENANTHYLIDENE ACETONE (No safety concern at current levels of intake when used as a flavouring agent)
O-ETHYL S-(2-FURYLMETHYL)THIOCARBONATE (No safety concern at current levels of intake when used as a flavouring agent)
o-EUGENOL (No safety concern at current levels of intake when used as a flavouring agent)
o-HYDROXY BIPHENYL (0-0.4 mg/kg bw (1999))
o-HYDROXYANISOLE (No safety concern at current levels of intake when used as a flavouring agent)
o-HYDROXYBENZALDEHYDE (No safety concern at current levels of intake when used as a flavouring agent)
o-HYDROXYBENZOIC ACID (No safety concern at current levels of intake when used as a flavouring agent)
o-HYDROXYBENZYL ETHYL ETHER (No safety concern at current levels of intake when used as a flavouring agent)
o-HYDROXYDIHYDROCINNAMIC ACID LACTONE (No safety concern at current levels of intake when used as a flavouring agent)
o-HYDROXYTOLUENE (No safety concern at current levels of intake when used as a flavouring agent)
OIL OF NIOBE (No safety concern at current levels of intake when used as a flavouring agent)
OLAQUINDOX (None allocated due to genotoxicity of parent compound)
OLEALDEHYDE (No safety concern at current levels of intake when used as a flavouring agent)
OLEIC ACID (No safety concern at current levels of intake when used as a flavouring agent)
OLEIC ACID (AMMONIUM) (NO ADI ALLOCATED)
OLEIC ALDEHYDE (No safety concern at current levels of intake when used as a flavouring agent)
OLEORESIN OF PAPRIKA (No safety concern at current levels of intake when used as a flavouring agent)
OLEYL ACETATE (No safety concern at current levels of intake when used as a flavouring agent)
omega-6-HEXADECENLACTONE (No safety concern at current levels of intake when used as a flavouring agent)
omega-PENTADECALACTONE (No safety concern at current levels of intake when used as a flavouring agent)
o-METHIOXYBENZENETHIOL (No safety concern at current levels of intake when used as a flavouring agent)
o-METHIOXYTHIOPHENOL (No safety concern at current levels of intake when used as a flavouring agent)
o-METHOXYBENZOIC ACID (No safety concern at current levels of intake when used as a flavouring agent)
o-METHOXYCINNAMALDEHYDE (No safety concern at current levels of intake when used as a flavouring agent)
o-METHOXYPHENOL (No safety concern at current levels of intake when used as a flavouring agent)
o-METHOXYPHENOL PHENYLACETATE (No safety concern at current levels of intake when used as a flavouring agent)
o-METHOXYPHENYL ACETATE (No safety concern at current levels of intake when used as a flavouring agent)
o-METHOXYTOLUENE (No safety concern at current levels of intake when used as a flavouring agent)
o-METHYLANISOLE (No safety concern at current levels of intake when used as a flavouring agent)
o-METHYLCATECHOL (No safety concern at current levels of intake when used as a flavouring agent)
o-METHYLCATECHOL PHENYLACETATE (No safety concern at current levels of intake when used as a flavouring agent)
o-METHYLPHENOL (No safety concern at current levels of intake when used as a flavouring agent)
OMNIZOLE (0-0.1 mg/kg bw )
o-PHENYLGLYCOLIC ACID (No safety concern at current levels of intake when used as a flavouring agent)
o-PHENYLPHENOL (0-0.4 mg/kg bw (1999))
OPP (0-0.4 mg/kg bw (1999))
o-PROPYLPHENOL (No safety concern at current levels of intake when used as a flavouring agent)
ORANGE GGN (DECISION POSTPONED)
ORANGE I (NO ADI ALLOCATED)
ORANGE RN (NO ADI ALLOCATED)
ORATEL (0-7 µg/kg bw)
ORCHIL AND ORCEIN (NO ADI ALLOCATED)
ORIGANOL (No safety concern at current levels of intake when used as a flavouring agent)
ORIN LACTONE (No safety concern at current levels of intake when used as a flavouring agent)
ORLEAN (BIXIN: 0-12 mg/kg bw; NORBIXIN AND ITS SODIUM AND POTASSIUM SALT: 0-0.6 mg/kg bw (group ADI, expressed as norbixin))
ORP 178 (No safety concern at current levels of intake when used as a flavouring agent)
ortho-sec-BUTYLCYCLOHEXANONE (No safety concern at current levels of intake when used as a flavouring agent)
OTA ()
o-TOLUENETHIOL (No safety concern at current levels of intake when used as a flavouring agent)
o-TOLYL 2-METHYLPROPANOATE (No safety concern at current levels of intake when used as a flavouring agent)
o-TOLYL ACETATE (No safety concern at current levels of intake when used as a flavouring agent)
o-TOLYL ISOBUTYRATE (No safety concern at current levels of intake when used as a flavouring agent)
o-TOLYL MERCAPTAN (No safety concern at current levels of intake when used as a flavouring agent)
o-TOLYL SALICYLATE (No safety concern at current levels of intake when used as a flavouring agent)
OXANONE (No safety concern at current levels of intake when used as a flavouring agent)
OXDIHYDROCITRONELLAL (No safety concern at current levels of intake when used as a flavouring agent)
OXFENDAZOLE (0-7 µg/kg bw (group ADI))
OXOBOI (NO ADI ALLOCATED)
OXOLINIC ACID (NO ADI ALLOCATED)
OXYPHENYLON (No safety concern at current levels of intake when used as a flavouring agent)
OXYSTEARIN (WITHDRAWN (2001))
OXYTETRACYCLINE (0-0.03 mg/kg bw )