Australian Approved Name (AAN): Iron oxide yellow
Common names and synonyms: E172; CI77492; Pigment Yellow 42
Organic/Inorganic: Inorganic
Molecular formula: FeO(OH).xH2O
Molecular weight: 88.85 (anhydrous)
Conversions (% iron): 62.85
RDI for Iron as per NHMRC:
Infants – 0-6 months – 0.2mg/day (AI)
Infants – 7-12 months – 11mg/day
Children – 1-3 years – 9mg/day
Children – 4-8 years – 10mg/day
Boys – 9-13 years – 8mg/day
Boys – 14-18 years – 11mg/day
Girls – 9-13 years – 8mg/day
Girls – 14-18 years – 15mg/day
Men – 8mg/day
Women – 19-50 years – 18mg/day
Women – >50 years – 8mg/day
Pregnancy – 27mg/day
Lactation – 14-18 years – 10mg/day
Lactation – 19-50 years – 9mg/day
Warnings and Restrictions: Permitted for use only as a colour in medicines limited to topical and oral routes of administration.
When used in undivided preparations for internal use and the concentration of iron oxide in the medicine is more than 1%, it is considered part of the total iron content.
When used in divided preparations for internal use, the concentration in the medicine must be no more than 10 mg per dosage unit.
Allowable purpose of the ingredient: Excipient
TGA reference: Colour Index (Society of Dyers and Colourists) (modified)