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EC number: 219-372-2
CAS number: 2425-85-6
Slight erythema or erythema with edema were observed in patients with
pigmented cosmetic dermatitis in patch or photopatch tests with C.I.
Pigment Red 3 after application for 48 or 72 hours. Positive reactivity
was 34.2% (13/38) (Sugai et al.1977). The reddening and swelling of the
skin were seen in five of 155 patients with cosmetic dermatitis in a
48-h path tests with 5% C.I. Pigment Red 3 in polyethylene glycol;
slight reddening was seen in another 25 of the patients (MJCDRG 1978).
In a patch test, negative reaction was observed with 1% Pigment Red 3
(in petrolatum) in the skin of patients who were suffered from
dermatitis caused by Brilliant Lake Red R. No skin reactions were seen
in 28 healthy young female volunteers in a 48 hour patch test with 1%
C.I. Pigment Red 3 in petrolatum (Kgzuka et al.1980).
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