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Contact allergy to the active ingredients of Kathon CG in the guinea pig.
TLDR
Preservative Kathon CG (K-CG) is a commercial preparation, consisting of the two active ingredients (a.i.) and 5-chloro-2-methyl-4-isothiazolin-3-one and also of other components, demonstrated to be a strong sensitizer and 243-K- CG a weak sensitizers. Expand
Contact allergy to the preservative Kathon® CG
TLDR
Patients tested with serial dilution of Kathon® CG reacted to to 100 ppm, 8 to 30 ppm and 2 to 10 ppm, but the concentration of 1000 ppm of Rathon®, CG was irritant in some cases, but 300 ppm was not irritant. Expand
Contact allergic reactions to diphenylthiourea and phenylisothiocyanate in PVC adhesive tape
28 patients reacting to a PVC adhesive tape used in routine patch testing gave positive reactions to diphenylthiourea (DPTU) and to phenylisothiocyanate (PITC) in low concentrations. DPTU is a heatExpand
Occurrence of para-aminobenzoic acid and benzocaine as contaminants in sunscreen agents of para-aminobenzoic acid type.
TLDR
Methods for separating PABA and the 5 mentioned PABA esters by thin layer chromatography and high pressure liquid chromatography are presented and high levels of benzocaine were detected in batches of ethyl 4-bis(hydroxypropyl)-aminobenzoate. Expand
Contact allergy to phenol‐formaldehyde resins
TLDR
A battery of phenol‐formaldehyde resins should be used for screening purposes, since patch testing with the paratertiary‐butyl phenol-formaldehyde resin is not sufficient to identify patients with contact allergy to phenol •formaldehyde Resins. Expand
Studies on purity and stability of photopatch test substances
TLDR
19 photo substances were studied by thin‐layer chromatography (TLC) as fresh solutions, and during storage under various conditions, and Trichlorocarbanilide was the only substance shown to be impure from the start. Expand
Demonstration of Kathon® CG in some commercial products
TLDR
There were no differences between “leave on” and “rinse off” products concerning the relative number of products containing Kathon® CG and the concentrations of the preservative. Expand
Contact allergy to allergy to allyl glycidyl ether present as an impurity in 3‐glycidyloxypropyltrimethoxysilane, a fixing additive in silicone and polyurethane resins
We present a 43‐year‐old man who worked in the plastics industry and who suffered from an occupational dermatitis on the hands and forearms. He was found to be allergic to an epoxy silane compoundExpand
Contact allergy to allyl glycidyl ether present as an impurity in 3-glycidyloxypropyltrimethoxysilane, a fixing additive in silicone and polyurethane resins.
We present a 43-year-old man who worked in the plastics industry and who suffered from an occupational dermatitis on the hands and forearms. He was found to be allergic to an epoxy silane compoundExpand
Contact allergy to the active ingredients of Kathon® CG
TLDR
The preservative Kathon1 CG is a commercial preparation, consisting of 2 active ingredients and other components, and patch testing was performed with serial dilutions, and with 5 chromatographically separated fractions. Expand
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