p-Phenylenediamine - Wikipedia
p-Phenylenediamine (PPD) is an organic compound with the formula C 6 H 4 (NH 2) 2. This derivative of aniline is a white solid, but samples can darken due to air oxidation. [1] It is …
Para-phenylenediamine allergy: current perspectives on ...
Para-phenylenediamine (PPD) is the commonest and most well-known component of hair dyes. Oxidative hair dyes and dark henna temporary tattoos contain PPD. Individuals may be …
Paraphenylenediamine and hair dye contact allergy - DermNet
Paraphenylenediamine (PPD) is a chemical substance that is widely used as a permanent hair dye. PPD is used in hair dye because it is a permanent dye that gives a natural look, and the …
p-Phenylenediamine | C6H4(NH2)2 | CID 7814 - PubChem
p-Phenylenediamine is primarily used as a dye intermediate and as a dye (e.g., hair dyes and dyes used for dyeing furs), as well as a photographic developing agent and a chemical …
Paraphenylenediamine and related chemicals as allergens ...
Paraphenylenediamine (PPDA) is a chemical with strong sensitizing properties used for dyeing of hair and textiles. Paraphenylenediamine can cross-react, resulting in allergy to other related …
P-Phenylenediamine Hair Dye Allergy and Its Clinical ...
We investigated 105 patients with hair dye allergy with a positive PPD patch test result to identify the clinical characteristics of hair dye allergy and to clarify the relationships between hair dye …
Paraphenylenediamine Toxicity - StatPearls - NCBI Bookshelf
2024年10月7日 · Paraphenylenediamine is an aromatic amine found in Kala Pathar ("black stone"). [1] [2] In its pure form, paraphenylenediamine is a white crystal that oxidizes to a …
Allergic Contact Dermatitis Due to Paraphenylenediamine: An ...
2018年9月1日 · Paraphenylenediamine (PPD) is an amine that is mainly used as an ingredient in hair dyes and henna tattoos. The incidence of allergic contact dermatitis to PPD is increasing, …
p-Phenylenediamine is primarily used as a dye intermediate and as a dye. Acute (short-term) exposure to high levels of p-phenylenediamine may cause severe dermatitis, eye irritation and …
Hair Dye Allergy: Symptoms, Treatment, and Color Alternatives
2023年5月30日 · Natural hair dyes may be a possible solution. Most cases of allergic contact dermatitis stemming from exposure to hair dye are caused by an ingredient called …