Definitions
Wiktionary
- n. organic chemistry The para- isomer of phenylenediamine
Examples
“February denial ain't just a river in egypt paraphenylenediamine rhymes with ...”
“Burgeon Verger: paraphenylenediamine rhymes with ...”
“A chemical found in most hair dyes called paraphenylenediamine (or p-phenylenediamine, or PPD), is another common allergen.”
“Nuclei were counterstained with DAPI and slides were coverslipped with paraphenylenediamine.”
“The darker dyes still contain PPD [paraphenylenediamine], the contentious if effective hair-dye chemical that can cause allergic dermatitis, but in other ways, INOA is a seen as a major advance.”
“But Betty does contain PPD - that's paraphenylenediamine, the chemical found in almost all hair dyes.”
“1977 The ACS opposed regulating black or dark brown hair dyes, based on paraphenylenediamine in spite of clear evidence of its risks of non-Hodgkins lymphoma, besides other cancers.”
Samuel S. Epstein: Reckless Indifference Of The American Cancer Society To Cancer Prevention
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