# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/hans-von-pechmann
# Generated: 2026-08-13T18:38:00.939Z

schema: https://schema.org/Person
url: "https://fame.am/person/hans-von-pechmann"
name: "Hans von Pechmann"
slug: "hans-von-pechmann"
description: "Freiherr Hans von Pechmann was a German chemist, renowned for his discovery of diazomethane in 1894. Pechmann condensation and Pechmann pyrazole synthesis. He also first prepared 1,2-diketones, acetonedicarboxylic acid, methylglyoxal and diphenyltriketone; established the symmetrical structure of anthraquinone."
tagline: "German chemist (1850–1902)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Hans_von_Pechmann.jpg?width=1200"
gender: "male"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1850-04-01"
deathDate: "1902-04-19"
livingStatus: "DECEASED"
scores:
  popularity:           43.85
  momentum:             0
  historical:           13.34409733333333
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://uk.wikipedia.org/wiki/%D0%93%D0%B0%D0%BD%D1%81_%D1%84%D0%BE%D0%BD_%D0%9F%D0%B5%D1%85%D0%BC%D0%B0%D0%BD"
    title: "Ганс фон Пехман"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D9%87%D8%A7%D9%86%D8%B2_%D9%81%D9%88%D9%86_%D8%A8%D9%8A%D8%AA%D8%B4%D9%85%D8%A7%D9%86"
    title: "هانز فون بيتشمان"
    type:  "WIKIPEDIA"
  - url: "https://azb.wikipedia.org/wiki/%D9%87%D8%A7%D9%86%D8%B3_%D9%81%D9%88%D9%86%E2%80%8C%D9%BE%D8%B4%D9%85%D8%A7%D9%86"
    title: "هانس فون‌پشمان"
    type:  "WIKIPEDIA"
  - url: "https://bn.wikipedia.org/wiki/%E0%A6%B9%E0%A6%BE%E0%A6%A8%E0%A7%8D%E0%A6%B8_%E0%A6%AB%E0%A6%A8_%E0%A6%AA%E0%A7%87%E0%A6%96%E0%A6%AE%E0%A6%BE%E0%A6%A8"
    title: "হান্স ফন পেখমান"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Hans_Freiherr_von_Pechmann"
    title: "Hans Freiherr von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Hans_von_Pechmann"
    title: "Hans von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%A7%CE%B1%CE%BD%CF%82_%CF%86%CE%BF%CE%BD_%CE%A0%CE%AD%CF%87%CE%BC%CE%B1%CE%BD"
    title: "Χανς φον Πέχμαν"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Hans_von_Pechmann"
    title: "Hans von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Hans_von_Pechmann"
    title: "Hans von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D9%87%D8%A7%D9%86%D8%B3_%D9%81%D9%88%D9%86%E2%80%8C%D9%BE%D8%B4%D9%85%D8%A7%D9%86"
    title: "هانس فون‌پشمان"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Hans_von_Pechmann"
    title: "Hans von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/Hans_von_Pechmann"
    title: "Hans von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/Hans_von_Pechmann"
    title: "Hans von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Hans_von_Pechmann"
    title: "Hans von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://sk.wikipedia.org/wiki/Hans_von_Pechmann"
    title: "Hans von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://sv.wikipedia.org/wiki/Hans_von_Pechmann"
    title: "Hans von Pechmann"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q72095"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump