# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/alexander-r-todd
# Generated: 2026-09-07T20:57:37.526Z

schema: https://schema.org/Person
url: "https://fame.am/person/alexander-r-todd"
name: "Alexander R. Todd"
slug: "alexander-r-todd"
description: "He worked out the chemistry of the molecules that carry genetic instructions — the building blocks of DNA and RNA — and won the Nobel for cracking how nucleotides actually fit together."
tagline: "British biochemist (1907-1997)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Alexander_Todd_Nobel.jpg"
gender: "male"
country:
  name: "United Kingdom"
  isoCode: "GB"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1907-10-02"
deathDate: "1997-01-10"
livingStatus: "DECEASED"
scores:
  popularity:           53.19
  momentum:             0
  historical:           23.36152133333334
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
tags:
  - name: "Scientists"
    slug: "scientists"
  - name: "Scientist"
    slug: "scientist"
  - name: "Chemistry"
    slug: "chemistry"
  - name: "Politics"
    slug: "politics"
  - name: "Physics"
    slug: "physics"
  - name: "United Kingdom"
    slug: "united-kingdom"
  - name: "Europe"
    slug: "europe"
  - name: "20th Century"
    slug: "20th-century"
sources:
  - url: "https://en.wikipedia.org/wiki/Alexander_R._Todd"
    title: "Wikipedia"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q157242"
    title: "Wikidata"
    type:  "WIKIDATA"
  - url: "https://pantheon.world/profile/person/Alexander%20R.%20Todd"
    title: "Pantheon 2.0"
    type:  "DATABASE"
  - url: "https://azb.wikipedia.org/wiki/%D9%84%D8%B1%D8%AF_%D8%AA%D8%A7%D8%AF"
    title: "لرد تاد"
    type:  "WIKIPEDIA"
  - url: "https://az.wikipedia.org/wiki/Aleksander_Robertus_Todd"
    title: "Aleksander Robertus Todd"
    type:  "WIKIPEDIA"
  - url: "https://be.wikipedia.org/wiki/%D0%90%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%8D%D1%80_%D0%A0%D0%B0%D0%B1%D0%B5%D1%80%D1%82%D1%83%D1%81_%D0%A2%D0%BE%D0%B4"
    title: "Александэр Рабертус Тод"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%90%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%8A%D1%80_%D0%A2%D0%BE%D0%B4"
    title: "Александър Тод"
    type:  "WIKIPEDIA"
  - url: "https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%B2%E0%A7%87%E0%A6%95%E0%A7%8D%E0%A6%B8%E0%A6%BE%E0%A6%A8%E0%A7%8D%E0%A6%A1%E0%A6%BE%E0%A6%B0_%E0%A6%9F%E0%A6%A1"
    title: "আলেক্সান্ডার টড"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Alexander_Robertus_Todd"
    title: "Alexander Robertus Todd"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/Alexander_Robertus_Todd"
    title: "Alexander Robertus Todd"
    type:  "WIKIPEDIA"
  - url: "https://da.wikipedia.org/wiki/Alexander_Robertus_Todd"
    title: "Alexander Robertus Todd"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Alexander_Robertus_Todd"
    title: "Alexander Robertus Todd"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%91%CE%BB%CE%B5%CE%BE%CE%AC%CE%BD%CF%84%CE%B5%CF%81_%CE%A4%CE%BF%CE%BD%CF%84"
    title: "Αλεξάντερ Τοντ"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Alec_Todd"
    title: "Alec Todd"
    type:  "WIKIPEDIA"
  - url: "https://eo.wikipedia.org/wiki/Alexander_Todd"
    title: "Alexander Todd"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Alexander_Robert_Todd"
    title: "Alexander Robert Todd"
    type:  "WIKIPEDIA"
  - url: "https://et.wikipedia.org/wiki/Alexander_Robertus_Todd"
    title: "Alexander Robertus Todd"
    type:  "WIKIPEDIA"
  - url: "https://eu.wikipedia.org/wiki/Alexander_R._Todd"
    title: "Alexander R. Todd"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D9%84%D8%B1%D8%AF_%D8%AA%D8%A7%D8%AF"
    title: "لرد تاد"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/Alexander_R._Todd"
    title: "Alexander R. Todd"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Alexander_Robert_Todd"
    title: "Alexander Robert Todd"
    type:  "WIKIPEDIA"
  - url: "https://gd.wikipedia.org/wiki/Alexander_Todd"
    title: "Alexander Todd"
    type:  "WIKIPEDIA"
  - url: "https://gl.wikipedia.org/wiki/Alexander_Robertus_Todd"
    title: "Alexander Robertus Todd"
    type:  "WIKIPEDIA"
  - url: "https://hak.wikipedia.org/wiki/Alexander_R._Todd"
    title: "Alexander R. Todd"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%90%D7%9C%D7%9B%D7%A1%D7%A0%D7%93%D7%A8_%D7%98%D7%95%D7%93"
    title: "אלכסנדר טוד"
    type:  "WIKIPEDIA"
  - url: "https://hu.wikipedia.org/wiki/Alexander_R._Todd"
    title: "Alexander R. Todd"
    type:  "WIKIPEDIA"
  - url: "https://it.wikiquote.org/wiki/Alexander_Robertus_Todd"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://ar.wikipedia.org/wiki/%D8%A3%D9%84%D9%83%D8%B3%D9%86%D8%AF%D8%B1_%D8%AA%D9%88%D8%AF"
    title: "ألكسندر تود"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D8%A7%D9%84%D9%83%D8%B3%D9%86%D8%AF%D8%B1_%D8%AA%D9%88%D8%AF"
    title: "الكسندر تود"
    type:  "WIKIPEDIA"

# bio (long form, separated for readability)
bio: |
  Alexander Robertus Todd was born on 2 October 1907 in Britain. He trained as a biochemist and turned his attention to nucleotides and nucleosides, the small molecular units that string together into the long chains of genetic material. His research mapped their structure and showed how to synthesize them in the lab, work that extended to nucleotide coenzymes — molecules that help enzymes function. In 1957 the Nobel Prize for Chemistry recognized those contributions. He was later made Baron Todd. He died on 10 January 1997.