# Russell Earl Marker

> Russell Earl Marker was an American chemist who invented the octane rating system when he was working at the Ethyl Corporation. Later in his career, he went on to found a steroid industry in Mexico when he successfully made semisynthetic progesterone from chemical constituents found in Mexican yams in a process known as Marker degradation. This eventually led to the development at Syntex of the combined oral contraceptive pill and synthetic cortisone – and to the development of the Mexican barbasco trade.

*American chemist (1902-1995)*

**Canonical URL:** https://fame.am/person/russell-earl-marker

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Born:** 1902-03-12
- **Died:** 1995-03-03
- **Status:** deceased
- **Gender:** male

## Bio

Imported from discovery source: wikidata-dump

## Fame
- **Popularity score:** 42.7 / 100
- **Momentum:** 4.4 / 100  (trend: STABLE)
- **Historical depth:** 5.9 / 100
- **Now attention:** 0.0 / 100
- **Source confidence:** 35.0 / 100
- **Profile completeness:** 45.0 / 100

## Sources
- [Russell Earl Marker](https://en.wikipedia.org/wiki/Russell_Earl_Marker)
- [روسل ماركر](https://ar.wikipedia.org/wiki/%D8%B1%D9%88%D8%B3%D9%84_%D9%85%D8%A7%D8%B1%D9%83%D8%B1)
- [Russell Marker](https://de.wikipedia.org/wiki/Russell_Marker)
- [羅素·厄爾·馬克](https://zh.wikipedia.org/wiki/%E7%BE%85%E7%B4%A0%C2%B7%E5%8E%84%E7%88%BE%C2%B7%E9%A6%AC%E5%85%8B)
- [Russell Earl Marker](https://fr.wikipedia.org/wiki/Russell_Earl_Marker)
- [ラッセル・マーカー](https://ja.wikipedia.org/wiki/%E3%83%A9%E3%83%83%E3%82%BB%E3%83%AB%E3%83%BB%E3%83%9E%E3%83%BC%E3%82%AB%E3%83%BC)
- [Wikidata](https://www.wikidata.org/wiki/Q7381482)

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Generated by Fame.am · https://fame.am/person/russell-earl-marker