3 Dynamos Behind Syntex's Success

When I started Syntex Pharmaceuticals in Britain nearly a quarter of a century ago, the triumvirate to whom I reported in Mexico were all youngish scientists themselves, and all paper millionaires by their own remarkable efforts. The chairman of the corporation, George Rosenkranz, not only was one of the founders of the modern steroid industry, but he also had seen himself through the Eidgenössiche Technische Hochschule in Zurich by playing soccer for the Grasshoppers, acting at the Stadt

Written byDavid Moreau
| 4 min read

Register for free to listen to this article
Listen with Speechify
0:00
4:00
Share

The chairman of the corporation, George Rosenkranz, not only was one of the founders of the modern steroid industry, but he also had seen himself through the Eidgenössiche Technische Hochschule in Zurich by playing soccer for the Grasshoppers, acting at the Stadtsbuehne and playing international table tennis. Apart from speaking at least five languages, he was a formidable bridge player, serving on the United States team against redoubtable international experts such as Omar Sharif, who led for the Egyptian team.

Rosenkranz, Number 2 was Alejandro Zaffaroni, who had already invented the Zaffaroni method of paper chromatography of steroids and made a profound contribution to the Syntex discoveries of the time, which included fluocinolone acetonide (known worldwide as Synalar), the oral progestins that made the birth-control pill possible, non-virilizing androgens such as oxymetholone (still used for the treatment of aplastic anemia), paramethasone and many others. Since that golden time, he has ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to digital editions of The Scientist, as well as TS Digest, feature stories, more than 35 years of archives, and much more!
Already a member? Login Here

Meet the Author

Published In

Share
February 2026

A Stubborn Gene, a Failed Experiment, and a New Path

When experiments refuse to cooperate, you try again and again. For Rafael Najmanovich, the setbacks ultimately pushed him in a new direction.

View this Issue
Human-Relevant In Vitro Models Enable Predictive Drug Discovery

Advancing Drug Discovery with Complex Human In Vitro Models

Stemcell Technologies
Redefining Immunology Through Advanced Technologies

Redefining Immunology Through Advanced Technologies

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Beckman Coulter Logo
Conceptual multicolored vector image of cancer research, depicting various biomedical approaches to cancer therapy

Maximizing Cancer Research Model Systems

bioxcell

Products

Sino Biological Logo

Sino Biological Pioneers Life Sciences Innovation with High-Quality Bioreagents on Inside Business Today with Bill and Guiliana Rancic

Sino Biological Logo

Sino Biological Expands Research Reagent Portfolio to Support Global Nipah Virus Vaccine and Diagnostic Development

Beckman Coulter

Beckman Coulter Life Sciences Partners with Automata to Accelerate AI-Ready Laboratory Automation

Refeyn logo

Refeyn named in the Sunday Times 100 Tech list of the UK’s fastest-growing technology companies