# History of aspirin **URL:** \ **Category:** General\ **Created:** [August 13, 2026, 2:08pm UTC](https://www.medboundhub.com/t/history-of-aspirin/22495 "2026-08-13T14:08:18Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Stuti](https://yyz1.discourse-cdn.com/flex033/user_avatar/www.medboundhub.com/stuti/32/5502_2.png) [@Stuti](https://www.medboundhub.com/u/Stuti)\ **Post date:** [August 13, 2026, 2:08pm UTC](https://www.medboundhub.com/t/history-of-aspirin/22495/1 "2026-08-13T14:08:18Z")
On this day in science, 10 August 1897, Bayer chemist Felix Hoffmann recorded the preparation of a chemically pure and stable form of acetylsalicylic acid (ASA), the compound that would later be marketed as Aspirin. ### The chemistry of acetylation During the summer of 1897, **Hoffmann** was exploring the modification of physiologically active molecules by introducing acetyl groups (CH3CO-), part of a broader medicinal-chemistry strategy aimed at altering properties such as potency and tolerability. Bayer had already used related chemistry in developing medicines such as **phenacetin** , introduced in 1888. ### From willow bark to salicylates The medicinal properties of willow had been recognised for centuries. During the 19th century, chemists increasingly unravelled the chemistry behind these effects. **Salicin** was isolated from willow, while Hermann Kolbe later developed a synthetic route to salicylic acid, helping make salicylates available on an industrial scale. Salicylic acid was **effective** against pain and fever, but the relatively large doses then used, particularly for **rheumatic** conditions, could be difficult to tolerate. According to the traditional story, Hoffmann was motivated partly by his father’s difficulty tolerating salicylates. Acetylating salicylic acid produced **acetylsalicylic acid** , which proved sufficiently useful and tolerable for Bayer todevelop commercially. It was launched under the name **Aspirin in 1899**. Interestingly, acetylsalicylic acid itself was not completely new: earlier chemists had prepared the compound. Bayer’s important advance was producing a chemically pure, stable form suitable for pharmaceutical development. _The same chemistry, a very different outcome_ Within weeks, Hoffmann also prepared **diacetylmorphine** by acetylating morphine. The compound had actually been synthesized previously by C. R. Alder Wright in 1874, but Bayer later developed and marketed it under another now-famous name: **Heroin**. _Two molecules._ _One medicinal-chemistry strategy._ _Two profoundly different pharmaceutical legacies._ _MBH/PS_ ---
**Author:** ![Vedanti\_02](https://yyz1.discourse-cdn.com/flex033/user_avatar/www.medboundhub.com/vedanti_02/32/5450_2.png) [@Vedanti\_02](https://www.medboundhub.com/u/Vedanti_02)\ **Post date:** [August 13, 2026, 2:19pm UTC](https://www.medboundhub.com/t/history-of-aspirin/22495/2 "2026-08-13T14:19:02Z")
What stands out to me most is that drug discovery isn’t only about finding a new molecule—it is also about understanding how changing its structure changes what it does in the body. ---
**Author:** ![RatnaK](https://yyz1.discourse-cdn.com/flex033/user_avatar/www.medboundhub.com/ratnak/32/5481_2.png) [@RatnaK](https://www.medboundhub.com/u/RatnaK)\ **Post date:** [August 13, 2026, 4:42pm UTC](https://www.medboundhub.com/t/history-of-aspirin/22495/3 "2026-08-13T16:42:11Z")
Well, different molecules, different chemistries, different effects on the body. So acetylation did to salicylic tand morphine. This is really fascinating in chemistry how a small change can have great impact. ---
**Author:** ![Dr.Mandru](https://yyz1.discourse-cdn.com/flex033/user_avatar/www.medboundhub.com/dr.mandru/32/5619_2.png) [@Dr.Mandru](https://www.medboundhub.com/u/Dr.Mandru)\ **Post date:** [August 13, 2026, 6:05pm UTC](https://www.medboundhub.com/t/history-of-aspirin/22495/4 "2026-08-13T18:05:32Z")
Informative post! Isn’t that amazing to understand and learn how one molecule functions can be dictate by its structure. Thanks for sharing.