Example of new and old names of organic compound

Here are some examples of old and new names of organic compounds:

1. Aspirin

Old name: Acetylsalicylic acid (ASA) New name: Aspirin

2. Penicillin

Old name: Penicillium notatum extract New name: Penicillin G (or benzylpenicillin)

3. Insulin

Old name: Isletin New name: Insulin (human insulin is now known as Humulin or Novolin)

4. Tetracycline

Old name: 7-Chlorotetracycline New name: Tetracycline

5. Sulfonamide

Old name: M & B 693 (a brand name) New name: Sulfanilamide (or sulfonamide)

6. Quinine

Old name: Cinchona alkaloid New name: Quinine

7. Codeine

Old name: Codein New name: Codeine

8. Morphine

Old name: Morphine base New name: Morphine

9. Ephedrine

Old name: Ephedra extract New name: Ephedrine

10. Digitalis

Old name: Foxglove extract New name: Digoxin (or digitoxin)

11. Chloroform

Old name: Trichloromethane New name: Chloroform

12. Benzene

Old name: Benzol New name: Benzene

13. Acetaminophen

Old name: N-Acetyl-p-aminophenol New name: Acetaminophen

14. Ibuprofen

Old name: 2-(4-Isobutylphenyl)propanoic acid New name: Ibuprofen

15. Caffeine

Old name: Theine New name: Caffeine

These are just a few examples of the many organic compounds that have had their names changed over time. The new names are often shorter, more descriptive, and easier to pronounce than the old names.