The common chemical name for aspirin is acetylsalicylic acid. Its systematic name is 2-(acetyloxy) benzoic acid. This is the information according to Wikipedia and does accurately describe the ACTIVE ingredient in a bottle of Bayer aspirin.
load (plural loads) A burden; a weight to be carried. I struggled up the hill with the heavy load in my rucksack. (figuratively) A worry or concern to be endured, especially in the phrase a load off one's mind.
1a : loading 1b : an act of bailing, dipping, or ladling. 2 : cargo, freight. a bill of lading is a document issued by a carrier that lists goods being shipped and specifies the terms of their transport.