What is the definition of 1564?

Common directory name

C:/1564/

The term is called 1,5-Cyclodecadiene.

1564. 1,5-Cyclodecadiene, 1,5-dimethyl-8-(1-methylethenyl)-, (1E,5Z,8S)-; 675105-92-7

Alright, let's break this down into the absurdly cool and the downright weird, shall we?

First up, we've got '1564. 1,5 Cyclodecadiene, 1,5 Dimethyl 8-(Methylethenyl) — think of it as a molecular version of a superhero, but with a side of chemistry wizardry. This is a cyclic compound, which basically means it's a ring made out of eight carbon atoms, but instead of being boring like regular chains, this one's got a 1,5 position (that's like saying it has two arms sticking out at the same time) where it attaches some extra friends – in this case, a little bit of dimethyl (two methyl groups, which are like the superhero's tiny sidekicks) and an ethyl group (another little carbon buddy, but with a "methylethenyl" twist, like a molecular ice cream sundae). The '(1E,5Z,8S)' part is just a fancy way of saying the carbon atoms are arranged in a specific order, like a molecular fingerprint that's almost unrecognizable to human eyes but super important in the world of organic chemistry. Now, onto the edgy sentence: "In the lab, the researchers decided to test this bizarre molecular masterpiece, hoping it would turn into a new life form — or at least a new type of molecularly-aware coffee." Here we go, mixing the science with some existential dread. Imagine a world where every coffee cup is a portal to alternate dimensions, and this weird chemical compound decides to break free to create a caffeine-fueled reality distortion. Yikes!