Supplied at either 10ppm (0.001%) or 100ppm (0.01%) in DPG-Triacetin
 
Hallowed holy grail Marijuana and cannabis note. The actual molecular basis of the smell in real life: grapefruit synthetic overdoses look like a badly drawn cartoon compared to even traces of this most powerful raw material on the site. 
 
Two dilutions are available - I suggest starting with the 10ppm solution first if you have suspicious neighbors. 
 
You might think it's priced highly for a small, diluted molecule, but I've spent years tracking this one down and finally settling on a supplier. Diluting it down further is both necessary and a massive pain (full odour barrier suit, two pairs of gloves - I must remember to take a selfie next time!) 
 
The price you pay here covers all that faff + a rather nifty two-stage containment vessel so that you can use this molecule but also remain confident that it won't contaminate your other materials.