Grapefruit infused 1/2g 5 pack pre-rolls. Chem D Strain Chem D is a well-known, powerful cannabis strain, often referred to as a GOAT (Greatest Of All Time) by its fans. It's a hybrid strain, possibly a phenotype of Chemdawg discovered by Chemdog in 2001. While its exact lineage is debated, it's speculated to be a cross of OG Kush and Sour Diesel. Chem D is known for its strong effects, including creative, uplifted, and calm sensations. Its aroma is described as having garlic, gas, and pine notes.