The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 6699Hybrid

Chemistry 24

Chemdog × 24K Gold or Tangie-derived

Chemistry 24 is a hybrid cultivar that emerged in legal markets in the early 2020s, recognized for its distinct Chem-forward profile. Typically testing around 22% THC with minimal CBD, this strain is often noted for its complex aroma and flavor, blending diesel and citrus notes.

EffectsUplifting
May help withStress
AromaDieselCitrusEarthyGrapefruitLemonOrangePepperPineRubberSavory

Appearance

Chemistry 24 plants generally grow to medium-tall heights with robust branching. The buds are dense and conical, covered in trichomes that give them a frosted appearance. They often exhibit minimal foxtailing, maintaining a compact structure, with pistils ranging from tangerine to rust-orange.

Aroma & Flavor

The aroma is characterized by a strong diesel and lemon-scented fuel scent, layered with notes of grapefruit, orange zest, and black pepper. Upon grinding, a savory kush backbone with hints of garlic and pine emerges. The flavor follows suit, offering a powerful jet-fuel start, followed by lemon-lime bitters, orange oil, grapefruit rind, and an earthy finish, with a sweet candied peel note on the exhale.

Effects

While specific effects are not detailed in the provided notes, strains with Chem and citrus lineage often provide a balanced experience. Consumers drawn to diesel and citrus profiles may find this cultivar appealing for its complex sensory attributes.

Terpenes & Cannabinoids

Chemistry 24 typically exhibits high THC levels, commonly in the 21-26% range, with CBD below 1%. Key terpenes often associated with its lineage include caryophyllene and limonene, frequently accompanied by myrcene and humulene. Some batches may also show terpinolene. The cannabinoid profile is generally rounded out by trace amounts of CBG.

Growing

This cultivar is considered production-friendly, with growers noting good resin production suitable for concentrates. It responds well to training, yielding uniform buds. The plant structure is described as OG-like, with dense, calyx-heavy buds and significant trichome coverage.

Origins & Lineage

Chemistry 24 is a modern hybrid with strong Chemdog ancestry, often crossed with a citrus-dominant strain like 24K Gold or a Tangie-derived line. This lineage is credited for its characteristic diesel and citrus notes, as well as its resin density and OG-like structure.

Frequently asked questions

What is the THC content of Chemistry 24?
Chemistry 24 typically has a THC content ranging from 21% to 26%.
What are the dominant terpenes in Chemistry 24?
Common terpenes include caryophyllene and limonene, often accompanied by myrcene and humulene.
What does Chemistry 24 smell and taste like?
It has a strong aroma of diesel and lemon fuel, with notes of grapefruit, orange zest, and pepper. The flavor is similar, with a jet-fuel start, citrus bitters, and an earthy finish.
What is the origin of Chemistry 24?
It is a modern hybrid believed to be a cross involving Chemdog and a citrus strain like 24K Gold or Tangie.