19-Norandrostenediol, known to chemists by its formula C19H28O2, stands out as a synthetic anabolic-androgenic steroid. The substance features a molecular weight of 288.43 g/mol. It usually comes across as a solid, sometimes as a white or off-white crystalline powder, and sometimes as flakes or pearls depending on how it’s processed. If you look at its most basic features, the molecule includes an androstane steroid core, with a Nor group shoved in the 19th position, changing both its chemical action and the way people talk about its use in athletic or scientific settings. Commercial players source it as a raw material, often dealing in lots ranging from grams to kilograms, and organize shipments with HS Code 2937290090, flagging it under steroidal chemicals.
A basic glance at the bottle, and you’ll notice 19-Norandrostenediol looks like a fine powder or tiny crystals. Commercial densities tend to land between 1.02 and 1.10 g/cm³. It dissolves better in organic solvents—think ethanol, chloroform—than in water, and this comes from its hydrophobic steroid backbone. Drop it into cold water, and you mostly see a suspension, not solution. In labs and industrial contexts, chemists prefer the powder for accurate weighing, but large batches move as flakes or pearls due to handling needs. Nobody ever describes this stuff as a true liquid at standard temperature. Under heat, it can melt to liquid or decompose. Some testing labs use a solution form, dissolving it in alcohol to ensure precise dosing during research.
The backbone of 19-Norandrostenediol mirrors the core skeleton of testosterone, but with a twist—removal of the methyl group at carbon 19, which shifts both the shape and the biological action of the molecule. This structure change distinguishes it sharply from plain androstenediol. The four-ring steroid structure brings the typical planar steroid look. You read about this same feature in biochemistry textbooks and see diagrams dotted across patent filings. Most important, the chemical formula C19H28O2 tells you each sample has 19 carbon atoms, 28 hydrogen atoms, and two oxygens, all locked into the molecule’s framework.
In raw material form, 19-Norandrostenediol lands in research labs and, less commonly in recent years, in supplement formulations. It once sold widely as a bodybuilding aid, often ending up in powders for oral ingestion. WADA and other anti-doping agencies classify it as a banned substance, since it metabolizes into nandrolone, an anabolic steroid. Its inclusion in athletic supplements opened a can of worms about transparency and product safety—users would sometimes test positive for steroids after taking a formula with poorly disclosed ingredient lists. Many countries responded with heavy regulation to keep the substance out of mainstream supplement markets, steering it back towards chemical warehouses and research benchwork.
Nobody picks up a bag of 19-Norandrostenediol without safety training. Classified as potentially harmful, it can irritate skin and eyes. Inhalation of fine powder risks respiratory irritation. Fact: many countries label it as a hazardous chemical—think EU CLP, OSHA, and other regulatory bodies. Users handle it with gloves, goggles, and sometimes a mask, tossing the material into fume hoods or vented workspaces. Direct ingestion or improper use brings toxicological risks—cardiovascular, endocrine, reproductive—matching the long-term health risks associated with other steroids. Disposal runs through chemical waste channels, labeled as hazardous rather than general laboratory rubbish. The legal status of the chemical shifts by country; selling it for human consumption can lead to prosecution depending on local drug control laws.
Manufacturers and distributors rank 19-Norandrostenediol as a sensitive chemical, so every shipment requires clear labeling, secure packaging, and paperwork outlining its status and potential uses. Chemists, athletes, and public health workers all face tough decisions about this material: do you keep it as a restricted research tool, or fight ongoing attempts to sneak it into sport supplements? Lots of headaches spin out of gaps in regulation and differences in international law. Smarter public outreach and tighter import controls can short-circuit accidental or intentional misuse, but real progress happens when companies open up about ingredient sources, testing protocols, and product purity. Vigilance matters—for industry workers and for the wider public who might not realize the fine distinction between banned performance-enhancers and legitimate laboratory reagents.
