19-Norprogesterone brings a lot to the table in the field of chemistry. As a synthetic steroid, its structure drops the 19-methyl group found in regular progesterone. This doesn't sound like much: just a missing chemical group. But the change tweaks how the compound behaves in both lab settings and real-world processes. The molecular formula of 19-Norprogesterone reads as C20H30O2, giving it a molar mass close to 302.45 g/mol. That number points to a fairly dense molecule. Unlike more volatile organics, this one feels stable in hand, not prone to quick breakdown under typical storage.
People who handle raw materials notice small details. 19-Norprogesterone usually appears as a white or off-white crystalline solid. The texture can vary—a batch might look flaky, sometimes it turns up as a fine powder, or even as compact pearls, depending on how it is processed. Drop the temperature, and its firmness holds; warm it gently and it doesn’t rush to melt or degrade. Its melting range sits near 213-215°C. The density checks in near 1.09 g/cm³, suggesting it lingers on a balance pan longer than lighter molecules.
The structure sums up the heart of what makes 19-Norprogesterone different. Remove one carbon from the backbone, and suddenly hormones in biology start treating the molecule differently. The three six-membered rings and one five-membered ring define its subgroup in the steroid family. The ketone and the positions of the double bonds give it its “personality”—the way it interacts with other chemicals, solvents, and living systems. Density, solubility, and reactivity all flow from this blueprint. It is mostly insoluble in water—shows much better behavior in organic solvents like ethanol, acetone, or chloroform. Producers who want to dissolve it in a liter of solution need to reach for the right solvent.
Anyone working with chemicals takes a pause to check two things—how safe is this material, and does it come with hazards? 19-Norprogesterone, like many steroids, requires respect. Breathing in the dust or letting it linger on your skin is unwise. It's not radioactive or prone to explode, but direct exposure for long periods may cause harm. Gloves, goggles, and proper ventilation reduce risks. Its hazardous profile is mostly chemical: avoid swallowing, inhalation, and eye contact. Accidentally getting some on your lab bench isn't likely to start a fire, but it could lead to contamination. Based on its structure, some regulations treat it as a controlled substance. Shipments use HS Code 29372900, marking it as a steroid derivative. It's not as dangerous as common industrial solvents, yet taking shortcuts with safety often leads to long-term regret.
In the raw materials world, folks see 19-Norprogesterone in bulk powders, crystalline flakes, solid chunks, and occasionally as a solution in an organic solvent. The packaging ranges from tiny glass vials meant for testing, up to kilo-sized industrial drums. Because of the biological activity, this compound attracts attention from pharmaceutical manufacturers. While not as well known as other progestogens, certain labs rely on its properties for hormone research and as a starting point for more complex syntheses.
The part not enough people talk about involves supply chain headaches. Sourcing pure 19-Norprogesterone, especially one that fits precise specifications, drags on time and cost. Impurities creep in during synthesis. Sometimes what arrives on the loading dock doesn't match the certificate of analysis. A fix calls for tighter oversight at each step—start with better raw feedstock, stick to chemical processes known for cleaner output, and set up testing at every stage. Another pain point comes from environmental safety. Chemical waste from steroid synthesis needs proper disposal, not just a quick flow down the drain. Factories should invest in small-scale treatment plants or partner with waste management firms that handle organic solvents safely. Traditional dry labs could exchange best practices online about handling and storing rare chemicals like this. Honest reporting about trouble spots helps everyone downstream.
Chemicals like 19-Norprogesterone don’t sit idle in a bottle. People who buy, sell, or use this material need all the facts—molecular makeup, density, structure, safe handling, and crystal form. Mistakes happen when information gets glossed over. More comprehensive data and real communication between producers and labs cut down on dangerous shortcuts. Respect for risks, clear storage rules, and hard data about each batch let people use these materials in smarter ways. Small changes in documentation translate into safer, more reliable results up and down the chain, from supplier to scientist.
