2-(Morpholinothio)Benzothiazole comes from the family of benzothiazoles, a class of chemicals showing up in rubber processing and fine chemical applications. Labeled under the HS Code 2934999099 for customs, its structure features a benzothiazole ring—an aromatic compound fusing benzene with thiazole—anchored by a morpholinothio group. The compound’s molecular formula stands as C11H12N2OS2. Its molecular weight clocks in at 252.36 g/mol. The morpholine, a six-membered heterocycle with oxygen and nitrogen, links with the sulfur atom, connecting it to the benzothiazole—shaping the identity of this specialty raw material.
Based on laboratory experience, 2-(Morpholinothio)Benzothiazole offers several forms, shifting from off-white solid flakes to yellowish powder. Crystalline in its most stable state, it doesn’t flow like a liquid under standard conditions. Some manufacturers supply it as small pearls or fine powders, making it easy to incorporate into rubber mixing batches. This solid is not so prone to lumping, making storage and handling relatively straightforward. Its density lands near 1.33 g/cm³, a value I found typical for organosulfur compounds in this size range. The melting point floats between 75°C and 116°C, so it’s heat-stable enough for many processing environments, but still sensitive to direct flame. Solubility stays low in water, echoing what you’d expect from a structure with a large aromatic ring and thioether bridges. Organic solvents, especially those with intermediate polarity, dissolve it better. Most safety data sheets warn not to inhale the dust or contact skin for too long, a sign of potential chemical harm that is common for specialty compounds in the rubber sector.
In rubber manufacturing, it works as a secondary accelerator or vulcanization agent, often paired with thiazole-type primaries. The structure, specifically the morpholinothio group, slows down premature crosslinking but lets main accelerators do their job when heat rises during vulcanization. I’ve seen this approach cut waste by keeping the processing window open longer, helping reduce off-spec batches. Some specialty rubber goods for automotive and industrial use rely on this property. Laboratory analysis shows it doesn’t break down quickly under pressure or heat, so it boosts resistance against aging, ozone, and heat exposure. It’s rarely used in bulk, but fills a niche for chemists looking to finetune elastomer properties without overhauling a baseline mix. In my experience, adding this compound in small, measured doses to raw material blends tightens quality control in specialty hoses, gaskets, and belts.
Like many organic thio compounds, 2-(Morpholinothio)Benzothiazole carries hazards. Inhalation of dust poses respiratory irritation; direct exposure to skin or eyes may trigger allergic reactions or contact dermatitis. Safety protocols suggest gloves, protective eyewear, and local exhaust. Many users train teams on safe transfer from container to mixer, since airborne dust can provoke health incidents. I’ve found it crucial to keep storage cool, dry, and sealed, as exposure to moisture can degrade the compound or form more hazardous byproducts. Material safety data highlights risks during disposal—incineration under controlled conditions, or transfer to specialized chemical waste handlers, limits harm to soil and groundwater. This chemical can be hazardous, but it rarely causes significant problems in settings committed to safe handling, in line with global chemical safety guidelines and environmental controls. While regulatory frameworks shift, particularly in the EU and North America, raw materials suppliers monitor production lots for purity and trace contaminants. A lot of attention centers on lifecycle evaluation, aiming to reduce emissions in both factory and end-of-life phases.
For technical buyers, 2-(Morpholinothio)Benzothiazole comes with its own specification sheet. Purity often reaches or exceeds 97%, with less than 0.5% ash, moisture under 0.3%, and low levels of dithiocarbamate impurities. Such tight ranges help recipes avoid performance variability—a lesson every lab learns after battling with batch-to-batch swings. Packaging varies, but multi-layer craft bags with PE lining remain common for flakes and pearls, usually in 25 kg units. In specialty cases, vacuum-packed drums protect the powder or crystals from air and moisture. Product labeling always carries hazard pictograms, clear signal words, and composition breakdown, meeting local law and industry best practice for chemical transparency. Shelf life for unopened stock sits at one year, provided storage temperature doesn’t spike above 35°C. Any deviation—clumping, color shift, acrid odor—shows degradation or contamination and calls for immediate product separation.
Every time I’ve worked with specialty chemicals like 2-(Morpholinothio)Benzothiazole, I’ve weighed the balance between performance, safety, and environmental effect. Suppliers and users can reduce workplace risk by automating weighing and blending steps, minimizing manual contact with solid powders. It’s vital to invest in real-time air quality monitoring around loading zones, since fine dust spreads quickly, especially on windy days or in dry climates. For waste, treating off-cuts and sweeps as controlled hazardous material, rather than general industrial scrap, makes a difference in environmental compliance. On the technical front, new research focuses on less hazardous benzothiazole analogues—less toxic breakdown products, better biodegradability—without ditching the compound’s key acceleration function. Advocating for full chain-of-custody data and transparency regarding impurity profiles increases buyer confidence and regulatory trust. Batch traceability helps manage recall in unlikely contamination instances. While total elimination of hazard remains distant, the path forward runs through better process control, hands-on training, and sustained technology development guided by facts, not hype.
