Overview
Clomazone is a systemic herbicide belonging to the isoxazolidinone chemical class. It was first introduced in the 1980s and has since become a key tool in modern agriculture for pre-emergence weed control. The compound works by inhibiting carotenoid biosynthesis in susceptible plants, leading to chlorophyll degradation and plant death. As a selective herbicide, clomazone is particularly effective against annual grasses and broadleaf weeds while being relatively safe for many crops. Its unique mode of action makes it valuable for resistance management programs when used in rotation with other herbicides.
Physical and Chemical Properties
Clomazone presents as colorless to pale yellow crystals with a characteristic odor. It has moderate volatility, which contributes to its soil activity but may require incorporation in some conditions. The compound is stable under normal temperatures but decomposes at its boiling point. Chemically, clomazone is notable for its stability in both acidic and neutral conditions, though it may hydrolyze in strongly alkaline environments. Its low water solubility makes it relatively immobile in most soil types, reducing the risk of groundwater contamination while maintaining efficacy in the root zone of target weeds.
Main Applications
Clomazone is primarily used as a pre-emergence herbicide in several major crops. In soybean production, it controls problematic weeds like foxtail, crabgrass, and morning glory. Cotton growers value its effectiveness against nutsedge and pigweed species. The herbicide is typically applied to soil before planting or immediately after planting but before crop emergence. Application rates vary from 0.25 to 0.75 kg active ingredient per hectare depending on soil type and target weeds. Many formulations combine clomazone with other herbicides to broaden the spectrum of weed control.
Safety and Storage
As with all agricultural chemicals, proper handling of clomazone is essential. Personal protective equipment including gloves, goggles, and respirators should be worn during mixing and application. The compound is classified as harmful if swallowed and causes eye irritation. Storage requirements include keeping containers tightly closed in a cool, well-ventilated area away from food and feed. Bulk storage areas should have containment measures to prevent environmental contamination in case of spills. Shelf life is typically 2-3 years when stored properly in original containers.
B2B Procurement Guide
When sourcing clomazone commercially, buyers should verify the CAS number (81777-89-1) to ensure product authenticity. Technical grade material typically has a purity of 95-98%, while formulations may contain 36-50% active ingredient. Key procurement considerations include minimum order quantities (often 1 metric ton for technical material), available formulations (EC, WP, or SC), and packaging options (drums or bulk). Request certificates of analysis and safety data sheets from suppliers. Price negotiations should account for purity, formulation type, and order volume.
Related Manufacturers
- 主营：三氯乙酸、三氯乙酸甲酯、三氯乙酸乙酯、异丁酰氯、五硫化二磷、四丁基溴化铵、2-氯丙酸、2-氯丙酸乙酯、2-氯丙酸甲酯、偏铝酸钠、亚磷酸、磷酸三乙酯、磷酸三丁酯、磷酸三辛酯
- 主营：磺酰胺、氧化铌、除醛剂、硅化镱、基硅油、成核剂、酞菁钴、甘氨酸铬、光学树脂、鼠李糖脂、甲磺酸铋、氧化亚铁、封端硅油、左旋乳酸)、六水氯化钇、己基磺酸盐、恩诺沙星钠、二聚季戊四醇、聚醚硫酸酯钠、恶唑啉交联剂、洗手凝胶增稠剂、生物活性玻璃粉、氰基丙烯酸乙酯、脱硫脱氢催化剂
- 主营：三氟啶磺隆、啶嘧磺隆、噻苯隆、嘧硫草醚、甲嘧磺隆、二氢茉莉酸丙酯、调环酸钙、S-诱抗素、呋虫胺、磷杂环戊烯MPPO、吲哚乙酸、赤霉素、6-二羟基吲哚、3-甲基-1-苯基-、铬酸二苯胍、杀螺胺、吡虫啉
- 主营：乙酰丙酮氧
- 主营：磺隆类除草剂、化学原料、生物缓冲剂、阻燃剂
- 主营：三异氰酸酯
- 主营：天然香兰素、乙基香兰素葡萄糖苷、二甲基紫脲酸、3-二羟基丙酮、吡罗克酮乙醇胺、棕榈油酸、7-羟基香豆素、肝素钠、4-氰基苯硼酸、6-二羟基吲哚、双甲mi、脱氧野尻霉素、乙二醇碳酸薄荷酯、月桂基甜菜碱、化妆品级甘油、L-乳酸薄荷酯、薄荷醇 PCA 酯、赤霉酸、乳酸、T6P
- 主营：异噁草酮、白蜡树素、百两金素、半齿泽兰素
- 主营：化学试剂、分析试剂、标准试剂、实验试剂
- 主营：甘氨酸、阻燃剂、胶黏剂、蒽甲酸、退除剂、中性红、3282-24-4、肉桂醛、退镍液、乙氧基、环氧胶、2768-02-7、阻燃毯、7377-08-4、4865-84-3、亮氨酸、抛光盐、5471-63-6、戊二酸、4355-11-7、插入管、丙二胺、碳化硼、蓝钨粉、胶粘剂
- 主营：杀菌剂、单宁酸、抗氧剂、异恶草酮、交联剂、咪唑钾、中间体、咪唑、绝缘材料、氧化钛铝、离子液体、日化原料、苯基膦酸、氟甲基磺、2-吲哚甲酸、甲基咪唑啉、乳化稳定剂、油漆催干剂
- 主营：异噁唑草酮、化工中间体、生物缓冲剂、实验试剂助剂
- 主营：除草剂、杀虫剂、杀菌剂
- 主营：生物缓冲剂、苯甲酸系列、农药、异噁唑草酮、合成中间体
- 主营：吡咯酯、麦芽酚、铃兰醛、藜芦酮、吴茱萸碱、聚谷氨酸、3-吲哚甲醛、农药中间体、7-羟基香豆素、4-羟基香豆素、6-氰基-2-萘酚、5-甲氧基色胺、6-甲基香豆素、β-氯代苯乙烷