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Asulam
- русский язык имя
- английское имяAsulam
- CAS №3337-71-1
- CBNumberCB3244887
- ФормулаC8H10N2O4S
- мольный вес230.24
- EINECS222-077-1
- номер MDLMFCD00055534
- файл Mol3337-71-1.mol
химическое свойство
Температура плавления | 142-144°C (dec.) |
плотность | 1.4655 (rough estimate) |
показатель преломления | 1.5690 (estimate) |
температура хранения | 0-6°C |
растворимость | DMSO (Slightly), Methanol (Slightly) |
пка | 4.82(at 25℃) |
цвет | Pale Brown to Light Brown |
Растворимость в воде | 5g/L(room temperature) |
Мерк | 13,862 |
БРН | 2697523 |
LogP | -0.270 |
Рейтинг продуктов питания EWG | 1 |
FDA UNII | 0Y5ASM7P5S |
Справочник по химии NIST | Asulam(3337-71-1) |
Система регистрации веществ EPA | Asulam (3337-71-1) |
Коды опасности | Xn |
Заявления о рисках | 22 |
WGK Германия | 3 |
RTECS | FD1190000 |
кода HS | 29350090 |
Банк данных об опасных веществах | 3337-71-1(Hazardous Substances Data) |
Токсичность | LD50 in rats, mice, dogs, rabbits (mg/kg): >5000, >5000, >5000, >2000 orally; in rats (mg/kg): >1200 dermally (Brockelsby) |
рисовальное письмо(GHS)
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рисовальное письмо(GHS)
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сигнальный язык
предупреждение
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вредная бумага
H302:Вредно при проглатывании.
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оператор предупредительных мер
P273:Избегать попадания в окружающую среду.
P391:Ликвидировать просыпания/проливы/утечки.
P501:Удалить содержимое/ контейнер на утвержденных станциях утилизации отходов.
Asulam химические свойства, назначение, производство
Описание
Asulam is a sulfonamide and can be formulated as a sodium salt. It is very water soluble and is a very systemic herbicide following foliar and root uptake, owing to its physicochemical properties (Table 1). The Log P (Kow) of 1.01 and pKa of 4.82 are optimal for phloem mobility in the plant (4). These properties contribute to the herbicidal effectiveness against perennial weeds where translocation to underground meristematic organs is essential for effective control.Химические свойства
Light Brown SolidИспользование
Carbamate herbicide; folic acid biosynthesis inhibitor.Определение
ChEBI: A carbamate ester that is methyl carbamate substituted by a (4-aminophenyl)sulfonyl group at the nitrogen atom.Угроза здоровью
Low order of toxicity; no adverse effect onskin reported; ingestion of large dose couldproduce cholinergic effects.LD50 oral (rat): 2000 mg/kg.
Фармаколо?гия
Asulam-induced growth inhibition of carrot cell cultures was reversed by 4-aminobenzoic acid (8), and depletion of folate derivatives in treated plants (7) provides further evidence that the synthesis of folic acid is the primary target of asulam. Furthermore, asulam is structurally related to sulfonilamide and to sulfonamide antimicrobial drugs, which are competitive inhibitors of 7,8-dihydropteroate synthase (DHPS) (5,9).Экологическая судьба
Soil. It is not persistent in soils since its half-life is approximately 6–14 days (Hartley and Kidd, 1987). The short persistence time is affected by soil temperature and moisture content. The half-life of asulam in a heavy clay soil having a moisture content of 34% and maintained at 20°C was 7 days (Smith and Walker, 1977). In soil, sulfanilamide was reported as a product of hydrolysis. In non-sterile soils, this compound further degraded to unidentifiable products (Smith, 1988) which may include substituted anilines (Bartha, 1971).Photolytic. The reported photolytic half-lives for asulam in water at pH 3 and 9 were 2.5 and 9 days, respectively (Humburg et al., 1989)
Chemical/Physical. Forms water-soluble salts (Hartley and Kidd, 1987). When heated to 75°C, asulam decomposed to sulfanilic acid, carbamic acid and sulfanilamide. At 90°C, 4-nitro- and 4-nitrosobenzene sulfonic acids were released (Rajagopal et a
Asulam запасные части и сырье
Asulam поставщик
поставщик | телефон | страна | номенклатура продукции | благоприятные условия |
---|---|---|---|---|
+undefined17712220823 | China | 616 | 58 | |
18871490254 | CHINA | 28180 | 58 | |
+86-592-6051114 +8618959220845 |
China | 6387 | 58 | |
86-13657291602 | CHINA | 22968 | 58 | |
+86-023-6139-8061 +86-86-13650506873 |
China | 39916 | 58 | |
+8618523575427 | China | 49392 | 58 | |
+86-0371-86658258 +8613203830695 |
China | 29825 | 58 | |
18503026267 | CHINA | 9641 | 58 | |
+86-13806087780 | China | 17367 | 58 | |
+1-781-999-5354 +1-00000000000 |
United States | 19892 | 58 |