Asulam
|
|
Asulam 속성
- 녹는점
- 142-144°C (dec.)
- 밀도
- 1.4655 (rough estimate)
- 굴절률
- 1.5690 (estimate)
- 저장 조건
- 0-6°C
- 용해도
- DMSO(약간 용해됨), 메탄올(약간 용해됨)
- 산도 계수 (pKa)
- 4.82(at 25℃)
- 색상
- 옅은 갈색에서 밝은 갈색까지
- 수용성
- 5g/L(상온)
- Merck
- 13,862
- BRN
- 2697523
- LogP
- -0.270
- NIST
- Asulam(3337-71-1)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xn | ||
---|---|---|---|
위험 카페고리 넘버 | 22 | ||
WGK 독일 | 3 | ||
RTECS 번호 | FD1190000 | ||
HS 번호 | 29350090 | ||
유해 물질 데이터 | 3337-71-1(Hazardous Substances Data) | ||
독성 | LD50 in rats, mice, dogs, rabbits (mg/kg): >5000, >5000, >5000, >2000 orally; in rats (mg/kg): >1200 dermally (Brockelsby) |
그림문자(GHS): | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
신호 어: | Warning | ||||||||||||||
유해·위험 문구: |
|
||||||||||||||
예방조치문구: |
|
Asulam C화학적 특성, 용도, 생산
개요
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.화학적 성질
Light Brown Solid용도
Carbamate herbicide; folic acid biosynthesis inhibitor.정의
ChEBI: A carbamate ester that is methyl carbamate substituted by a (4-aminophenyl)sulfonyl group at the nitrogen atom.건강위험
Low order of toxicity; no adverse effect onskin reported; ingestion of large dose couldproduce cholinergic effects.LD50 oral (rat): 2000 mg/kg.
Pharmacology
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).환경귀착
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 준비 용품 및 원자재
원자재
준비 용품
Asulam 공급 업체
글로벌( 171)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Nantong Guangyuan Chemicl Co,Ltd | +undefined17712220823 |
admin@guyunchem.com | China | 616 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
sales@chemdad.com | China | 39916 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49392 | 58 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
factory@coreychem.com | China | 29823 | 58 |
Antai Fine Chemical Technology Co.,Limited | 18503026267 |
info@antaichem.com | CHINA | 9641 | 58 |
SIMAGCHEM CORP | +86-13806087780 |
sale@simagchem.com | China | 17367 | 58 |
TargetMol Chemicals Inc. | +1-781-999-5354 +1-00000000000 |
marketing@targetmol.com | United States | 19892 | 58 |