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乳氟禾草灵

乳氟禾草灵用途

属选择性苗后茎叶处理除草剂

乳氟禾草灵名称

[ CAS 号 ]:
77501-63-4

[ 中文名 ]:
乳氟禾草灵

[ 英文名 ]:
Lactofen

[中文别名 ]:

克阔乐

[英文别名 ]:

lactofen [ANSI]
cobraherbicide
COBRA(R)
yl-2-oxoethylester
ppg844
cobra (tm)
MFCD01632761
COBRA
FXFFR CG DOR DNW CVOY1&VO2
Phoenix

乳氟禾草灵物理化学性质

[ 密度 ]:
1.4±0.1 g/cm3

[ 沸点 ]:
494.0±45.0 °C at 760 mmHg

[ 熔点 ]:
43.9 - 45.5 degreesºC

[ 分子式 ]:
C₁₉H₁₅ClF₃NO₇

[ 分子量 ]:
461.773

[ 闪点 ]:
252.6±28.7 °C

[ 精确质量 ]:
461.048920

[ PSA ]:
107.65000

[ LogP ]:
4.84

[ 外观性状 ]:
白色结晶固体,可能出现棕色或黄褐色的形态

[ 蒸汽压 ]:
0.0±1.3 mmHg at 25°C

[ 折射率 ]:
1.535

[ 储存条件 ]:
库房通风低温干燥,与食品原料分开储运

乳氟禾草灵MSDS

详细MSDS(安全技术说明书)

乳氟禾草灵毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DG5643120

CHEMICAL NAME :: Benzoic acid, 5-(2-chloro-4-(trifluoromethyl)phenoxy)-2-nitro-, 2-ethoxy-1-methyl-2- oxoethyl ester

CAS REGISTRY NUMBER :: 77501-63-4

LAST UPDATED :: 199701

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C19-H15-Cl-F3-N-O7

MOLECULAR WEIGHT :: 461.80

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C77,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C77,1991

乳氟禾草灵安全信息

[ 符号 ]:

GHS07, GHS09

[ 信号词 ]:
Warning

[ 危害声明 ]:
H312-H411

[ 警示性声明 ]:
P273-P280

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xn,N

[ 风险声明 (欧洲) ]:
21-51/53

[ 安全声明 (欧洲) ]:
36/37-61

[ 危险品运输编码 ]:
UN3077 9/PG 3

[ RTECS号 ]:
DG5643120

[ 海关编码 ]:
2918990025

乳氟禾草灵制备

1. 3,4-二氯三氟甲基苯与间羟甚苯甲酸反应，得到3-（2-氯-4-（三氟甲基）苯氧基）苯甲酸，该化合物经硝化得到5-（2-氯-4-（三氟甲基）苯氧基）-2-硝基苯甲酸，最后与α－氯代丙酸乙酯在碳酸钾存在下于二甲基亚砜中反应，即制得目的物．

2. 3-[2-氯-4-(三氟甲基)苯氧基]苯甲酸的制备在催化剂存在下，将0.5mol间羟基苯甲酸钾盐、125mL二甲基亚砜升温至100℃，然后滴加0.55mol3,4-二氯三氟甲苯，滴毕后于135℃保温反应15h，减压回收二甲基亚砜，加入200mL甲苯和100mL水，调节狆犎值1～2，搅拌静置，分出水层，甲苯萃取，合并有机相。再经水洗、脱溶后倒入培养皿中，干燥得白色固体136.3g，含量95.8%，收率82.5%。

3. 5-[2-氯-4-(三氟甲基)苯氧基[-2-硝基苯甲酸的制备将上步产物0.2mol、50mL乙酐、150mL二氯甲烷，搅拌溶解后滴加混酸（0.24mol硝酸+0.48mol硫酸），升温回流5h，分出下层无机酸，用二氯甲烷萃取，合并有机相，再经水洗、脱溶后倒入培养皿中干燥，得浅黄色固体71.4g，含量85.6%，收率84.5%。

4.乳氟禾草灵的合成将上步产物0.2mol、无水碳酸钾0.2mol、乙腈200mL与催化剂混合后，于室温下滴加0.24mol氯丙酸乙酯，滴毕2h内升温至回流，回流反应5h后降至室温，滤出无机盐，滤液脱溶，得棕黑色黏稠状液体98.8g，含量80%，收率86.2%。

5. 3,4-二氯苯基三氟甲烷与氢氧化钾作用得2--4-三氟甲基苯酚。然后与碳酸钾在犇犕犛犗中、氮气保护下混合。再与2-硝基-5-氟苯甲酸甲酯在室温下反应，得相应二苯醚类化合物。该化合物水解后转变为酰氯，与2-羟基丙酸乙酯回流反应6h，得乳氟禾草灵。

乳氟禾草灵海关

[ 海关编码 ]: 2918990025

乳氟禾草灵文献

Enantioselective degradation in sediment and aquatic toxicity to Daphnia magna of the herbicide lactofen enantiomers.

J. Agric. Food Chem. 58(4) , 2439-45, (2010)

Many pesticides in use are chiral compounds containing stereoisomers. However, the environmental behavior and fate of such compounds with respect to enantioselectivity so far has received little atten...

A codon deletion confers resistance to herbicides inhibiting protoporphyrinogen oxidase.

Proc. Natl. Acad. Sci. U. S. A. 103(33) , 12329-34, (2006)

Herbicides that act by inhibiting protoporphyrinogen oxidase (PPO) are widely used to control weeds in a variety of crops. The first weed to evolve resistance to PPO-inhibiting herbicides was Amaranth...

Influence of soil properties on the enantioselective dissipation of the herbicide lactofen in soils.

J. Agric. Food Chem. 57(13) , 5865-71, (2009)

A scheme was developed to elucidate the dissipation behaviors of the two enantiomers of the herbicide lactofen in soils using a normal-phase high-performance liquid chromatograph (HPLC) with UV detect...

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