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除虫菊素

除虫菊素用途

1.可用于生产气雾杀虫剂、蚊香、动物香波及绿色农药等

2.除虫菊素作用于细胞膜上的钠离子通道，对突触体上ATP酶的活性也有影响。增效醚等增效剂对除虫菊素有明显的增效作用。

除虫菊素名称

[ CAS 号 ]:
121-29-9

[ 中文名 ]:
除虫菊素Ⅱ

[ 英文名 ]:
pyrethrin 2

[中文别名 ]:

除虫菊素

[英文别名 ]:

PYRETHRIN 2
Pyrethrin II
EINECS 204-462-6

除虫菊素物理化学性质

[ 密度 ]:
1.1±0.1 g/cm3

[ 沸点 ]:
473.7±45.0 °C at 760 mmHg

[ 分子式 ]:
C₂₂H₂₈O₅

[ 分子量 ]:
372.455

[ 闪点 ]:
203.8±28.8 °C

[ 精确质量 ]:
372.193665

[ PSA ]:
69.67000

[ LogP ]:
4.43

[ 蒸汽压 ]:
0.0±1.2 mmHg at 25°C

[ 折射率 ]:
1.528

除虫菊素毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GZ0700000

CHEMICAL NAME :: Cyclopropaneacrylic acid, 3-carboxy-alpha,2,2-trimethyl-, 1-methyl ester, ester with 4- hydroxy-3-methyl-2-(2,4-pentadienyl)-2-cyclopenten-1- one

CAS REGISTRY NUMBER :: 121-29-9

LAST UPDATED :: 199701

DATA ITEMS CITED :: 9

MOLECULAR FORMULA :: C22-H28-O5

MOLECULAR WEIGHT :: 372.50

WISWESSER LINE NOTATION :: L5V BUTJ B2U2U1 C1 DOV- BL3TJ A1 A1 C1UY1&VO1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 1029 mg/kg

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

REFERENCE :: 85DCAI "Poisoning; Toxicology, Symptoms, Treatments," 2nd ed., Arena, J.M., Springfield, IL, C.C. Thomas, 1970 Volume(issue)/page/year: 2,73,1970

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 200 mg/kg

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

REFERENCE :: ARSIM* Agricultural Research Service, USDA Information Memorandum. (Beltsville, MD 20705) Volume(issue)/page/year: 20,17,1966

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - tremor Behavioral - convulsions or effect on seizure threshold

REFERENCE :: PCBPBS Pesticide Biochemistry and Physiology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1971- Volume(issue)/page/year: 2,308,1972

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 130 mg/kg

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

REFERENCE :: ABCHA6 Agricultural and Biological Chemistry. (Maruzen Co. Ltd., POB 5050, Tokyo International, Tokyo 100-31, Japan) V.25- 1961- Volume(issue)/page/year: 37,2681,1973 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-FINLAND:TWA 5 mg/m3;STEL 10 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 5 mg/m3;STEL 10 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83467 No. of Facilities: 6 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 17 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83467 No. of Facilities: 241 (estimated) No. of Industries: 6 No. of Occupations: 8 No. of Employees: 5966 (estimated) No. of Female Employees: 390 (estimated)

除虫菊素安全信息

[ 危害码 (欧洲) ]:
Xn: Harmful;N: Dangerous for the environment;

[ 风险声明 (欧洲) ]:
R20/21/22

[ 安全声明 (欧洲) ]:
S13;S60;S61

[ 危险品运输编码 ]:
UN 2902

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1(b)

[ 海关编码 ]:
29183000

除虫菊素制备

1.存在于菊科（Compositae）菊属（Chrysanthemum）除虫菊亚属（Pyrethrum）的若干种植物的花中，尤以白花除虫菊（Pyrethrum cinerariaefolium）中的有效成分含量最高。除虫菊干花中含除虫菊素一般为0.9%～1.3%，经石油醚回流萃取，浓缩，得粗制黏稠物约含除虫菊素30%，经过脱蜡和脱色，得含除虫菊素60%的精品，可供配制浸膏和加工其他制剂之用，如再用硝基甲烷等作进一步精制，最后可获得除虫菊素含量达80%～85%的近于无色黏稠油状高纯度产品。也可以用混合溶剂抽提，如甲醇／煤油、石油醚／乙腈、石油醚／硝基甲烷等。