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70-38-2

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Basic Information
CAS No.: 70-38-2
Name: Dimethrin.
Molecular Structure:
Molecular Structure of 70-38-2 (Dimethrin.)
Formula: C19H26 O2
Molecular Weight: 286.414
Synonyms: Chrysanthemummonocarboxylicacid, 2,4-dimethylbenzyl ester (6CI); Cyclopropanecarboxylic acid,2,2-dimethyl-3-(2-methyl-1-propenyl)-, (2,4-dimethylphenyl)methyl ester (9CI);Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methylpropenyl)-,2,4-dimethylbenzyl ester (7CI,8CI); 2,4-Dimethylbenzyl 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylate;2,4-Dimethylbenzyl chrysanthemumate; Chrysanthemumic acid 2,4-dimethylbenzylester; Dimethrin; Dimetrin; ENT 21,170; NSC 15731
Density: 1.042g/cm3
Boiling Point: 363.9°C at 760 mmHg
Flash Point: 167.8°C
Hazard Symbols: Toxic by ingestion.
Safety: Low toxicity by ingestion and skin contact. When heated to decomposition it emits acrid smoke and irritating vapors.
PSA: 26.30000
LogP: 4.58500
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Chemistry

Empirical Formula: C19H26O2
Molecular Weight: 286.4085 g/mol
Index of Refraction: 1.557
Density: 1.042 g/cm3
Flash Point: 167.8 °C
Enthalpy of Vaporization: 61 kJ/mol
Boiling Point: 363.9 °C at 760 mmHg
Vapour Pressure: 1.75E-05 mmHg at 25 °C 
Structure of Dimethrin. (CAS NO.70-38-2):
                    
IUPAC Name of Dimethrin. (CAS NO.70-38-2): (2,4-Dimethylphenyl)methyl2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Toxicity Data With Reference

1.    

orl-rat LD50:40 g/kg

     28ZEAL    Pesticide Index. 5 (1976),79.
2.    

orl-mus LD50:10 g/kg

     GISAAA    Gigiena i Sanitariya. 33 (5)(1968),116.
3.    

orl-rbt LD50:>15 g/kg

     SPEADM    Special Publication of the Entomological Society of America. 78-1 (1978),5.
4.    

skn-rbt LD :>4900 mg/kg

     TXAPA9    Toxicology and Applied Pharmacology. 6 (1964),112.
5.    

orl-gpg LD :>9800 mg/kg

     TXAPA9    Toxicology and Applied Pharmacology. 6 (1964),112.

Safety Profile

Low toxicity by ingestion and skin contact. When heated to decomposition Dimethrin. (CAS NO.70-38-2) emits acrid smoke and irritating vapors.

Specification

 Dimethrin. ,its cas register number is 70-38-2. It also can be called 2,2-Dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylic acid 2,4-dimethylbenzyl ester ; Dimethrine ;and Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (2,4-dimethylphenyl)methyl ester .