Molecular Structure of Fenvalerate (CAS NO.51630-58-1):
 

IUPAC Name: [cyano-(3-phenoxyphenyl)methyl] 2-(4-chlorophenyl)-3-methylbutanoate
EINECS: 257-326-3 
Empirical Formula: C₂₅H₂₂ClNO₃
Molecular Weight: 419.9001
H bond acceptors: 4
H bond donors: 0
Freely Rotating Bonds: 8
Polar Surface Area: 59.32 Å²
Index of Refraction: 1.586
Molar Refractivity: 116.44 cm³
Molar Volume: 346.7 cm³
Surface Tension: 47.3 dyne/cm
Density: 1.21 g/cm³
Flash Point: 279.7 °C
Storage temp: −20°C
Merck: 13,4038
Enthalpy of Vaporization: 81.62 kJ/mol
Boiling Point: 538.9 °C at 760 mmHg
Vapour Pressure: 1.11E-11 mmHg at 25°C
Product Categories: Agro-Chemicals; Insecticide
InChI
InChI=1/C25H22ClNO3/c1-17(2)24(18-11-13-20(26)14-12-18)25(28)30-23(16-27)19-7-6-10-22(15-19)29-21-8-4-3-5-9-21/h3-15,17,23-24H,1-2H3
Smiles
c1([C@@H](C(O[C@@H](c2cc(Oc3ccccc3)ccc2)C#N)=O)C(C)C)ccc(Cl)cc1

Cyanide and its compounds are on the Community Right-To-Know List.

Poison by ingestion, intravenous, and intracerebral routes. Moderately toxic by skin contact. Experimental reproductive effects. Mutation data reported. Highly toxic to fish and bees. Corrosive, causes eye damage. A skin irritant. When heated to decomposition it emits toxic fumes of Cl⁻, NO_x, and CN⁻. See also CYANIDE.
Hazard Codes: T,N
Risk Statements: 25-36/37/38-50/53-57
R25 :Toxic if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
R57:Toxic to bees.
Safety Statements: 26-45-60-61
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S60:This material and its container must be disposed of as hazardous waste. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
RTECS: CY1576350
HazardClass: 6.1(b)
PackingGroup: III

 Fenvalerate , with CAS number of 51630-58-1, can be called Cyano (3-phenoxybenzyl)-2-(4-chlorophenyl)-3-methylbutyrate ; 4-Chloro-alpha-(1-methylethyl)benzeneacetic acid cyano(3-phenoxyphenyl)methyl ester ; Cyano-(3-phenoxyphenyl)methyl 4-chloro-alpha-(1-methylethyl)benzene acetate ; Belmark ; Ectrin ; Extrin ; Fenkill ; Phenvalerate; Pydrin ; Sumicidin; Sumicide; Sumifly ; Sumipower ; Sumitox . Fenvalerate does not affect plants, but is active for an extended period of time. Fenvalerate is an insecticide, against a wide range of pests. It is most commonly used to control insects in food, feed and cotton products, for the control of flies and ticks in barns and stables. Fenvalerate is an insecticide of moderate mammalian toxicity. It is most toxic to bees and fish.