Product Name

  • Name

    Penconazole

  • EINECS 266-275-6
  • CAS No. 66246-88-6
  • Article Data17
  • CAS DataBase
  • Density 1.27 g/cm3
  • Solubility 73 mg l-1 (25 °C)
  • Melting Point 57.6-60.3 °C
  • Formula C13H15Cl2N3
  • Boiling Point 415.3 °C at 760 mmHg
  • Molecular Weight 284.188
  • Flash Point 204.9 °C
  • Transport Information
  • Appearance gray solid
  • Safety 22-24/25
  • Risk Codes
  • Molecular Structure Molecular Structure of 66246-88-6 (Penconazole)
  • Hazard Symbols
  • Synonyms Topas;1-[2-(2,4-dichlorophenyl)pentyl]-1H-1,2,4-triazole;1H-1,2,4-triazole, 1-[2-(2,4-dichlorophenyl)pentyl]-;1-[2-(2,4-Dichlorophényl)pentyl]-1H-1,2,4-triazole;
  • PSA 30.71000
  • LogP 4.16880

Synthetic route

1-(1H-1,2,4-triazol-1-yl)-2-(2,4-dichlorophenyl)-1-penten

1-(1H-1,2,4-triazol-1-yl)-2-(2,4-dichlorophenyl)-1-penten

penconazole
66246-88-6

penconazole

Conditions
ConditionsYield
rhodium contaminated with carbon; platinumoxide; rhodiumoxide In tetrahydrofuran at 20℃; under 750.06 Torr; for 5.5h;71.4%
1-[2-(2,4-dichlorophenyl)-pentyl]-1,2-diformylhydrazine

1-[2-(2,4-dichlorophenyl)-pentyl]-1,2-diformylhydrazine

penconazole
66246-88-6

penconazole

Conditions
ConditionsYield
In formamide
penconazole
66246-88-6

penconazole

2-[2-(2,4-dichlorophenyl)-pentyl]-2,4-dihydro-[1,2,4]triazole-3-thione
187670-56-0

2-[2-(2,4-dichlorophenyl)-pentyl]-2,4-dihydro-[1,2,4]triazole-3-thione

Conditions
ConditionsYield
Stage #1: penconazole With isopropylmagnesium chloride In tetrahydrofuran at 40℃; for 1.5h;
Stage #2: With sulfur In tetrahydrofuran at 0℃; for 1h;
Stage #3: With hydrogenchloride; water In tetrahydrofuran
60%
penconazole
66246-88-6

penconazole

A

C13H13Cl2N3O

C13H13Cl2N3O

B

C13H13Cl2N3O

C13H13Cl2N3O

Conditions
ConditionsYield
With oxygen; tetramethylammonium tetrafluoroborate; C5H13N2O(1+)*BF4(1-); sodium hydrogencarbonate In water; acetonitrile Reagent/catalyst; Electrochemical reaction;A 19%
B 7%
1-methyl-pyrrolidin-2-one
872-50-4

1-methyl-pyrrolidin-2-one

hydrogen sulfide
7783-06-4

hydrogen sulfide

penconazole
66246-88-6

penconazole

2-(2,4-dichloro-phenyl)-1-(5-mercapto-1,2,4-triazol-1-yl)-pentane

2-(2,4-dichloro-phenyl)-1-(5-mercapto-1,2,4-triazol-1-yl)-pentane

hydrogen sulfide
7783-06-4

hydrogen sulfide

penconazole
66246-88-6

penconazole

2-(2,4-dichloro-phenyl)-1-(5-mercapto-1,2,4-triazol-1-yl)-pentane

2-(2,4-dichloro-phenyl)-1-(5-mercapto-1,2,4-triazol-1-yl)-pentane

Conditions
ConditionsYield
With 1-methyl-pyrrolidin-2-one
With 1-methyl-pyrrolidin-2-one
With 1-methyl-pyrrolidin-2-one
With 1-methyl-pyrrolidin-2-one
penconazole
66246-88-6

penconazole

(-)-penconazole

(-)-penconazole

(+)-penconazole

(+)-penconazole

Conditions
ConditionsYield
With chiralpak IC column In hexane; isopropyl alcohol at 20℃; Thermodynamic data; Solvent; Temperature; Resolution of racemate; enantioselective reaction;

Penconazole Consensus Reports

Reported in EPA TSCA Inventory.

Penconazole Specification

The Penconazole, with the CAS registry number 66246-88-6 and EINECS registry number 266-275-6, has the systematic name of 1-[2-(2,4-dichlorophenyl)pentyl]-1H-1,2,4-triazole. And the molecular formula of this chemical is C13H15Cl2N3. It is a kind of gray solid, and should be stored at 0-6°C. What's more, while dealing with this chemical, you should not breathe dust and then try to avoid contacting with skin and eyes. In addition, it is used in the control of powdery mildew, verturia noshicola and some other pathogen.

The physical properties of Penconazole are as following: (1)ACD/LogP: 3.67; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.66; (4)ACD/LogD (pH 7.4): 3.66; (5)ACD/BCF (pH 5.5): 357.52; (6)ACD/BCF (pH 7.4): 358.99; (7)ACD/KOC (pH 5.5): 2337.49; (8)ACD/KOC (pH 7.4): 2347.05; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 5; (12)Polar Surface Area: 30.71 Å2; (13)Index of Refraction: 1.601; (14)Molar Refractivity: 76.43 cm3; (15)Molar Volume: 222.8 cm3; (16)Polarizability: 30.3×10-24cm3; (17)Surface Tension: 42.9 dyne/cm; (18)Density: 1.27 g/cm3; (19)Flash Point: 204.9 °C; (20)Enthalpy of Vaporization: 66.83 kJ/mol; (21)Boiling Point: 415.3 °C at 760 mmHg; (22)Vapour Pressure: 4.18E-07 mmHg at 25°C.

Preparation of Penconazole: This chemical can be prepared by 1-(1H-1,2,4-triazol-1-yl)-2-(2,4-dichlorophenyl)-1-penten. The reaction will need catalysts rhodiumoxide, platinumoxide and rhodium/carbon, and the solvent tetrahydrofuran. The reaction time is 5.5 hours with temperature of 20°C and pressure of 750.06 Pa, and the yield is about 71.4%. 

Penconazole can be prepared by 1-(1H-1,2,4-triazol-1-yl)-2-(2,4-dichlorophenyl)-1-penten

You can still convert the following datas into molecular structure:
(1)SMILES: Clc1ccc(c(Cl)c1)C(CCC)Cn2ncnc2
(2)InChI: InChI=1/C13H15Cl2N3/c1-2-3-10(7-18-9-16-8-17-18)12-5-4-11(14)6-13(12)15/h4-6,8-10H,2-3,7H2,1H3
(3)InChIKey: WKBPZYKAUNRMKP-UHFFFAOYAF

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral 2444mg/kg (2444mg/kg)   Defense des Vegetaux. Vol. 38, Pg. 195, 1984.
rat LD50 oral 2125mg/kg (2125mg/kg)   Pesticide Manual. Vol. 9, Pg. 554, 1991.
rat LD50 skin > 3gm/kg (3000mg/kg)   Defense des Vegetaux. Vol. 38, Pg. 195, 1984.

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