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Name |
Paclobutrazol |
EINECS | 266-325-7 |
CAS No. | 76738-62-0 | Density | 1.19 g/cm3 |
PSA | 50.94000 | LogP | 3.12230 |
Solubility | N/A | Melting Point |
165-166 °C |
Formula | C15H20ClN3O | Boiling Point | 460.9 °C at 760 mmHg |
Molecular Weight | 293.79 | Flash Point | 232.6 °C |
Transport Information | N/A | Appearance | off-white to beige solid |
Safety | 36 | Risk Codes | 22 |
Molecular Structure | Hazard Symbols | Xn | |
Synonyms |
Paclobutrazol [ANSI:BSI:ISO];(2RS,3RS)-1-(4-Chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol;(2RS,3RS)-1-(4-Chlorophenyl)-4,4-dimethyl-2-1,2,4-triazol-1-yl pentan-3-ol;(R*,R*)-(+-)-beta-((4-Chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol;Bonzi;Caswell No. 628C;Clipper;Clipper 50WP;Cultar;Duo Xiao Zuo ; EPA Pesticide Chemical Code 125601;Friazole;ICI-PP 333;PP 333;Paclobutrazol;Parlay;Trimmit;beta-((4-Chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol;1H-1,2,4-Triazole-1-ethanol, beta-((4-chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-, (R*,R*)-(+-)-;1H-1,2,4-Triazole-1-ethanol, beta-((4-chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-, (alphaR,betaR)-rel-;alpha-tert-Butyl-beta-((4-chlorophenyl)methyl)-1H-triazol-1-ethanol; |
Article Data | 7 |
paclobutrazol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sulphamoyl chloride / N,N-dimethyl acetamide / 0 - 20 °C 2: [bis(acetoxy)iodo]benzene; 1,3-dimethyl-imidazoline-2-selone / dichloromethane / Inert atmosphere View Scheme |
paclobutrazol
Conditions | Yield |
---|---|
With sulphamoyl chloride In N,N-dimethyl acetamide at 0 - 20℃; | 1.26 g |
Molecular structure of Paclobutrazol (CAS NO.76738-62-0) is:
Product Name: Paclobutrazol
CAS Registry Number: 76738-62-0
IUPAC Name: (2S,3S)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pentan-3-ol
Molecular Weight: 293.7918 [g/mol]
Molecular Formula: C15H20ClN3O
XLogP3: 3.2
H-Bond Donor: 1
H-Bond Acceptor: 3
EINECS: 266-325-7
Melting Point: 165-166 °C
Flash Point: 232.6 °C
Enthalpy of Vaporization: 76.04 kJ/mol
Boiling Point: 460.9 °C at 760 mmHg
Vapour Pressure: 2.72E-09 mmHg at 25°C
Product Categories: Plant growth regulator
Paclobutrazol (CAS NO.76738-62-0) is a plant growth retardant and triazole fungicide. It has also been shown to reduce frost sensitivity in plants. It is used to reduce shoot growth by arborists and has been shown to have additional positive effects on trees and shrubs.
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
duck | LD50 | oral | > 7900mg/kg (7900mg/kg) | Pesticide Manual. Vol. 9, Pg. 644, 1991. | |
guinea pig | LD50 | oral | 400mg/kg (400mg/kg) | Pesticide Manual. Vol. 9, Pg. 644, 1991. | |
mouse | LD50 | oral | 490mg/kg (490mg/kg) | Pesticide Manual. Vol. 9, Pg. 644, 1991. | |
rabbit | LD50 | oral | 840mg/kg (840mg/kg) | Pesticide Manual. Vol. 9, Pg. 644, 1991. | |
rabbit | LD50 | skin | > 1gm/kg (1000mg/kg) | Pesticide Manual. Vol. 9, Pg. 644, 1991. | |
rat | LC50 | inhalation | 369gm/m3/4H (369000mg/m3) | Farm Chemicals Handbook. Vol. -, Pg. C228, 1991. | |
rat | LD50 | oral | 1300mg/kg (1300mg/kg) | Pesticide Manual. Vol. 9, Pg. 664, 1991. | |
rat | LD50 | skin | > 1gm/kg (1000mg/kg) | Pesticide Manual. Vol. 9, Pg. 644, 1991. |
Hazard Codes: Xn
Risk Statements: 22
R22:Harmful if swallowed.
Safety Statements: 36
S36:Wear suitable protective clothing.
RIDADR: UN1325 4.1/PG 2
RTECS: XZ4803300
Paclobutrazol , its cas register number is 76738-62-0. It also can be called Paclobutrazol [ANSI:BSI:ISO] ; (2RS,3RS)-1-(4-Chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol ; (2RS,3RS)-1-(4-Chlorophenyl)-4,4-dimethyl-2-1,2,4-triazol-1-yl pentan-3-ol ; (R*,R*)-(+-)-beta-((4-Chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol ; Bonzi ; Caswell No. 628C ; Clipper ; Clipper 50WP ; Cultar ; Duo Xiao Zuo ; EPA Pesticide Chemical Code 125601 ; Friazole ; ICI-PP 333 ; PP 333 ; Paclobutrazol ; Parlay ; Trimmit ; beta-((4-Chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol ; 1H-1,2,4-Triazole-1-ethanol, beta-((4-chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-, (R*,R*)-(+-)- ; 1H-1,2,4-Triazole-1-ethanol, beta-((4-chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-, (alphaR,betaR)-rel- ; alpha-tert-Butyl-beta-((4-chlorophenyl)methyl)-1H-triazol-1-ethanol . It is a off-white to beige solid. And it is normally applied to the soil to be taken up by the roots and transported via the xylem to the upper parts of the plant.