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Substance Name: Paclobutrazol [ANSI:BSI:ISO]
RN: 76738-62-0
UNII: 6PLV42R3ZA
InChIKey: RMOGWMIKYWRTKW-UONOGXRCSA-N

Classification Codes

  • Agricultural Chemical
  • Growth Regulator / Fertilizer
  • Herbicide

Molecular Formula

  • C15-H20-Cl-N3-O

Molecular Weight

  • 293.796
 
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Names and Synonyms

Results Name

  • Paclobutrazol [ANSI:BSI:ISO]

Name of Substance

  • Paclobutrazol
  • Paclobutrazol [ANSI:BSI:ISO]

Synonyms

  • (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
  • 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
  • EINECS 266-325-7
  • EPA Pesticide Chemical Code 125601
  • Friazole
  • ICI-PP 333
  • Paclobutrazol
  • Parlay
  • PP 333
  • Trimmit
  • UNII-6PLV42R3ZA

Systematic Names

  • 1H-1,2,4-Triazole-1-ethanol, beta-((4-chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-, (alphaR,betaR)-rel-
  • 1H-1,2,4-Triazole-1-ethanol, beta-((4-chlorophenyl)methyl)-alpha-(1,1-dimethylethyl)-, (R*,R*)-(+-)-
  • alpha-tert-Butyl-beta-((4-chlorophenyl)methyl)-1H-triazol-1-ethanol

Registry Numbers

CAS Registry Number

  • 76738-62-0

FDA UNII

  • 6PLV42R3ZA

Other Registry Numbers

  • 66346-04-1
  • 77108-06-6

System Generated Number

  • 0076738620

Structure Descriptors

InChI

1S/C15H20ClN3O/c1-15(2,3)14(20)13(19-10-17-9-18-19)8-11-4-6-12(16)7-5-11/h4-7,9-10,13-14,20H,8H2,1-3H3/t13-,14+/m0/s1

InChIKey

RMOGWMIKYWRTKW-UONOGXRCSA-N

Smiles

CC(C)(C)[C@H](O)[C@H](Cc1ccc(Cl)cc1)n2cncn2

Toxicity

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.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 165.5 deg C   EXP
log P (octanol-water) 3.2 (none)   EXP
Water Solubility 26 mg/L 20 EXP
Vapor Pressure 7.50E-09 mm Hg 20 EXP
Henry's Law Constant 8.28E-11 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 1.68E-11 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.