PACLOBUTRAZOL

Modify Date: 2024-01-06 18:24:41

PACLOBUTRAZOL Structure
PACLOBUTRAZOL structure
Common Name PACLOBUTRAZOL
CAS Number 76738-62-0 Molecular Weight 293.792
Density 1.2±0.1 g/cm3 Boiling Point 460.9±55.0 °C at 760 mmHg
Molecular Formula C15H20ClN3O Melting Point 165-166°C
MSDS Chinese USA Flash Point 232.6±31.5 °C
Symbol GHS02 GHS07 GHS08
GHS02, GHS07, GHS08
Signal Word Danger

 Use of PACLOBUTRAZOL


Paclobutrazol is a triazole-containing plant growth retardant that is known to inhibit the biosynthesis of gibberellins. Paclobutrazol also has antifungal activities. Paclobutrazol, transported acropetally in plants, can also suppress the synthesis of abscisic acid and induce chilling tolerance in plants.Paclobutrazol is typically used to support research on the role of gibberellins in plant biology.

 Names

Name paclobutrazol
Synonym More Synonyms

 PACLOBUTRAZOL Biological Activity

Description Paclobutrazol is a triazole-containing plant growth retardant that is known to inhibit the biosynthesis of gibberellins. Paclobutrazol also has antifungal activities. Paclobutrazol, transported acropetally in plants, can also suppress the synthesis of abscisic acid and induce chilling tolerance in plants.Paclobutrazol is typically used to support research on the role of gibberellins in plant biology.
Related Catalog

 Chemical & Physical Properties

Density 1.2±0.1 g/cm3
Boiling Point 460.9±55.0 °C at 760 mmHg
Melting Point 165-166°C
Molecular Formula C15H20ClN3O
Molecular Weight 293.792
Flash Point 232.6±31.5 °C
Exact Mass 293.129486
PSA 50.94000
LogP 2.99
Vapour Pressure 0.0±1.2 mmHg at 25°C
Index of Refraction 1.580

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
XZ4803300
CHEMICAL NAME :
1H-1,2,4-Triazole-1-ethanol, beta-((4-chlorophenyl)methyl)-alpha-(1,1-dimethylethy l)-, (R*,R*)-(+-)-
CAS REGISTRY NUMBER :
76738-62-0
LAST UPDATED :
199712
DATA ITEMS CITED :
9
MOLECULAR FORMULA :
C15-H20-Cl-N3-O
MOLECULAR WEIGHT :
293.83

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1300 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,664,1991
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
369 gm/m3/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C228,1991
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,644,1991
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
490 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,644,1991
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
840 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,644,1991
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,644,1991
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
400 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,644,1991
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Bird - duck
DOSE/DURATION :
>7900 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,644,1991

 Safety Information

Symbol GHS02 GHS07 GHS08
GHS02, GHS07, GHS08
Signal Word Danger
Hazard Statements H228-H302-H361
Precautionary Statements P210-P280-P301 + P312 + P330-P370 + P378
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xn:Harmful
Risk Phrases R22
Safety Phrases S36
RIDADR UN1325 4.1/PG 2
RTECS XZ4803300
HS Code 2933990019

 Customs

HS Code 2933990019
Summary 2933990019 phenazine 5-oxide。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:20.0%

 Articles39

More Articles
ABA inhibits germination but not dormancy release in mature imbibed seeds of Lolium rigidum Gaud.

J. Exp. Bot. 60 , 3387-96, (2009)

Dormancy release in imbibed annual ryegrass (Lolium rigidum Gaud.) seeds is promoted in the dark but inhibited in the light. The role of abscisic acid (ABA) in inhibition of dormancy release was found...

Dissipation and enantioselective degradation of plant growth retardants paclobutrazol and uniconazole in open field, greenhouse, and laboratory soils.

Environ. Sci. Technol. 47(2) , 843-9, (2013)

Greenhouses are increasingly important in human food supply. Pesticides used in greenhouses play important roles in horticulture; however, little is known about their behavior in greenhouse environmen...

The transcriptional regulator BBX24 impairs DELLA activity to promote shade avoidance in Arabidopsis thaliana.

Nat. Commun. 6 , 6202, (2015)

In response to canopy shade, plant vegetative structures elongate to gain access to light. However, the mechanism that allows a plastic transcriptional response to canopy shade light is not fully eluc...

 Synonyms

EINECS 616-379-6
(R*,R*)-(±)-b-[(4-Chlorophenyl)methyl]-a-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol
pp333
PACLOBUTRAZOL
Parlay
ICI PP 333
1-tert-Butyl-2-(p-chlorobenzyl)-2-(1,2,4-triazol-1-yl)ethanol
Trimmit
(2S,3S)-1-(4-Chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol
Friazole
bonzi
(2S,3S)-1-(4-Chlorphenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol
Multi-effect triazole
rac-(2R,3R)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol
(αR,βR)-rel-β-[(4-chlorophenyl)methyl]-α-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol
CLIPPER
Cultar
1H-1,2,4-Triazole-1-ethanol, β-[(4-chlorophenyl)methyl]-α-(1,1-dimethylethyl)-, (αS,βS)-
PREDICT
Duo Xiao Zuo
(2S,3S)-1-(4-Chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)-3-pentanol
(2RS,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol
MFCD01678673
Smarect
UNII:6PLV42R3ZA
Culter
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