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Paclobutrazol 90%TC, 95%TC Plant growth regulator

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Paclobutrazol 90%TC, 95%TC Plant growth regulator

Paclobutrazol 15% WP, 95% TC, Plant Growth Regulator  

 

1. Basic Information of paclobutrazol

 

Product name

Paclobutrazol

 

CAS NO.

76738-62-0

 

Chemical name

(2RS,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol; Bonzi; (2RS,3RS)-1(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol; (2RS,3RS)-1-(4-chloro phenyl)-4,4-methyl-2-(1H-1,2,4-triazol-1-yl)-E-3-ol.

 

Classification

Plant growth regulator/ Agrochemical

Formulation

Paclobutrazol 95% TC / 30% /15% WP / 25% SC

Physical and chemical properties

1.The pure product is a white crystalline solid; relative density is 1.22; the melting point was 165 ~ 166 °C; vapor pressure (20 °C) is 1 × l0-6Pa, 20 °C for 0.1Pa, (30 °C) is 8 × 10-6Pa. 20 °C

2. Solubility: acetone 110g/L, 150g/L of methanol, hexane dichloromethane 100g/L, 10g/L, 180g/L xylene cyclohexanone, 60g/L, water 35mg/L. The distribution coefficient (octanol / water) 1590.

3. The pure product at 50 °C stable within 6 months. On the UV stable. Stable water solution of more than 30d at room temperature.

 

 Toxicity

 Paclobutrazol is a kind of low toxicity plant growth regulator.

 

 

 2. Specifications:

 

Tablet 1.  Chemical Analysis of Paclobutrazol 15% WP

 

ItemStandard
 Content  15% min.
    Calcium Carbonate76% max.
     White Carbon Black  4% max
Dispersant4% max.
 Moisture 1% max
Solute Time90 max 
PH  6.0-10.0
 Particle Size (Through 44 mesh) m/m 98min

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tablet 2. Chemical Analysis of Paclobutrazol 95% TC

 

ItemStandard
Content95% min
Loss on drying0.1% max
Acidity0.3% max
Insoluble in acetone0.3% max

 

3. Mode of Actions:

 

Mode of actions
1). Inhibits the stem growth and breaks the apical dominance(can inhibit the generation of Gibberellic acid);
2).  Inhibits the internodal elongation, resists to lodging;
3). Improves the abilities of stress tolerance
4). Promotes the lateral bud growth
5). Enhances or inhibits the photosynthesis, depends on the concentration
6). Improves the respiration intensity of root, slows down the respiration of aboveground parts of crops.

 

4. Applications of paclobutrazol 15% wp

 

CropsProcessing periodConcentrationEffects
RiceBefore the period of one-leaf seeding bed300mg/L
Plant elongation are slowed, the length of stems are controled and tillers are promoted, resist lodging, the yield of rice is improved.


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