• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Classification: Plant Growth Regulator
  • CAS No.: 76738-62-0
  • Other Names: PP333
  • MF: C15H20CLN3O
  • EINECS No.: 266-325-7
  • Place of Origin: Hunan, China (Mainland)
  • State: Powder
  • Purity: 15% min.
  • Application: Plant Growth Regulator
  • Brand Name: New Sunshine
  • Model Number: PAC15
  • 95% TC: 30% WP
  • 15% WP: 25% SC

Packaging & Delivery

Packaging Details 1kg/bag or 25kgs/drum
Delivery Time Shipped in 3 days after payment
Product Description

Product Name:




Product Introduction:

 Paclobutrazol (PP 333, PBZ) is a plant Growth Regulator (PGR). It acts by inhibiting gibberellin biosynthesis, reducing internodial growth to give stouter stems, increasing root growth, causing early fruitset and increasing seedset in plants such as tomato and pepper. Paclobutrazol (PP 333, PBZ) has also been shown to reduce frostsensitivity in plants.


Paclobutrazol (PP 333, PBZ) is also used to reduce shoot growth and has been shown to have additional positive effects on trees and shrubs. Among those are improved resistance to drought stress, darker green leaves, higher resistance against fungi and bacteria, and enhanced development of roots. 


Product formulations:

Paclobutrazol 95%, 15%/25%/30%/50% WP, 15%/25% SC

Solubility & Stability:

Solubility In water 22.9 mg/l. In xylene 5.67, n-heptane 0.199, acetone 72.4, ethyl acetate 45.1, n-octanol 29.4, methanol 115, 1,2-dichloroethane 51.9 (all in g/l). Stability Stable for more than 2 years at 20 °C, and more than 6 months at 50 °C. Stable to hydrolysis (pH 4–9), and not degraded by uv light (pH 7, 10 days).



Biochemistry: Inhibits gibberellin biosynthesis by inhibition of the conversion of ent-kaurene to ent-kaurenoic acid, and inhibits sterol biosynthesis by inhibition of demethylation; hence inhibits the rate of cell division.


Mode of action: Plant growth regulator taken up into the xylem through the leaves, stems or roots, and translocated to growing sub-apical meristems. Produces more compact plants and enhances flowering and fruiting.


Uses: Used on fruit trees to inhibit vegetative growth and to improve fruit set; on pot-grown ornamentals and flower crops (e.g. chrysanthemums, begonias, freesias, poinsettias and bulbs) to inhibit growth; on rice to increase tillering, reduce lodging and increase yield; on turf to retard growth; and on grass seed crops and oilseed rape to reduce height and prevent lodging. To be applied as a foliar spray, as a soil drench, or by trunk injection. Has some fungicidal activity against mildew and rusts. Rates of application vary widely, depending on area of use, application method, application timing, size of crop, and cultivation method.


Phytotoxicity: Non-phytotoxic, though it intensifies greening. Some spotting has been noted on periwinkle foliage at higher temperatures.


Picture of Paclobutrazol:

Packaging & Shipping

1kg Al.Foil bag, then 25 bags/paper drum

Delivery time:
Shipment by TNT/DHL/FEDEX/EMS courier: We will arrange shipment within 3 working days after receipt of payment
Shipment by sea: Within 21 working days after receipt of deposit or relevant L/C


Our Services

 1. Fast response and professional service

Your enquiry will be replied within 24 hours, including holidays.

2. Quality-guaranteed products.

We are manufacturer of Plant growth hormones and other agrochemicals.

We have best production capability, best quality control, and best service.


3.Rich exporting experience of Agrochemicals.

We have more then 10 years of exporting experience, we can help you choosing the safest transportation method,

we will prepare a full set of documents for customs-clearance, send along with the cargo.


4. After-sales service.

Tracking your goods till received it, if any problems during the shipment, we will contact with the shipping company and solve it in time.

We're responsible for the product quality.

We'll provide professional technical information and service to all of our clients.
Related Products

Buyer Feedback



Contact us


Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
Trade Assurance
China (Mainland) | Trading Company
Transaction Level:
Supplier Assessments:
10 Transactions 4,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $69,000
Learn More