• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • CAS No.: 55268-74-1
  • Other Names: Drontal
  • MF: C19H24N2O2
  • EINECS No.: 259-559-6
  • Place of Origin: Shandong, China (Mainland)
  • Type: Antibiotic and Antimicrobial Agents
  • Grade Standard: Medicine Grade
  • Usage: Animal Pharmaceuticals
  • Brand Name: HHD
  • Model Number: MFCD00058531
  • Purity: >99%
  • Molecular Weight: 312.41
  • Synonym: (+/-)-Praziquantel
  • Physical State: Solid
  • Solubility: Soluble in 100% ethanol or chloroform; slightly soluble in water.
  • Storage: Store at room temperature
  • Boiling Point: ~544.1 °C at 760 mmHg (Predicted)
  • Density: ~1.2 g/cm3 (Predicted)
  • RTECS: UQ4150000
  • PubChem CID: 4891
  • Merck Index: 14: 7716

Packaging & Delivery

Packaging Details 25kg/fiber can or as per your request
whthin 3 days after payment
Delivery Time Shipped in 3 days after payment


Product Description


Product Names:Praziquantel 


Other names: Drontal

Molecular Formula:C19H24N2O2

Molecular Weight:312.41

Character:White crystalline powders

Melting point:161°C-164°C

Assay:99. 0%

Items of Test


Result of Test


White or partically white crystalline powder


Melting point




Consistent with the IR spectrum for reference standard


Loss on drying



Residue on ignition






Heavy metal



Related substances







Residual solvent

Ethanol ≤5000ppm

Chloroform ≤60ppm




98.5%-101.0%(dried substance)


Application: A highly effective anthelmintic

Main Function:  Intermediates of Praziquantel

Packaging & Shipping

Packaging Details: 25kg/fiber can or as per your request
Delivery Detail:within 3 days after receiving your payment


Our Services

1.Cooperate with research institutions, we strictly control the process from raw material to finished product.

2.The customer comes first, we provide reasonable price, high quality product and prompt shipment.

3.We can send the goods to your delivery address directly. It is relatively safe and fast. We have ready goods in stock.

4.Quick and clear response to customers questions.
Warm after sale service, we will help to solve the problems in your usage.

5.We could make our price discount if you place a substantial order with us.

Company Information

Qingdao HanHaiDa Import And Export Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.

The aim of HHD is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.

HanhaiDa has become the "Top 500 Chinese manufacturing companies","Top 20 of global agrochemical sales".HHD has 21 subsidiaries and holding companies.


Q1: Are you a manufacturer?
Answer: Yes, we are factory founded on 1988.

Q2: How to contact with us?
Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.

Q3:Which kind of payment terms do you accept?
For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account

Q4:Can you give me a discount price?
Surely,It depend on your qty

Q5:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.

Q6: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.


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:
154 Transactions 100,000+
The supplier’s transactions conduted 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 $58,000
Learn More