Pharmaceutical
The Pharmaceutical Manufacturer!
Hangzhou Weitong Nanomaterials Co., Ltd. is an innovative enterprise focusing on the field of nanomaterials, founded in 2015. Our factory has an efficient production capacity and is able to produce a wide range of high-quality products. Our factory adopts a strict quality management system to ensure that the products meet high quality standards. We have a professional technical team and advanced production equipment, as well as perfect after-sales service, to provide customers with a full range of solutions. We strive for continuous innovation and optimization to meet and exceed our customers' needs and expectations, and move forward to become a world-class chemical company.
Why choose us
Our factory
Hangzhou Weitong Nanomaterials Co., Ltd. is an innovative enterprise focusing on the field of nanomaterials, founded in 2015. Our factory has an efficient production capacity and is able to produce a wide range of high-quality products.
Our product
Our range of NVP-based products covers various series tailored to different industries. This includes the homopolymer series (K15-K120), copolymer series (VA64 powder, V64E, VA64W, 73W, 37E, 37W), and cross-linked series (PVPP XL-10, PVPP-10, povidone-iodine pvpI). These products find applications across diverse sectors, serving as stabilizers, dispersants, coatings, inks, and adhesives.
Quality control
We have the ISO9001 certificate, and we strictly follow GMP production standards for production.
Good after-sale service
We have a sound after-sales service system, so whatever you have any doubt about the product, you can strictly contact us, we will give you a satisfied plan.
Povidone K
Product Name: Povidone K
USP/EP Name: Povidone, povidonum
INCI: PVP
CAS NO: 9003-39-8
|
Povidone |
K Value |
Viscosity-Average Molecular Weight (Mv) |
Main Applications |
|
K12 |
10.2 - 13.8 |
3,000 - 7,000 |
Used as solubilizer, dispersant and crystallization inhibitor in liquid preparations. |
|
K15 |
12.75 - 17.25 |
8,000 - 12,000 |
- |
|
K17 |
15.3 - 18.36 |
10,000 - 16,000 |
- |
|
K25 |
22.5 - 27.0 |
30,000 - 40,000 |
Used as binder, film-forming agent, solubilizer, suspension stabilizer and dispersant in solid and liquid preparations. |
|
K30 |
27 - 32.4 |
45,000 - 58,000 |
- |
|
K60 |
54 - 64.8 |
270,000 - 400,000 |
Used as binder, thickener and suspension stabilizer in preparations. |
|
K90 |
81 - 97.2 |
1,000,000 - 1,500,000 |
- |
Main Applications
|
Functions |
Main Application Characteristics in Preparations |
|
Binder |
A preferred binder for solid preparations, suitable for wet granulation, dry granulation, direct compression, and fluidized bed granulation. Especially suitable for immediate-release preparations, anhydrous preparation processes, and drugs with poor water solubility, water sensitivity, or poor compressibility. It effectively improves particle compressibility, enhances tablet adhesion and hardness, and promotes drug release. |
|
Solubilizer |
Increases the solubility of poorly soluble drug preparations and improves bioavailability. |
|
Dispersant or Co-grinding Agent |
Used as a solid dispersion carrier for solubilizing poorly soluble drugs, forming coprecipitates or co-ground solid dispersions with poorly soluble drugs. |
|
Active Ingredient Stabilizer |
Forms an amorphous dispersion complex with drugs to enhance drug stability. |
|
Suspension Stabilizer |
Improves the suspension stability of oral liquid preparations. |
|
Coating Film-Forming Agent |
An auxiliary film-forming agent, pore-forming agent, and pigment dispersant in coating materials. Reduces the viscosity of coating solutions, enhances the flexibility of the film and its binding ability to the tablet core surface, and improves the dispersibility and ductility of lakes and opacifiers. |
|
Crystallization Inhibition and Thickening |
Used as a viscosity regulator and drug solubilization stabilizer in liquid preparations. Prolongs drug action time and provides lubrication. |
|
Pore-Forming Agent |
Forms water-soluble pores in sustained-release and taste-masking solid preparations to regulate drug dissolution and release rates. |
|
Others |
Capsule glidant; stabilizer for enzymes and heat-sensitive drugs; moisturizing, thickening, and film-forming in topical preparations; various foods and health products. |
Povidone - I , Povidone-Iodine
| Product Name | Povidone - I， Povidone-Iodine |
| USP Name | Povidone - Iodine |
| EP Name | Povidone Iodinated (Povidonum Iodinatum) |
| INCI | PVP-Iodine |
| CAS NO | 25655-41-8 |
Capable of killing bacteria, viruses, and fungi, it serves as a broad-spectrum, highly effective bactericidal disinfectant. Currently, it is one of the most widely used iodine-based drugs, extensively applied for skin and oral disinfection, medical device sterilization in hospitals, as well as bactericidal disinfection in the food industry and aquaculture.
Its raw materials, solution formulations, suppositories, ointments, etc., have been listed in the United States Pharmacopeia, European Pharmacopoeia, and Chinese Pharmacopoeia.
Advantages of Povidone - I , Povidone-Iodine
Broad-Spectrum Antimicrobial Action: Povidone-iodine works well against different kinds of pathogens, including bacteria, viruses, and fungi. This broad-spectrum activity ensures that no part of an infection can escape prevention.
Rapid Effectiveness: It kills microorganisms quickly to help prevent infections and promote faster wound healing. The ability to act rapidly is essential both in clinical settings and home care.
Minimal Irritation: Compared with certain antiseptics, povidone iodine usually creates little irritation when applied to skin surfaces; hence it should be used even on sensitive areas without fear or worry.
Versatile Use: The solution can be utilized for various purposes such as wound treatment or disinfection of surgical tools before surgery among others which makes it a valuable tool in maintaining hygiene standards within hospitals while also preventing cross-contamination between patients using different beds but sharing common bathrooms facilities like toilets, showers etc.