OEM/ODM China Gotu Kola Extract - White Willow Bark Extract – Ruiwo
OEM/ODM China Gotu Kola Extract - White Willow Bark Extract – Ruiwo Detail:
Product Description
Product Name: White Willow Bark Extract
Category: Plant Extracts
Effective components: Salicin
Product specification: 98%
Analysis: HPLC
Quality Control: In House
Formula: C13H18O7
Molecular weight: 286.28
CAS No: 138-52-3
Appearance: white crystal powder
Identification: Passes all criteria tests
Product Function: White Willow Bark Powder help reduce pain, reduce fever, anti-inflation.
Storage: keep in cool and dry place, well-closed, away from moisture or direct sunlight.
Certificate of Analysis
| Product name |
Salicin |
Botanical Source | White willow (Salix) bark |
| Batch NO. |
RW-SA20210507 |
Batch Quantity | 1000 kgs |
| Manufacture Date |
May 3. 2021 |
Expiration Date | May 9. 2021 |
| Solvents Residue |
Water&Ethanol |
Part Used | Bark |
| ITEMS | SPECIFICATION | METHOD | TEST RESULT |
| Physical&Chemical Data | |||
| Color | White | Organoleptic | Conforms |
| Ordour | Characteristic | Organoleptic | Conforms |
| Appearance | Crystal Powder | Organoleptic | Conforms |
| Analytical Quality | |||
| Assay(Salicin) | ≥98% | HPLC | 98.16% |
| Loss on Drying | 5.0% Max. | Eur.Ph.7.0 [2.5.12] | 2.21% |
| Total Ash | 5.0% Max. | Eur.Ph.7.0 [2.4.16] | 1.05% |
| Sieve | 100% pass 80 mesh | USP36<786> | Conforms |
| Solvents Residue | Meet Eur.Ph.7.0 <5.4> | Eur.Ph.7.0 <2.4.24> | Conforms |
| Pesticides Residue | Meet USP Requirements | USP36 <561> | Conforms |
| Heavy Metals | |||
| Total Heavy Metals | 10ppm Max. | Eur.Ph.7.0 <2.2.58> ICP-MS | Conforms |
| Lead (Pb) | 2.0ppm Max. | Eur.Ph.7.0 <2.2.58> ICP-MS | Conforms |
| Arsenic (As) | 1.0ppm Max. | Eur.Ph.7.0 <2.2.58> ICP-MS | Conforms |
| Cadmium(Cd) | 1.0ppm Max. | Eur.Ph.7.0 <2.2.58> ICP-MS | Conforms |
| Mercury (Hg) | 0.5ppm Max. | Eur.Ph.7.0 <2.2.58> ICP-MS | Conforms |
| Microbe Tests | |||
| Total Plate Count | NMT 1000cfu/g | USP <2021> | Conforms |
| Total Yeast & Mold | NMT 100cfu/g | USP <2021> | Conforms |
| E.Coli | Negative | USP <2021> | Negative |
| Salmonella | Negative | USP <2021> | Negative |
| Packing&Storage | Packed in paper-drums and two plastic-bags inside. | ||
| N.W: 25kgs | |||
| Store in a well-closed container away from moisture, light, oxygen. | |||
| Shelf life | 24 months under the conditions above and in its original packaging. | ||
Application of Salicin
1. White Willow Bark Extract Powder has been used for centuries as a pain reliever.
2. White Willow Powder as an alternative to aspirin, particularly those that experience chronic headaches or back pain.


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Our company sticks into the basic principle of "Quality is definitely the life of the business, and status may be the soul of it" for OEM/ODM China Gotu Kola Extract - White Willow Bark Extract – Ruiwo , The product will supply to all over the world, such as: Spain, Japan, United States, The development of our company not only needs the guarantee of quality, reasonable price and perfect service, but also relies on our customer's trust and support! In the future, we are going to continue with the most qualified and high quality service to offer the most competitive price, Together with our customers and achieve win-win! Welcome to inquiry and consult!
This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.


