OEM Manufacturer Steviol Extract - White Willow Bark Extract – Ruiwo
OEM Manufacturer Steviol 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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The corporation upholds the philosophy of "Be No.1 in high quality, be rooted on credit rating and trustworthiness for growth", will continue to serve outdated and new consumers from home and overseas whole-heatedly for OEM Manufacturer Steviol Extract - White Willow Bark Extract – Ruiwo , The product will supply to all over the world, such as: Peru, Singapore, Nicaragua, Our products are very popular in the word, like South American, Africa, Asia and so on. Companies to "create first-class products" as the goal, and strive to deliver customers with high quality solutions, present high-quality after-sales service and technical support, and customer mutual benefit, create a better career and future!
We have been cooperated with this company for many years, the company always ensure timely delivery ,good quality and correct number, we are good partners.



