Complaint
| Test Item | Specification | Result | |
| Description and solubility | Practically white, crystalline powder. Very slightly soluble in water and in alcohol | Conforms | |
| Identification | A Infrared absorption | To match with the reference IR spectrum | Conforms |
| B Specific optical rotation | Meets the requirements | Conforms | |
| C HPLC | The retention time of the major peak of the sample solution corresponds to that of the standard solution,as obtained | Conforms | |
| Assay | 97.5% ~ 102% | 99.2% | |
| Related Compounds | Individual impurity ≤ 1.0% | 0.16% | |
| Total impurities ≤ 2.0% | 0.16% | ||
| Optical Rotation | +89°~ +93° | +91° | |
| Residual solvents(Toluene) | ≤ 890ppm | < 20ppm | |
| Category | Product Name | CAS No. |
| VITAMIN A | Vitamin A Acetate Oil 1.0/2.0/2.5 MIU | 127-47-9 |
| Vitamin A Palmitate Oil 1.0/1.6/1.7 MIU | 79-81-2 | |
| Vitamin A Palmitate Powder CWD 325/500 | 79-81-2 | |
| VITAMIN B | D-Panthenol | 81-13-0 |
| VITAMIN C | Ascorbic Acid | 50-81-7 |
| VITAMIN D | Vitamin D3 Oil 1.0M/4.0M | 67-97-0 |
Vitamin D3 crystals/ powder100/500 IU/g | 67-97-0 | |
| VITAMIN E | All-Rac-Alpha-Tocopherol 96% | 1406-18-4 |
| all-rac-Alpha-Tocopheryl Acetate/VE Oil 98% | 7695-91-2 | |
| all-rac-Alpha-Tocopheryl Acetate Powder 50%CWS | 7695-91-2 | |
| Natural Vitamin E(D-alpha Tocopheryl Acetate 1100IU~1360 IU/g) | 58-95-7 | |
| D-Alpha-Tocopheryl Acetate Powder 50%CWS 500~700 IU/g,CWD,TAB | 58-95-7 | |
| Mixed tocopherols 50% | 1406-18-4 | |
| Mixed tocopherols 70% | 1406-18-4 | |
| Mixed tocopherols Powder 30% | 1406-18-4 | |
| D-Alpha-Tocopherol 1000~1430 IU/g | 1406-18-4 | |
| D-alpha Tocopheryl acid Succinate 1185/1210 IU/g | 4345-03-3 | |
| VITAMIN H | 1%/2%/99% Biotin | 58-85-5 |
Ningbo Newrainbow Biochemicals Co.,Ltd. is an Eastern China-based import and export company dealing with Amino acids, Vitamins, Plant Extracts and all the other Ingredients which are widely used in pharmaceutical, nutraceutical, food and cosmetical industry. Started in the year of 2012, we understand the importance of timely shipping and have built our business around reliable services. From beginning to the end, our customers know that they can trust our team to deliver only the highest quality customer service.
Ningbo is a beautiful city and also an ancient harbour city. It is an important trading port and today with 1.2 billion tons of freight the biggest harbour all over the world. And only 2 hours drive to Shanghai city. Thanks to the big advantages of location, we have very good partners of logistic solution to eliminate all of customers supply chain inefficiencies for you.
Our young company started from the year of 2012, we have developed very good partnership with a lot of manufacturers here and many esteemed customers abroad.All the manufacturers we cooperated are carefully screened and we go to their plant often in case of inspection for some purpose. Certificates such like KOSHER/HALAL/FSSC are all available.
1.Strictly quality inspection before delivery
2.Very good logistics and transportation service
3.Good payment terms
4.Good communication
