| Customization: | Available |
|---|---|
| CAS No.: | 79902-63-9 |
| Type: | The First Class |
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| Items | Specifications | Results |
| Appearance | White or almost white, crystalline powder | White crystalline powder |
| Specific rotation | Meet the requirement | Complies |
| IR | IR spectrum of sample conforms to that of the reference standard | Complies |
| Appearance of solution | The solution is clear and not more intensely colored than reference solution BY7 | Complies |
| Specific optical rotation | +285o~+300o | +288.4o |
| Sum of impurities E and F | Not more than 1.0% | 0.26% |
| Sum of Impurities B and C | Not more than 0.8% | 0.18% |
| Impurity A | Not more than 0.4% | 0.03% |
| Impurity D | Not more than 0.4% | 0.17% |
| Impurity G | Not more than 0.4% | 0.13% |
| Unspecified impurity | Not more than 0.10% | 0.08% |
| Sum of impurities (other than E and F ) | Not more than 1.0% | 0.72% |
| Heavy mentals | Not more than 20ppm | Less than 20ppm |
| Loss on drying | Not more than 0.5% | 0.08% |
| Sulfated ash | Not more than 0.1% | 0.03% |
| Ethanol | Not more than 5000ppm | 588ppm |
| Assay (on the dried basis ) | 97.0% to 102.0% of C25H38 O5 | 100.10% |
| Conclusion | The results conform with the specifications | |
FAQ:
Q1: Can I get samples?
A: Yes, we can provide you with free samples, but the freight needs to be paid by you, I hope you can understand.
Q2: How to pay?
A: PI will be sent firstly after our aligned products specification. Payment by Paypal , T/T, Western Union,LC, are ok.
Q3: How is your MOQ?
A: Normally speaking, our MOQ is 1kg. But we can also accept less quantity such as 100g on the condition that sample charge is100% paid.
Q4: How can you guarantee the quality of your products ?
1. Our staff are all experienced in chemical products or related major background, they are well trained before quotation.
2. Free sample or pre-shipment sample are available for our new cooperation before you place commercial order. We are sure the same specification commercial products as sample to customers
3. Third Party Inspection like SGS can be arranged according to your requirement before shipping.
4. On-Spot QC in our APPROVED associated production bases with necessary certification like GMP, ISO etc.
Q5:How is your after-sales service?
A: If you have any technical or quality problems after receiving the goods, you can always contact us. If the problem is caused by us, we will send you the goods for free or refund your loss.
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