Identification | Standardization | Result |
Aspect | Light yellow powder | Confirms |
Identification | The retention time of the peak for alpha lipoic acid in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the standard preparation,as obtained in the Assay |
Confirms
|
Specific optical rotation | -1.0°~+1.0° | 0.6° |
Melting point | 60-62°C | 61°C |
Loss on drying | 0.2% max. | 0.19% |
Bulk density | ≥0.60 g/ml | Confirms |
Polymer content | 2% max. | Confirms |
6-8-epitrithiooctanoic acid | 0.2% max. | Non detectable |
Heavy metals | ≤10ppm | Confirms |
Chloride | ≤0.07% | Confirms |
Limit of polymer content | ≤2.0% | Confirms |
Residual of Cyclohexanes | ≤500ppm | Confirms |
Residual of Ethyl Acetates | ≤250ppm | Confirms |
Residual of Toluenes | ≤20ppm | Confirms |
Can I get a samples to test? |
Yes, we can provide 10-20 g sample for your testing, please contact us for more details. + |
What's your MOQ? |
Our MOQ is 1kg. (Packed in aluminum foil bag) + |
How can i buy? |
Proforma invoice will be sent first after confirmation of your purchase order,enclosed our bank information.Payment by T/T,Western Union or Paypal. + |
How can you confirm your quality?If problem happen,how you treat with your client? |
You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and to get the samples. You can send us your product specifications and requests, we will manufacture the products according to your requests. + |
How do you treat with quality complaint? |
All of products are strictly tested by our QC, and confirmed by QA. We do test for products to make sure all of them are qualified. In case any quality problem is confirmed to be caused by us,we will replace the goods or refund your payment immediately. + |
What's the delievry time? |
Usually 3 working days for small orders,and large orders need to be checked based on different products. |