We would like to inform you about a specific detail regarding SR-17018 HCL Batch 01/25. During processing in our lab, we identified that in rare cases, minimal fiber residues may remain. These fibers originate from a Sigma Aldrich laboratory filter used in the final purification step.
What does this mean for you?
The filters used are designed specifically for chemical and pharmaceutical laboratory applications. They are made of highly pure, chemically inert materials (such as glass fiber or cellulose acetate), which do not interact with the product. Such filters are toxicologically harmless and represent standard practice in laboratories worldwide. Therefore, the presence of an occasional fiber has no impact on the safety, stability, or purity of the product.
Our actions
- The batch has been carefully checked and additionally filtered several times.
- The purity remains >99.98%, confirmed by our standard analysis.
- So far, no customers have reported any issues with this batch.
Our recommendation
We recommend that you visually check the material before starting your research. If you spot any fibers, they can easily be removed. This is simply a precautionary measure to support your own quality assurance.
Your options
If you are not satisfied with Batch 01/25, we are offering the following solutions:
- 100% refund of your purchase
- Re-ship starting with Batch 02/25 (exact date to be announced)
We are sharing this information proactively to ensure full transparency and quality assurance, as our goal is always to deliver the highest possible quality.
Thank you for your understanding and trust.
Frequently Asked Questions (FAQ)
Are the filter fibers harmful?
No. The filters are manufactured by Sigma Aldrich and consist of chemically inert materials such as glass fiber or cellulose acetate. These are toxicologically harmless and do not react with the product. Therefore, they do not pose any risk to your research.
Do the fibers affect purity or research results?
The purity of Batch 01/25 is >99.98% as confirmed by analysis. Occasional filter fibers have no impact on chemical purity or stability. We only recommend a quick visual check as a precaution.
How can I identify and remove fibers myself?
The fibers are very small, whitish to transparent, and can be detected by visually inspecting the material in the lab. If present, they can easily be removed manually (e.g., with tweezers) or by re-filtering.
How do I request a refund or re-ship?
If you are not satisfied with this batch, please contact our support team with your order number. You may choose between a 100% refund or a free re-ship with Batch 02/25.
When will Batch 02/25 be available?
The exact date is not yet fixed. We will keep you informed via our news section as soon as Batch 02/25 becomes available.