Histamine-BSA conjugate

Very nice to receive your inquiry. Our replies are as follows.
CSB-MC00281a0105 Histamine-BSA conjugate
1. Are Quality Control tests before shipping out product?
Answer: The product was tested for titer and competition of mouse serum when immunized mice.
2. What is the shelf life for this product?
Answer: Usually at least 5 years, -20 degrees Lyophilized State preservation.
3. What applications has this product been tested in ELISA? Immune colloidal gold and Immunochromatography? If yes, can you please provide QC data for you current lot.
Answer: This product has been tested in ELISA (Serum titer and competition tests during immunization) but hasn't been tested in Immune colloidal gold and Immunochromatography.
This product can be applied in Immune colloidal gold and Immunochromatography in theory, but we haven't validated yet. Here attached is the QC data of ELISA.
Pls feel free to contact us if you have further questions.

Very nice to receive your inquiry. The country of origin of the Bovine Serum Albumin is United States.

Very nice to receive your inquiry.
1. The quality and titer of this product are quite good. We could provide a stable and long-term supply for this product.
2. Currently we have 15mg-20mg of stock for this product, so can't provide all 30-40mg from same lot. However, even if we have 30-40mg of stock, it is impossible to store the current lot for six years.
We will ensure the same production process, the consistent product parameters, and control the difference between different lots. Please confirm whether you could accept different lots.
If you are concerned about lot difference, we could produce a new lot within 10 business days and send the old lot and new lot to you together, you could evaluate the different lots.
3. The expected shelf life of this product is 2-3 years, in Lyophilized Powder, stored at -20℃. We don't suggest you to purchase 30-40mg at one time, instead, we suggest you to purchase this product regularly over 6 years. You could determine the purchase interval yourselves, for example, you could purchase 5-7mg at once time every year, or purchase monthly.
Please remark "This order is from the old customer who is conducting a six-year project."