If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
The molecular weight for product D1626 has not been determined. In general, the reference J.A.C.S., vol. 118, 10679 (1996), reports the molecular weight to be 1.3 million or around 2,000 base pairs.
Sigma tests solubility in water at 2 mg/mL. To prevent shearing of the large genomic DNA, this product should be dissolved in water (1 mg/mL) with no sonication or stirring. Gentle inversion overnight at 0-4 °C is recommended to completely solubilize the DNA. The presence of 1 mM EDTA is recommended to prevent nucleases from degrading the DNA.
Solutions of DNA have been stored successfully for several months at 4°C, in 10 mM Tris, pH 7.5 - 8.0, with 1 mM EDTA and without a bacteriostatic agent.
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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