100 mM in H2O (adjusted to pH 7 with Trizma®
DNase, RNase, none detected
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The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.
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.
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This is a Molecular Biology grade ATP. It is certified free of DNase and RNase. This product is recommended for any typical molecular biology application.
This preparation of ATP is not recommended for use as an ATP standard. The recommended ATP products for use as a standard in bioluminescence experiments is Product Code FL-AAS (preweighed vials of 1 mg each = 2 micromole).
25UMO means 25 micromoles. The 25 UMO size is equivalent to 250 μl of a 100 mM solution. This product is a 100 mM solution in water; the solution contains no buffer or salts.
The purity of this product should be sufficient for use in T7 RNA polymerase-catalyzed in vitro transcription assay, but we do not test the product for use in that application in our quality control process.
Aqueous solutions of ATP are stable for months when frozen in solution at -15 °C and for approximately one week at 0 °C. As with most products, we guarantee the quality of this material for 1 year when stored unopened at the recommended storage temperature (-20°C in this case).
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