MEK: 50 mg/mL
cell membrane | interferes
Merck & Co., Inc., Kenilworth, NJ, U.S.
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Acute Tox. 1 Oral - Acute Tox. 3 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Repr. 1B
6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
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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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.
This product is a mixture of two submoieties B1A, MW 891.1 and B1B, MW 877.1. It is typically predominantly B1A, so you may use a molecular weight of 890 in your calculations.
Stock solutions of Ivermectin in DMSO at a concentration of 10 mM have been found to be stable for 2 weeks at -20°C, according to Shan, Q., et al., in Ivermectin, an Unconventional Agonist of the Glycine Receptor Chloride Channel. J. Biol. Chem., 276(16), 12556-12564 (2001).
Unfortunately we do not test each lot to determine the composition. In the past, lots have been ~95% B1A and ~5% B1B; however there will be lot-to-lot variation.
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