153-155 °C (lit.)
water: 50 mg/mL, clear to very slightly hazy, colorless to faintly yellow
human ... NOS1(4842), NOS2(4843), NOS2B(201288), NOS2C(645740), NOS3(4846), RELA(5970)
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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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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.
Ammonium pyrrolidinedithiocarbamate is soluble in water at a concentration of approximately 50 mg/mL.
Sigma-Aldrich has not performed a controlled solution stability test on PDTC. However, we have found that aqueous stock solutions are typically stable for at least one month when stored at -20 °C.
PDTC has been reported to repress vascular cell adhesion molecule-1 (VCAM-1) activation by Interleukin-1β in cultured human umbilical vein endothelial calls. Marui, M., et al., J. Clin. Invest, 92, 1866 (1993). It inhibits the induction of nitric oxide synthase activity in rat alveolar macrophages. Sherman, M.P., et al., Biochem. Biophys. Res. Commun. 191, 1301-1308 (1993). It is an Inhibitor of nuclear factor kappa B., Eberhardt, et al. Biochem. Biophys. Res. Commun. 200, 163 (1994). PDTC at 100 μM, totally inhibited the NF-kappa B response in intact cells. Schreck, R., et al., J. Exp. Med. 175 , 1181-1194 (1992). It activates cAMP-dependent protein kinase (PKA) in a colorectal cancer cell line. Chinery, R., et al., J. Biol. Chem., 272, 30356 - 30361, (1997).
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