Abstract: Methods and systems disclosed herein are used to deliver a package or product to an alternate delivery location (ADL) for pick up by a customer or authorized retriever. The customer can register to receive delivery of a package or product with an ADL solution provider before delivery of the product, or may do so when purchasing the product. Alternatively, a product or package can be shipped from sender to an ADL for pick up by a person, outside of the context of purchasing a product. The methods and systems also offer the capability to track transported packages or products.

Abstract: Methods and systems disclosed herein are used to deliver a package or product to an alternate delivery location (ADL) for pick up by a customer or authorized retriever. The customer can register to receive delivery of a package or product with an ADL solution provider before delivery of the product, or may do so when purchasing the product. Alternatively, a product or package can be shipped from sender to an ADL for pick up by a person, outside of the context of purchasing a product. The methods and systems also offer the capability to track transported packages or products.

Abstract: Novel alkoxythiocarbonylimidazoles provide new reagents for the N-terminal sequencing of small polypeptide samples. These reagents form an alkoxy thiourea derivative which is cleaved with acid to remove the N-terminal amino acid as a stable thiazolinone which does not rearrange to a thiohydantoin. This thiazolinone may be derivatized to provide a detectable group such as a fluorescent group or ionizable group detectable by mass spectrometry.

Abstract: A method for the C-terminal sequencing of a peptide in which an alkyl or aryl tin isothiocyanate coupling reagent is used to form a thiohydantoin derivative. Free halogen producing activating agents, such as 2-halo-1-methyl pyridinium salts, may be used as an activating agent for the coupling reagent.