Methods for synthesizing a mercaptan compound include the steps of contacting a nickel-molybdenum catalyst with H.sub.2S at a sulfiding temperature of less than or equal to 235 C. to form a supported sulfur-containing catalyst, and then contacting an alcohol compound or an olefin compound, H.sub.2S, and the supported sulfur-containing catalyst to form a reaction mixture containing the mercaptan compound.

The present disclosure provides a bifunctional linker for coupling at least one functional moiety, preferably a bis-allyl propionic acid (BAPA), to a polymer-containing matrix. Also disclosed by the present disclosure are anhydrides of the bifunctional linker, processes for preparing the bifunctional linker and such anhydride, as well as surfaces, such as cellulose containing matrices, coupled with the bifunctional linker, at times, the latter carrying a functional agent.

The present disclosure provides a bifunctional linker for coupling at least one functional moiety, preferably a bis-allyl propionic acid (BAPA), to a polymer-containing matrix. Also disclosed by the present disclosure are anhydrides of the bifunctional linker, processes for preparing the bifunctional linker and such anhydride, as well as surfaces, such as cellulose containing matrices, coupled with the bifunctional linker, at times, the latter carrying a functional agent.

Compounds and methods for use in detecting gabapentin in a sample suspected of containing gabapentin are disclosed. Gabapentin derivatives are used to produce gabapentin conjugates. A gabapentin-immunogenic carrier conjugate may be used as an immunogen for the preparation of an anti-gabapentin antibody. A gabapentin-detectable label may be used in a signal producing system in gabapentin assays.

Compounds and methods for use in detecting gabapentin in a sample suspected of containing gabapentin are disclosed. Gabapentin derivatives are used to produce gabapentin conjugates. A gabapentin-immunogenic carrier conjugate may be used as an immunogen for the preparation of an anti-gabapentin antibody. A gabapentin-detectable label may be used in a signal producing system in gabapentin assays.

A method for producing a polythiol compound includes reacting a polyol compound with thiourea in which a content of ammonium thiocyanate is 0.05% by mass or less to obtain an isothiuronium salt.

Compounds and methods for use in detecting gabapentin in a sample suspected of containing gabapentin are disclosed. Gabapentin derivatives are used to produce gabapentin conjugates. A gabapentin-immunogenic carrier conjugate may be used as an immunogen for the preparation of an anti-gabapentin antibody. A gabapentin-detectable label may be used in a signal producing system in gabapentin assays.

Compounds and methods for use in detecting gabapentin in a sample suspected of containing gabapentin are disclosed. Gabapentin derivatives are used to produce gabapentin conjugates. A gabapentin-immunogenic carrier conjugate may be used as an immunogen for the preparation of an anti-gabapentin antibody. A gabapentin-detectable label may be used in a signal producing system in gabapentin assays.

The invention relates to a process for preparing methyl mercaptan from a mixture of carbon oxide, hydrogen sulfide and hydrogen, in the presence of a catalyst based on molybdenum and potassium supported on zirconia, said catalyst not comprising any promoter.

The invention relates to a process for preparing methyl mercaptan from a mixture of carbon oxide, hydrogen sulfide and hydrogen, in the presence of a catalyst based on molybdenum and potassium supported on zirconia, said catalyst not comprising any promoter.