I've been trying and failing to obtain cell-culture grade crude TSH (probably bovine) for propagation of laboratory thyroid cell lines (ie. FRTL5) - Merck / Sigma had a suitable product in their catalogue that they deleted after I placed the order, and other companies with TSH listed are also responding that it has ceased production.
Other sources are hideously expensive - literally tens of thousands of dollars for an amount needed for 1L of culture medium because they are therapeutic grade. This is not what I need - the experiments would not be financially viable.
Does anyone know a commercial supplier with a viable and cost-effective source of Thyrotropin / bTSH?
Dear Robin Dickinson:
I am sorry, but no, I do not have the answerto your problem.
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