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Description
Endocrine, 15 (1), 9195

The alcohol acts as a preservative, preventing the growth of bacteria in the vial after it has been punctured
In-vitro -Zytotoxizittsstudien besttigen die Abwesenheit von Zelltoxizitt bei physiologischen und supraphysiologischen Konzentrationen
Extended Notes for Catalog Use A preserved aqueous solvent simplifies multi-step preparation by allowing controlled repeated access to the vial

While this represents a reasonable duration for clinical trials, it provides limited information about safety with years-long continuous use

It is about protecting a financial investment
