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c/coldchain·submitted 6 months ago by u/coldchain_karen

[Discussion] can we stop arguing about lyophilised until somebody posts a number

Discussionbranch of 4 comments

I have had 7 orders now and I keep a table, so here is the honest summary rather than a vibe. Material has been consistent. Communication has not. Shipping has varied by about 12 days on nominally the same lane, which matters more in summer than in February. The independent number came back 96.8% against a claimed…

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4 comments, started 6 months ago
u/low_appetite_lisa69 points·6 months ago

Yeah, data logger is the only acceptable proof.

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u/sequence_checkerresearch peptides32 points·6 months ago

stability after excursion is not zero, it is dose-dependent

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u/emeka_beaulieu14 points·6 months ago

stability after excursion is not zero, it is dose-dependent

Disagree on that part. 99.2% and 99.3% on the same vial is normal.

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u/hugo_bergstrom11 points·6 months ago·edited

Strongly agree. Peak temperature is not the whole story.

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Temperature and stability in the real world: what an excursion actually costs you, why lyophilised powder is far more forgiving than reconstituted solution, how to read a logger CSV, and how to photograph a failed shipment so the conversation with the vendor is short.

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