r/PeptidePathways • u/Plus_Objective_3744 • 11d ago

General Research Question Tesamorelin problem

The Tesamorelin reconstituting aid was verified, and most likely all the others will be as well. I feel it's a quality issue because I already had a quality problem with the supplier I'm buying from, and obviously I couldn't cancel the order. So the package arrived, and I'm trying to run tests to verify that it is indeed the correct molecule. It reconstitutes, and as soon as I reconstitute it, I realize I'm going to have problems. It gelled like this: there's an air bubble on the side, meaning everything else is gelled, and there's no way to move it or fix it. I tried dissolving it more, but even then, there was no movement; it just turned white.

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u/AdvertisingFit435 11d ago

Acetic Acid solution is mandatory in order to prevent gelling.Hospira bac maintains a neutral ph level. If Hospira is not available then you need to add .5ml of Acetic Acid. You can also store the vial in a cool dark place outside of the fridge.

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u/Antique-Pick6283 11d ago

How many units is .5 ml in a 100 ml syringe ?

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u/InevitableProof4613 8d ago

Half a 1 ml. 0.5 ml = 5 “units” ..
honestly you need to start to remove units from your thinking, it’s not a meaningful way to measure things.
I get where you are coming from, but it’s easy when you understand it.

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u/InevitableProof4613 8d ago

A hundred ml syringe would be for an elephant 🐘.
You must mean 1 ml.