Is there any way to detect bad quality MT2 by sight?

[Happyvoyager]

I have a vial of MT2 that I am not sure about.
Its from Megatan for a start, and Ive heard bad reports.
It looks different than the first vial I got - which has caused no side effects or caused any worry.

The little lump in the jar looks rough edged and dusty looking, and the vial is covered in a thin film of white dusty stuff.

Any way to say if the vial looks right or is it a gamble?

TA!

[Semin]

Unfortunately there are no ways to visually inspect the quality of MT-2. Freeze dried peptides will vary from vial to vial, batch to batch, synthesizer to synthesizer.... The two primary clues to analyze for quality control is HPLC & MS laboratory testing (which costs hundreds of dollars to perform).