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Guanidinium chloride - Wikipedia
Guanidine Hydrochloride | CH5N3.ClH | CID 5742 - PubChem
Guanidine, 50-01-1, Molecular Biology, G3272, Sigma-Aldrich
Guanidine hydrochloride, 50-01-1, High-Purity, G4505, Sigma ...
Guanidine - Wikipedia
Guanidine hydrochloride 99% | Sigma-Aldrich - MilliporeSigma
Guanidine | CH5N3 | CID 3520 - PubChem