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Guanidine Hydrochloride CAS 50-01-1
Guanidine Hydrochloride/HCL CAS 50-01-1 is white crystalline powder (medical grade) or white or light yellow lump (technical grade). Guanidine HCL is a powerful, chaotropic agent which is widely used for purification of proteins and nucleic acids. Guanidine Hydrochloride is useful for denaturation and refolding of proteins as well as in the recovery of periplasmic proteins and isolation of RNA.
Kojic acid CAS 501-30-4 is a chelation agent produced by several species of fungi, especially Aspergillus oryzae. It is a mild inhibitor of the formation of pigment in plant and animal tissues, and is used in food and cosmetics to preserve or change colors of substances. It forms a bright red complex with ferric ions.