Introduction: Guanidine isothiocyanate is in white crystalline form, with melting point of 116~121 ℃. At 20 ℃, the PH value of 6mol/L in water is 4.5~6, and the solubility is complete dissolution. It is a kind of decoupling agent, a kind of strong protein denaturant, which can dissolve the protein, make the secondary structure of the protein disappear, degrade the cell structure, and rapidly separate the nuclear protein from the nucleic acid. Used for denatured lysed cells; Rna and dna were extracted without rnase and dnase activity
Use: Guanidine thiocyanate can be used as biochemical reagent and pharmaceutical intermediate. It is used for degreasing in oil and fat industry, as a strong fat degradation agent in daily chemical industry, and as a cell membrane breaking agent in biopharmaceuticals.
Application in the field of chemical depilatory agent: chemical depilatory agent is a kind of depilatory agent that can soften hair, reduce hair strength, and wipe off or wash off hair in 2~6 minutes. Because the composition of hair dry is similar to that of skin, chemical depilatory agents will inevitably damage the skin, so depilatory agents are listed as cosmetics for special purposes. Mercaptoacetic acid unhairing agent is the main unhairing agent nowadays, which gradually replaces sulfide unhairing agent. The depilatory active substances used in this type of depilatory agent are mercaptoacetic acid and its salts, mercaptopropionic acid and its salts, mercaptolactic acid and its salts. In terms of performance and price, thioglycolic acid and its salts are mainly used as depilatory active substances. The application of some swelling agents can help speed up the depilation of sulfhydryl compound depilators, thus reducing the irritation to skin. Such swelling agents include melamine, dicyanodimide or a mixture of both (w=0.5%~2%), thiourea, potassium thiocyanate, guanidine thiocyanate and PVP copolymer.
Research purpose: guanidine thiocyanate has been used: • Splitting colorectal adenocarcinoma cell lines before RNA separation • As a PCR inhibitor for triple mitochondrial DNA (mtDNA) qPCR detection, guanidine thiocyanate is a denaturant, commonly used for RNA separation. It is used as a storage buffer for whole blood samples. Guanidine thiocyanate can inactivate nuclease and is an ideal choice for storing and freezing fecal samples for DNA research. Used in combination with phenol-chloroform in RNA extraction
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