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50981

Sigma-Aldrich

Guanidine thiocyanate

BioReagent, ≥99%

Synonym(s):

Guanidinium rhodanide, Guanidinium thiocyanate

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About This Item

Linear Formula:
NH2C(=NH)NH2 · HSCN
CAS Number:
Molecular Weight:
118.16
Beilstein/REAXYS Number:
3563461
EC Number:
MDL number:
UNSPSC Code:
12352107
PubChem Substance ID:
NACRES:
NA.52
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biological source

synthetic

Quality Level

grade

Molecular Biology

product line

BioReagent

assay

≥99%

form

powder

technique(s)

RNA extraction: suitable

impurities

DNases, none detected
RNases, none detected
phosphatases, none detected
proteases, none detected

color

colorless to white,

mp

115-122 °C
120-122 °C (lit.)

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Application

Chaotropic agent and strong denaturant; solubilizes cells.
Guanidine thiocyanate has been used as a component of the stabilization buffer for RNA lysis. It can be used for deactivation of endogenous RNases leading to denaturation of nucleoprotein complexes. It is also suitable for denaturation of macromolecules such as nucleic acids and proteins and for RNA isolation.

Biochem/physiol Actions

Guanidine thiocyanate (GTC) plays a role in protein denaturation. It is involved in separation of ribosomal ribonucleic acid (rRNA) from ribosomes and denatures ribonuclease (RNase). GTC has been studied in the unfolding and refolding of fluorescent proteins (FP). It can be used along with phenol and chloroform for extraction of RNA.

Principle

Guanidine thiocyanate interferes with the hydrogen bonds and intramolecular interactions of macromolecules. It solubilizes the proteins resulting in disintegration of cellular structures.

pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1C

supp_hazards

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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