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50983

Sigma-Aldrich

Guanidine thiocyanate solution

BioUltra, for molecular biology, ~6 M in H2O

Synonym(s):
Guanidine isothiocyanate, Guanidinium isothiocyanate, Guanidinium rhodanide, Guanidinium thiocyanate
Linear Formula:
NH2C(=NH)NH2 · HSCN
CAS Number:
Molecular Weight:
118.16
Beilstein:
3563461
MDL number:
PubChem Substance ID:
NACRES:
NA.25

grade

for molecular biology

Quality Level

product line

BioUltra

concentration

~6 M in H2O

impurities

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected

refractive index

n20/D 1.474-1.483

pH

4.5-7.0 (25 °C)

anion traces

chloride (Cl-): ≤500 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤1 mg/kg
As: ≤0.1 mg/kg
Ba: ≤1 mg/kg
Bi: ≤1 mg/kg
Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Li: ≤1 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Mo: ≤1 mg/kg
Na: ≤500 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Sr: ≤1 mg/kg
Zn: ≤1 mg/kg

absorption

cut-off at 280 nm

SMILES string

SC#N.NC(N)=N

InChI

1S/CH5N3.CHNS/c2-1(3)4;2-1-3/h(H5,2,3,4);3H

InChI key

ZJYYHGLJYGJLLN-UHFFFAOYSA-N

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1 of 4

This Item
G92775098011685929001
Guanidine thiocyanate for molecular biology, ≥99%

Sigma-Aldrich

G9277

Guanidine thiocyanate

Guanidine thiocyanate BioUltra, for molecular biology, ≥99.0% (AT)

Sigma-Aldrich

50980

Guanidine thiocyanate

product line

BioUltra

product line

-

product line

BioUltra

product line

-

concentration

~6 M in H2O

concentration

-

concentration

-

concentration

-

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected

impurities

-

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected

impurities

-

cation traces

Al: ≤1 mg/kg, As: ≤0.1 mg/kg, Ba: ≤1 mg/kg, Bi: ≤1 mg/kg, Ca: ≤5 mg/kg, Cd: ≤1 mg/kg, Co: ≤1 mg/kg, Cr: ≤1 mg/kg, Cu: ≤1 mg/kg, Fe: ≤1 mg/kg, K: ≤20 mg/kg, Li: ≤1 mg/kg, Mg: ≤1 mg/kg, Mn: ≤1 mg/kg, Mo: ≤1 mg/kg, Na: ≤500 mg/kg, Ni: ≤1 mg/kg, Pb: ≤1 mg/kg, Sr: ≤1 mg/kg, Zn: ≤1 mg/kg

cation traces

Ba: ≤5 ppm, Fe: ≤5 ppm, Na: ≤0.5%, heavy metals (as Pb): ≤5 ppm

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤5000 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

cation traces

-

refractive index

n20/D 1.474-1.483

refractive index

-

refractive index

-

refractive index

-

General description

Guanidine thiocyanate is a chaotropic agent that functions as a strong protein denaturant. It is widely used in RNA isolation protocols. Guanidine thiocyanate can irreversibly inactivate RNase and DNase and breaks cellular membranes. It dissolves proteins by disturbing their secondary structures. Guanidine thiocyanate also separates nucleoproteins from nucleic acids and aids the digestion of the proteins with proteases. It improves the activity of proteinase K thus making it the protease of choice.

Application

Guanidine thiocyanate solution has been used to extract:
  • plasma RNA from human immunodeficiency virus (HIV)-infected and control patients
  • total RNA from collected tissues (shoots, flowers, fruits, and seeds)
  • in reverse transcription-polymerase chain reaction (RT-PCR) analysis, RNA from teratocarcinoma cell line (Tera-1)

Caution

possibly crystallized product can be dissolved again by slightly heating to 40-50 °C.

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Classifications

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

Supplementary Hazards

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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