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Guanidine hydrochloride

Guanidine hydrochloride chemical structure
CAS Number50-01-1
FormulaNH2C(=NH)NH2 · HCl
Mol. Weight95.53 g/mol

What is Guanidine hydrochloride?

Guanidine hydrochloride is a chemical compound with CAS number 50-01-1 and molecular formula NH2C(=NH)NH2 · HCl. It is used in various industrial and research applications.

Applications

Strong chaotropic agent useful for the denaturation and subsequent refolding of proteins. This strong denaturant can solubilize insoluble or denatured proteins such as inclusion bodies. This can be used as the first step in refolding proteins or enzymes into their active form. Urea and dithiothreitol (DTT) may also be necessary.

Specifications

Linear Formula

NH2C(=NH)NH2 · HCl

Molecular Weight

95.53 g/mol

Grade

for molecular biology

Assay/Purity

≥99.0%

Impurities

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

Density

1.18 g/mL at 25 °C(lit.)

Solubility

H2O: soluble6 M at 20 °C, clear, colorless

Safety Information

GHS07GHS07
Signal Word

Warning

Hazard Statements

H302-H315-H319

Precautionary Statements

P305 + P351 + P338

Required PPE

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Melting Point

180-185 °C(lit.)

Ignition Residue

≤0.05% (as SO4)

Anion Traces

sulfate (SO42-): ≤50 mg/kg

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: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

EC Number

200-002-3

WGK Germany

1

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