50935

Guanidine hydrochloride

BioUltra, ≥99.5% (AT)

• Synonym(s): Aminoformamidine hydrochloride, Aminomethanamidine hydrochloride, Guanidinium chloride
• Linear Formula: NH₂C(=NH)NH₂ · HCl
• CAS Number: 50-01-1
• Molecular Weight: 95.53
• EC Number: 200-002-3
• UNSPSC Code: 12352200
• PubChem Substance ID: 24873454
• Beilstein/REAXYS Number: 3591990
• MDL number: MFCD00013026

Properties

• product line: BioUltra
• assay: ≥99.5% (AT)
• impurities: insoluble matter, passes filter test
• ign. residue: ≤0.05% (as SO₄)
• loss: ≤0.05% loss on drying, 20 °C (HV)
• pH: 4.5-6.0 (25 °C, 6 M in H₂O)
• mp: 180-185 °C (lit.)
• solubility: H₂O: 6 M at 20 °C, clear, colorless
• density: 1.3 g/cm³ (lit.)
• anion traces: sulfate (SO₄^2-): ≤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
• λ: 6 M in H₂O
• UV absorption: λ: 260 nm A_max: 0.03, λ: 280 nm A_max: 0.02
• SMILES string: Cl[H].NC(N)=N
• InChI: 1S/CH5N3.ClH/c2-1(3)4;/h(H5,2,3,4);1H
• InChI key: PJJJBBJSCAKJQF-UHFFFAOYSA-N

Description

Application

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.

Other Notes

In the extraction and fractionation by cesium sulfate density gradient centrifugation of bovine nasal cartilage proteoglycan; Induces subunit dissociation and unfolding of bovine liver glutamate dehydrogenase; Dissociation of apolipoproteins of insect lipophorin; Denaturation curve.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302 + H332,H315,H319
• pcodes: P261 - P264 - P301 + P312 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2
• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves