Merck
All Photos(5)

50940

Sigma-Aldrich

Guanidine hydrochloride

≥99.0% (AT)

Synonym(s):
Aminoformamidine hydrochloride, Aminomethanamidine hydrochloride, Guanidinium chloride
Linear Formula:
NH2C(=NH)NH2 · HCl
CAS Number:
Molecular Weight:
95.53
Beilstein:
3591990
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.55

Quality Level

assay

≥99.0% (AT)

form

solid

ign. residue

≤0.1% (as SO4)

pH

(25 °C, 4.6 - 6/573 g/L)

mp

180-185 °C (lit.)

solubility

H2O: 6 M at 20 °C, clear, colorless

density

1.3 g/cm3 (lit.)

anion traces

sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤20 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
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

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

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Packaging

100 g in glass bottle
500 g in poly bottle
1 kg in poly bottle
10 g in poly bottle
5 kg in poly drum

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.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More Documents

Quotes and Ordering

D T Gruszka et al.
Science advances, 6(38) (2020-09-20)
During replication, nucleosomes are disrupted ahead of the replication fork, followed by their reassembly on daughter strands from the pool of recycled parental and new histones. However, because no previous studies have managed to capture the moment that replication forks
Lizhen Qiao et al.
Journal of chromatography. A, 1276, 112-119 (2013-01-15)
Room temperature ionic liquids (RTILs) as stationary phases for gas chromatography (GC) have made great achievements in both research and applications over the last decades. Until now, all of the RTIL stationary phases reported have involved imidazolium, ammonium, pyrrolidinium, and
Caitriona McKeever et al.
Journal of medicinal chemistry, 56(3), 700-711 (2013-01-11)
Considering the strong DNA minor groove binding observed for our previous series of diaromatic symmetric and asymmetric guanidinium and 2-aminoimidazolinium derivatives, we report now the synthesis of new aminoalkyl derivatives of diaromatic guanidines with potential as DNA minor groove binders
Masaatsu Adachi et al.
The Journal of organic chemistry, 78(4), 1699-1705 (2013-01-18)
We describe an improved synthesis of (-)-5,11-dideoxytetrodotoxin from an enone, which was used for synthesis of tetrodotoxin and its analogues in this laboratory. One of the major modifications was to establish a two-step guanidinylation of trichloroacetamide of a highly functionalized
Stefan J Kempf et al.
PloS one, 9(10), e110464-e110464 (2014-10-21)
Patients suffering from brain malignancies are treated with high-dose ionising radiation. However, this may lead to severe learning and memory impairment. Preventive treatments to minimise these side effects have not been possible due to the lack of knowledge of the

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