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C1115

Sigma-Aldrich

Chrysamine G

≥95% (HPLC), solid

Synonym(s):

4,4′-Bis(3-carboxy-4-hydroxyphenylazo)biphenyl disodium salt

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10 MG
CZK 5,480.00
25 MG
CZK 12,000.00

CZK 5,480.00

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10 MG
CZK 5,480.00
25 MG
CZK 12,000.00

About This Item

Empirical Formula (Hill Notation):
C26H16N4Na2O6
CAS Number:
6472-91-9
Molecular Weight:
526.41
MDL number:
MFCD00045823
UNSPSC Code:
12352116
PubChem Substance ID:
24724433
NACRES:
NA.77

CZK 5,480.00

Please contact Customer Service for Availability
Request a Bulk Order

Assay

≥95% (HPLC)

form

solid

color

orange

solubility

DMSO: ~4 mg/mL

storage temp.

−20°C

SMILES string

[Na+].[Na+].Oc1ccc(cc1C([O-])=O)N=Nc2ccc(cc2)-c3ccc(cc3)N=Nc4ccc(O)c(c4)C([O-])=O

InChI

1S/C26H18N4O6.2Na/c31-23-11-9-19(13-21(23)25(33)34)29-27-17-5-1-15(2-6-17)16-3-7-18(8-4-16)28-30-20-10-12-24(32)22(14-20)26(35)36;;/h1-14,31-32H,(H,33,34)(H,35,36);;/q;2*+1/p-2

InChI key

AZOPGDOIOXKJRA-UHFFFAOYSA-L

General description

Chrysamine G is a carboxylic acid derivative of Congo red.[1]

Biochem/physiol Actions

Chrysamine G can penetrate the blood-brain barrier. It is useful in quantifying cerebral amyloid β (Aβ) deposition in Alzheimer′s disease (AD) pathological studies.[1]
New probe for ß-amyloid aggregates.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000247047
0000247047
0000187029
0000187028
0000163829

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V Heiser et al.
Proceedings of the National Academy of Sciences of the United States of America, 97(12), 6739-6744 (2000-06-01)
The accumulation of insoluble protein aggregates in intra and perinuclear inclusions is a hallmark of Huntington's disease (HD) and related glutamine-repeat disorders. A central question is whether protein aggregation plays a direct role in the pathogenesis of these neurodegenerative diseases.
Eleonora Di Zanni et al.
Neurobiology of disease, 45(1), 508-518 (2011-10-04)
Heterozygous in frame duplications of the PHOX2B gene, leading to polyalanine (polyAla) expansions ranging from +5 to +13 residues of a 20-alanine stretch, have been identified in the vast majority of patients affected with Congenital Central Hypoventilation Syndrome (CCHS), a
W E Klunk et al.
Life sciences, 63(20), 1807-1814 (1998-11-20)
Increasing evidence suggests that deposition of amyloid-beta (A beta) peptide leads to neurodegeneration in Alzheimer's disease. Congo red, a histologic dye that binds to amyloid has previously been shown to diminish the toxic effects of A beta in cell culture.
W E Klunk et al.
Neurobiology of aging, 15(6), 691-698 (1994-11-01)
This study describes the synthesis and in vitro testing of small molecule probes that may eventually prove useful as markers of amyloid deposition in living patients. The prototype agent, Chrysamine G (CG), is a derivative of Congo red. CG binds
W E Klunk et al.
Neurobiology of aging, 16(4), 541-548 (1995-07-01)
Chrysamine-G (CG) is a carboxylic acid analogue of Congo red, a histologic dye which stains amyloid. CG binds to the beta-amyloid protein of Alzheimer's disease (AD) in vitro and partitions into the brain of normal mice. In this study, we
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