Skip to Content
Merck
CN

C1115

Sigma-Aldrich

Chrysamine G

≥95% (HPLC), ß-amyloid aggregates probe, solid

Synonym(s):

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

Sign Into View Organizational & Contract Pricing

Select a Size

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

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Chrysamine G, ≥95% (HPLC), solid

Assay

≥95% (HPLC)

form

solid

color

, orange to red to very dark brown

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

Related Categories

General description

Chrysamine G is a carboxylic acid derivative of Congo red.

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.
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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000427530
0000427530
0000247047
0000247047
0000187029

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

N A Dezutter et al.
European journal of nuclear medicine, 26(11), 1392-1399 (1999-11-07)
Chrysamine G (CG), an analogue of Congo red, is known to bind in vitro to the beta-amyloid protein (Abeta 10-43) and to homogenates of several regions of the brain of Alzheimer's disease (AD) patients. We synthesised a conjugate of 2-(acetamido)-CG
Fusheng Yang et al.
The Journal of biological chemistry, 280(7), 5892-5901 (2004-12-14)
Alzheimer's disease (AD) involves amyloid beta (Abeta) accumulation, oxidative damage, and inflammation, and risk is reduced with increased antioxidant and anti-inflammatory consumption. The phenolic yellow curry pigment curcumin has potent anti-inflammatory and antioxidant activities and can suppress oxidative damage, inflammation
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
D L Smith et al.
Neurobiology of disease, 8(6), 1017-1026 (2001-12-14)
Huntington's disease (HD) is a late onset neurodegenerative disorder caused by a CAG/polyglutamine (polyQ) repeat expansion. PolyQ aggregates can be detected in the nuclei and processes of neurons in HD patients and mouse models prior to the onset of symptoms.
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
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service