BioReagent, certified by the Biological Stain Commission BioReagent for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 714 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Certified for use as a counterstain for alum based hematoxylin and in the Highman or the Churukian modification of Puchtler′s amyloid stain.
Congo red has been used for the staining of β amyloid peptides.
Biochem/physiol Actions：
Congo red is a benzidine-based anionic diazo dye. It is a histological dye which binds to many amyloid proteins and is used for the quantification of amyloid β-peptide aggregation. Congo red also interacts with β-D-glucans, polysaccharides containing continuous β-(1→4)-linked D-glucopyranosyl units and some hemicellulosic galactoglucomannans.
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Benzenoids |
| 분류 | Benzene and substituted derivatives |
| Subclass | Biphenyls and derivatives |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Benzidines |
| Alternative Parents | 1-naphthalene sulfonic acids and derivatives 1-naphthalene sulfonates 1-sulfo,2-unsubstituted aromatic compounds Sulfonyls Organosulfonic acids Azo compounds Propargyl-type 1,3-dipolar organic compounds Primary amines Organopnictogen compounds Organic sodium salts Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homopolycyclic compounds |
| Substituents | Naphthalene sulfonate - 1-naphthalene sulfonic acid or derivatives - Naphthalene sulfonic acid or derivatives - 1-naphthalene sulfonate - Benzidine - Naphthalene - 1-sulfo,2-unsubstituted aromatic compound - Arylsulfonic acid or derivatives - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - Azo compound - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Organic alkali metal salt - Amine - Organic salt - Organic sodium salt - Primary amine - Organosulfur compound - Organonitrogen compound - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Aromatic homopolycyclic compound |
| 설명 | This compound belongs to the class of organic compounds known as benzidines. These are organic compounds containing the benzidine skeleton, made up of a biphenyl ring system substituted at the 4- and 4'-positions with a unsubstituted amine group. |
| External Descriptors | azo compound |
| 용해성 | H 2 O: 10 mg/mL |
|---|---|
| 감도 | Moisture sensitive |
| 녹는점(°C) | >360°C |
| 분자량 | 696.700 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 12 |
| Rotatable Bond Count | 5 |
| Exact Mass | 696.084 Da |
| Monoisotopic Mass | 696.084 Da |
| Topological Polar Surface Area | 233.000 Ų |
| Heavy Atom Count | 48 |
| Formal Charge | 0 |
| Complexity | 1180.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 3 |
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F2625144