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Catalog Number:
00589
CAS Number:
4197-07-3
Chromotrope 2R
Purity:
≥ 77% (Dye content: Spectrophotometry)
Synonym(s):
Acid red 29, 2-(Phenylazo)chromotropic acid disodium salt, CI 16570
Documents
$29.34 /25G
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Product Information

Chromotrope 2R is a vibrant synthetic dye known for its exceptional coloring properties and versatility in various applications. This compound, also recognized as disodium 4,5-dihydroxy-3-phenyldiazenylnaphthalene-2,7-disulfonate, is primarily utilized in the textile industry for dyeing and printing fabrics, providing brilliant hues that are both lightfast and washfast. Its unique structure allows for strong binding to fibers, making it an ideal choice for producing vivid colors in cotton, silk, and synthetic materials.

In addition to textiles, Chromotrope 2R finds significant use in biological staining, particularly in microscopy, where it serves as a reliable stain for highlighting cellular structures. Its ability to produce clear and distinct contrasts enhances the visibility of specimens, making it invaluable in research and diagnostic applications. With its excellent solubility and stability, Chromotrope 2R stands out among similar compounds, offering researchers and industry professionals a dependable option for both industrial and scientific purposes.

Synonyms
Acid red 29, 2-(Phenylazo)chromotropic acid disodium salt, CI 16570
CAS Number
4197-07-3
Purity
≥ 77% (Dye content: Spectrophotometry)
Molecular Formula
C16H10N2Na2O8S2
Molecular Weight
468.37
MDL Number
MFCD00003955
PubChem ID
20172
Appearance
Brownish-red powder
Conditions
Store at RT
General Information
Synonyms
Acid red 29, 2-(Phenylazo)chromotropic acid disodium salt, CI 16570
CAS Number
4197-07-3
Purity
≥ 77% (Dye content: Spectrophotometry)
Molecular Formula
C16H10N2Na2O8S2
Molecular Weight
468.37
MDL Number
MFCD00003955
PubChem ID
20172
Appearance
Brownish-red powder
Conditions
Store at RT
Properties
Additional property information coming soon!
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Safety and Regulations
Hazmat
No
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Chromotrope 2R is widely utilized in research focused on:

  • Histology and Cytology: This compound is commonly used as a staining agent in microscopy, allowing researchers to visualize cellular structures and tissues effectively. Its vibrant color enhances contrast, making it easier to identify specific cell types.
  • Food Industry: Chromotrope 2R serves as a food colorant, providing a bright red hue to various products. Its application in food not only enhances visual appeal but also meets regulatory standards for safety.
  • Textile Industry: In textiles, it acts as a dye, offering excellent color fastness and stability. This makes it a preferred choice for manufacturers looking to produce vibrant and long-lasting colored fabrics.
  • Biochemical Research: The compound is utilized in biochemical assays and experiments, particularly in the detection of proteins and nucleic acids. Its ability to bind selectively to certain biomolecules aids in various analytical techniques.
  • Environmental Monitoring: Chromotrope 2R is also applied in environmental studies to detect and quantify pollutants in water samples. Its sensitivity allows for accurate assessments of water quality, benefiting researchers and regulatory bodies alike.

Citations