Acid Orange 7 TCI G0158

Chemical Identity

Other names: Gold Orange · p-(2-Hydroxy-1-naphthylazo)benzenesulfonic Acid Sodium Salt · Orange II · Tropaeolin OOO-2
CAS No.: 633-96-5
PubChem: CID 135442941·SID 87570353
Formula: C16H11N2NaO4S
Molecular weight: 350.32 g/mol
Purity: >97.0%(HPLC)
Reference databases: ChemSpider·ECHA·Wikipedia

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: sodium 4-[(2-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate
SMILES: C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC=C(C=C3)S(=O)(=O)[O-])O.[Na+]
InChIKey: CQPFMGBJSMSXLP-UHFFFAOYSA-M
MDL: MDL00011657

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Acid Orange 7 is a synthetic pigment widely used in laboratory settings, particularly in chemistry and biology. It serves as a staining agent that helps visualize and analyze various biological samples, such as proteins, lipids, and other structural components. This dye is commonly employed in experimental research to enhance the contrast of microscopic specimens, making it easier for scientists to observe and study cellular structures and biochemical processes. Its versatility makes it an essential tool in both academic and industrial research environments.

One of the key reasons Acid Orange 7 is preferred is its solubility in water and its distinct red coloration. These properties ensure that it remains stable and effective under standard laboratory conditions, providing consistent results across multiple experiments. Additionally, its chemical stability means it does not easily degrade, maintaining its performance over time. This reliability is crucial for researchers who require accurate and repeatable outcomes in their experiments.

In Indonesian laboratories, Acid Orange 7 is frequently used in chemical and biological research, especially in higher education institutions and research centers. Its availability and effectiveness make it a popular choice for staining applications. The dye is particularly useful in protein staining and microscopic analysis, supporting a wide range of scientific investigations. Its consistent performance and ease of use contribute to its widespread adoption in the local scientific community.

Related TCI products

Protein staining in biological research to enhance visibility under a microscope for detailed analysis.
Structural analysis of cellular components to distinguish between different types of biomolecules.
Microscopic observation of lipid structures to study their distribution and behavior in various environments.
Support for biochemical experiments requiring clear and stable coloration for accurate results.
Educational use in teaching laboratories to demonstrate staining techniques and biological visualization methods.

Brand	TCI
CAS number	633-96-5
Molecular formula	—
Purity	—
Category	Chemistry > Stains and Dyes (for Research and Experimental Use) > Acid Dyes (for Research and Experimental Use)
Pack sizes	Available in standard laboratory quantities as per supplier specifications
Physical form	Powder or liquid, depending on the formulation
Storage	Store in a cool, dry place away from direct sunlight

Acid Orange 7 should be stored in a cool, dry place, away from direct sunlight and sources of heat. It is recommended to use airtight containers to prevent moisture absorption and maintain its chemical integrity. When handling, it is important to follow standard laboratory safety protocols, including the use of protective gloves and goggles to avoid skin or eye contact. Due to its water solubility, it is advisable to store it in a sealed container to prevent contamination or evaporation. Proper storage ensures the dye remains effective and safe for use in research applications.

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