Disodium (3E)-3-{2-[4-(Acetylamino)Phenyl]Hydrazinylidene}-4-Oxo-3,4-Dihydronaphthalene-2,7-Disulfonate

Product Name Disodium (3E)-3-{2-[4-(Acetylamino)Phenyl]Hydrazinylidene}-4-Oxo-3,4-Dihydronaphthalene-2,7-Disulfonate
Alias Evans Blue
Einecs 242-872-3
Mininmum Order 1 g
Factory Site West Ujimqin Banner, Xilingol League, Inner Mongolia, China
Price Inquiry sales9@alchemist-chem.com
Manufacturer Ccount Chem
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Specifications

HS Code	909081
Chemical Name	Disodium (3E)-3-{2-[4-(Acetylamino)Phenyl]Hydrazinylidene}-4-Oxo-3,4-Dihydronaphthalene-2,7-Disulfonate
Molecular Formula	C18H14N3Na2O7S2
Molecular Weight	509.43 g/mol
Appearance	Orange to brown powder
Solubility	Soluble in water
Cas Number	1934-21-0
Synonyms	Acid Yellow 36, Metanil Yellow, C.I. 13065
Melting Point	Decomposes before melting
Usage	Dye, pH indicator
Ph Of 1 Solution	6-7
Stability	Stable under normal conditions
Odor	Odorless

As an accredited Disodium (3E)-3-{2-[4-(Acetylamino)Phenyl]Hydrazinylidene}-4-Oxo-3,4-Dihydronaphthalene-2,7-Disulfonate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage

Packing	White, sealed HDPE bottle containing 25 grams, labeled with the chemical name, hazard warnings, batch number, and supplier contact information.
Storage	Store Disodium (3E)-3-{2-[4-(Acetylamino)phenyl]hydrazinylidene}-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate in a tightly sealed container at room temperature, away from light, moisture, and incompatible substances such as strong oxidizers. Ensure the storage area is well-ventilated and clearly labeled. Avoid exposure to heat and store away from food and drink. Use proper personal protective equipment when handling.
Shipping	The chemical Disodium (3E)-3-{2-[4-(Acetylamino)Phenyl]Hydrazinylidene}-4-Oxo-3,4-Dihydronaphthalene-2,7-Disulfonate should be shipped in tightly sealed, chemical-resistant containers. Protect from moisture, extreme temperatures, and direct sunlight. Comply with relevant chemical transport regulations. It may require classification as a hazardous material—consult SDS for correct labeling, packaging, and documentation. Handle with appropriate safety measures.

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