Pharmaceutical Materials

Product Name

Disodium 3.6-dihydroxynaphthalene-2.7-disulphonate

Multiple Names

Disodium 3.6-Dihydroxynaphthalene-2.7-Disulphonate;

Sodium 2.7-Dihydroxyl Naphthalene-3.6-Disulfonate;

7-Naphthalenedisulfonicacid,3.6-Dihydroxy-Disodiumsalt;

3.6-Dihydroxynaphthalene-2.7-Disulfonic Acid Disodium Salt;

2.7-Dihydroxynaphthalene-3.6-Disulfonic Acid Disodium Salt;

Disodium 3.6-Dihydroxynaphthalene-2.7-Disulfonate;

Disodium 3.6-Dihydroxynaphthalene-2.7-Disulphonate;

2.7-Dihydroxy-3.6-Naphthalenedisulfonic Acid Disodium Salt;

3.6-Dihydroxynaphthalene-2.7-Disulfonic Acid, Disodium Salt, Tech., 92+%;

(3.6-Dihydroxy-7-Sodiooxysulfonyl-2-Naphthyl)Sulfonyloxysodium

CAS No. 7153-21-1

EC No. 230-499-2

MF No. C10H6Na2O8S2

MW No. 364.2594

Complex indicator, colorimetric determination of chromium, titanium, mercury and other metal ions. Organic synthesis intermediates.

Advantage of Disodium 3.6-dihydroxynaphthalene-2.7-disulphonate CAS No. 7153-21-1

This product is used to synthesize weak acid dyes and direct dyes

It can also be used as a coupling agent for diazo photosensitive paper to make blueprints

It turns pink when it meets iron, and decomposes into sulfuric acid and salicylic acid at high temperature

 

Aspect	Details
Name	Disodium 3.6-Dihydroxynaphthalene-2.7-Disulphonate
CAS No.	7153-21-1
Synonyms	2.7-Dihydroxynaphthalene-3.6-disulfonic acid disodium salt; Disodium 2.7-dihydroxynaphthalene-3.6-disulfonate
Molecular Formula	C10H6Na2O8S2
Molecular Weight	364.25 g/mol
Physical Properties	Appearance: Grayish-white to beige fine crystalline powder Melting Point: 46-48°C Solubility: Soluble in water, forming a clear solution
Applications	Utilized as a complexometric indicator for the determination of metal ions such as chromium, titanium, and mercury. It also serves as an organic synthesis intermediate, particularly in the production of dyes, pharmaceuticals, and other fine chemicals.
Packaging & Storage	Packaged in moisture-proof containers, stored in cool, dry, and well-ventilated areas, away from incompatible substances and direct sunlight.
Safety Information	Causes skin and eye irritation. Handle with appropriate personal protective equipment, including gloves, goggles, and face masks. In case of contact, wash thoroughly with water and seek medical attention if necessary.
Suppliers	Available from various suppliers, including Hubei Xingyan New Material Technology Co., Ltd., Hubei Hengjingrui Chemical Co., Ltd., and Shanghai Aladdin Biochemical Technology Co., Ltd.

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