Sodium 6,7-dihydroxy-2-naphthalenesulfonate

Basic Information

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CAS Number

135-53-5

Molecular Formula

C10H7NaO5S

Molecular Weight

262.22 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Boiling Point

°Cat760mmHg

Density

1.677

Water Solubility

almost transparency

SMILES

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C1=CC(=CC2=CC(=C(C=C21)O)O)S(=O)(=O)[O-].[Na+]

InChI

InChI=1S/C10H8O5S.Na/c11-9-4-6-1-2-8(16(13,14)15)3-7(6)5-10(9)12;/h1-5,11-12H,(H,13,14,15);/q;+1/p-1

InChIKey

JFXDYPLHFRYDJD-UHFFFAOYSA-M

LogP

2.23590

Complexity

352

Safety Information

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Hazard Statement

H316 Causes mild skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

Synonyms & References

English

Sodium2,3-dihydroxynaphthalene-6-sulfonate
AC7805
Monosodium 6,7-Dihydroxynaphthalene-2-sulfonate
AC-24473
2,3-Dihydroxynaphthalene-6-sulfonic acid, sodium salt
EINECS 205-198-4
MFCD00004074
C10H7NaO5S
DS Acid Monosodium Salt
A806948
2,3-Dihydroxynaphthalene-6-sulfonic Acid Monosodium Salt
NS00079113
2-Naphthalenesulfonic acid, 6,7-dihydroxy-, sodium salt (1:1)
2-Naphthalenesulfonic acid, 6,7-dihydroxy-, monosodium salt
AS-65730
Sodium 2,3-dihydroxynaphthalene-6-sulfonate
SY038101
Sodium 2,3-dioxynaphthalene-6-sulfonate
FT-0609671
SCHEMBL209712
AKOS015897559
Natrium-2,3-dihydroxy-naphthalin-6-sulfonat
Sodium 6,7-dihydroxynaphthalene-2-sulphonate
DTXSID6059651
W-108267
AI3-23557
6,7-Dihydroxy-2-naphthalenesulfonicacidsodiumsalt
D0597
2,3-Dihydroxynaphthalene-6-sodium sulfonate
135-53-5
Sodium 2,3-dihydroxyll naphthalene-6-sulfonate

MDL Number

MFCD00004074

Customs Code

2908999090

FAQ

What are the physical and chemical properties of Sodium 6,7-dihydroxy-2-naphthalenesulfonate (CAS: 135-53-5)?

Sodium 6,7-dihydroxy-2-naphthalenesulfonate is a crystalline compound with a molecular weight of approximately 281.21 g/mol. It has a low solubility in water (0.005 g/100 mL at 20°C) and is moderately soluble in ethanol and methanol. This compound is less reactive but can undergo acidic or basic hydrolysis. It is a colorless to white crystalline powder with a slight sulfuric odor.

How is Sodium 6,7-dihydroxy-2-naphthalenesulfonate (CAS: 135-53-5) typically synthesized?

Sodium 6,7-dihydroxy-2-naphthalenesulfonate is commonly synthesized by the sulfonation of 6,7-dihydroxy-2-naphthalenol using sulfur trioxide in the presence of an appropriate catalyst, such as sulfuric acid. The reaction typically involves the addition of sulfur trioxide to a solution of the alcohol, followed by neutralization with sodium hydroxide to form the sodium salt. The yield is usually around 80-90%. This process is selective and efficient.

What industries use Sodium 6,7-dihydroxy-2-naphthalenesulfonate (CAS: 135-53-5)?

Sodium 6,7-dihydroxy-2-naphthalenesulfonate finds application in the pharmaceutical industry as a precursor for the synthesis of other compounds. It is also used in the polymer industry for the production of naphthols, which are used in the synthesis of dyes and pigments. Additionally, this compound is used in the development of sensors and as a reagent in analytical chemistry.

What precautions should be taken when handling Sodium 6,7-dihydroxy-2-naphthalenesulfonate (CAS: 135-53-5)?

When handling Sodium 6,7-dihydroxy-2-naphthalenesulfonate, it is essential to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. The compound should be handled in a well-ventilated area or a fume hood to minimize exposure. Spills should be carefully cleaned up using appropriate absorbent materials. Emergency eye wash stations and safety showers should be readily available. For further information, refer to the Safety Data Sheet (SDS) for detailed handling and storage instructions.