1,5-Naphthalenedisulfonic acid

Basic Information

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CAS Number

81-04-9

Molecular Formula

C10H8O6S2

Molecular Weight

288.3 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

242.5°C (rough estimate)

Boiling Point

400.53°C (rough estimate)

Density

1.7040

Refractive Index

1.5630 (estimate)

SMILES

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C1=CC2=C(C=CC=C2S(=O)(=O)O)C(=C1)S(=O)(=O)O

InChI

InChI=1S/C10H8O6S2/c11-17(12,13)9-5-1-3-7-8(9)4-2-6-10(7)18(14,15)16/h1-6H,(H,11,12,13)(H,14,15,16)

InChIKey

XTEGVFVZDVNBPF-UHFFFAOYSA-N

LogP

1.3332

Topological Polar Surface Area

108.74 Å²

Hydrogen Bond Donor/Acceptor

2 / 6

Complexity

450

Safety Information

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GHS Hazard Pictograms

H314

Hazard Statement

H314 Causes severe skin burns and eye damage
Skin corrosion/irritation

Hazard Class

Class 8 Class 8

Synonyms & References

English

DTXSID5046982
NSC 9588
E8FPK78470
4-11-00-00561 (Beilstein Handbook Reference)
1,5-NaphthalenedisulfonicAcid
LS-94620
STK016233
1,5-Naphthalenedisulfonic acid; Armstrong's acid; NSC 9588; Napadisylic acid; Naphthalene-1,5-disulfonic acid
naphthalene 1,5-disulfonic acid
29-68-5
NSC9588
HEXETIDINE IMPURITY D [ EP IMPURITUY]
1,5-NAPHTHALENEDISULFONIC ACID
1,5-napthalene disulfonic acid
1,5 naphthalenedisulfonic acid
UNII-E8FPK78470
21D
AT25161
MFCD00003996
1,5-Naphthalene Disulfonic Acid
ARMSTRONG'S ACID [MI]
N0763
A840027
FT-0622474
CBDivE_012757
Naphthalene-1,5-disulphonic acid
Armstrong's S acid
EINECS 201-317-9
1,5-naphthalene disulphonic acid
1,5-Naphthylene disulfonic acid
1,5-naphthalenedisulphonic acid

MDL Number

MFCD00003996

Customs Code

2904100000

FAQ

What is 1,5-Naphthalenedisulfonic acid (CAS: 81-04-9)?

1,5-Naphthalenedisulfonic acid (CAS: 81-04-9) is an organic compound with the chemical formula C10H8S2O4. It is a disulfonic acid derivative of naphthalene, known for its strong acidic properties and ability to form salts. This compound is commonly used as a precursor in the synthesis of various dyes, pharmaceuticals, and other industrial chemicals.

What are the main uses of 1,5-Naphthalenedisulfonic acid (CAS: 81-04-9)?

1,5-Naphthalenedisulfonic acid (CAS: 81-04-9) is primarily used in the production of azo dyes and pigments. It also finds applications in pharmaceuticals for drug development, in industrial manufacturing as a building block for more complex molecules, and in research for chemical synthesis and material science studies.

Is 1,5-Naphthalenedisulfonic acid (CAS: 81-04-9) safe?

1,5-Naphthalenedisulfonic acid (CAS: 81-04-9) is generally considered safe when handled properly. However, it may cause irritation to the skin, eyes, and respiratory system. Safety data sheets recommend using appropriate personal protective equipment (PPE) and ensuring good ventilation. It is classified as a substance with potential health risks, so adherence to safety standards is crucial during handling.

How should 1,5-Naphthalenedisulfonic acid (CAS: 81-04-9) be stored?

1,5-Naphthalenedisulfonic acid (CAS: 81-04-9) should be stored in a cool, dry, and well-ventilated area, away from light. It is best kept in a sealed container made of material resistant to chemical reactions, such as glass or polyethylene. Avoid exposure to moisture and ensure storage conditions maintain its stability and prevent degradation.