1,5-Naphthalenedisulfonic acid

CAS Number: 81-04-9

Molecular Formula: C10H8O6S2

Purity: 1,5-Naphthalenedisulfonic acid 97% purity

About 1,5-Naphthalenedisulfonic acid

Armstrong's acid (CAS 81-04-9) is an essential naphthalene-based building block in the API intermediates market, primarily utilized for the custom synthesis services of sulfonamide-based antibiotics and as a specialized counterion to improve the solubility and bioavailability of basic drug compounds. Naphthalene-1,5-di...

1,5-Naphthalenedisulfonic acid Specifications

CAS Number

81-04-9

Molecular Formula

C10H8O6S2

Molecular Weight

288.30 g/mol

IUPAC Name

Naphthalene-1,5-disulfonic acid

Canonical SMILES

COS(=O)(=O)C1=CC=CC2=C1C=CC=C2S(=O)(=O)OC

InChI Key

XTEGVFVZDVNBPF-UHFFFAOYSA-N

PubChem CID

6666

EINECS Number

201-317-9

MDL Number

MFCD00003996

HSN No

29041000

CAS Number

81-04-9

Molecular Formula

C10H8O6S2

Molecular Weight

288.30 g/mol

IUPAC Name

Naphthalene-1,5-disulfonic acid

Canonical SMILES

COS(=O)(=O)C1=CC=CC2=C1C=CC=C2S(=O)(=O)OC

InChI Key

XTEGVFVZDVNBPF-UHFFFAOYSA-N

PubChem CID

6666

EINECS Number

201-317-9

MDL Number

MFCD00003996

HSN No

29041000

Molecular Weight

288.30 g/mol

Purity

1,5-Naphthalenedisulfonic acid 97% purity

Physical appearance

White to almost white powder to crystal

Boiling Point

400.53°C (rough estimate)

Freezing point

240-245°C

Flash Point

Density

1.7040

Precautionary Statement Codes

P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P405, and P501

Hazard Classes and Categories

Skin Corr. 1C (100%) Eye Dam. 1 (98.3%)

Dye Intermediate

A foundational organic compound primarily used as a precursor in the synthesis of various azo dyes and colorants for textiles, paper, and plastics

Organic Synthesis Building Block

A versatile starting material employed in the production of chemical intermediates such as 1,5-dihydroxynaphthalene and amino C acid

Pharmaceutical Intermediate

A functionalized naphthalene derivative used as a divalent counterion to form naphthalenedisulfonate salts of basic drug compounds to improve solubility and bioavailability

Analytical Reagent

A strong organic acid utilized in spectrophotometry and chromatography for the detection of metal ions and as an electrolyte or mobile phase component.