1,5-Naphthalenedisulfonic acid CAS 81-04-9

CAS: 81-04-9

Molecular Formula: C10H8O6S2

Molecular Weight: 288.3

EINECS: 201-317-9

Synonyms: Naphthalin-1,5-disulfonsure; 1,5-phthalenedisulfonic acid; NAPHTHALENE-1,5-DISULFONIC ACID DISODIUM SALT; naphthalene-1,5-disulphonic acid; SODIUM 1,5-NAPHTHALENEDISULFONATE DIBASIC; 1,5-Naphthalenedisulphonicacid; 1,5-naphthylenedisulfonicacid; 2-Naphthylaminedisulfonicacid; 1,5-NAPHTHALINEDISULFONIC ACID; 1,5-NAPHTHALENEDISULFONIC ACID; 1,5-NAPHTHALENEDISULFONIC ; ACID DISODIUM SALT HYDRATE; 1,5-NAPHTHALENE DISULPHONATE

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

1,5-Naphthalenedionic acid white plate-like crystals (with four molecules of crystal water). Melting point 240-245 ℃ (anhydrous). Soluble in water and ethanol, insoluble in ether. 1,5-Naphthalenedionic acid is used as an intermediate for dyes. Used for the production of intermediates such as 1,5-dihydroxynaphthalene and amino acids.

Specification

Item	Specification
Boiling point	400.53°C (rough estimate)
Density	1.7040
Melting point	242.5°C (rough estimate)
pKa	-0.60±0.40(Predicted)
resistivity	1.5630 (estimate)
Storage conditions	Store below +30°C.

Application

1,5-Naphthalenedionic acid is used as an organic synthesis raw material and dye intermediate, 1,5-Naphthalenedionic acid is used for dye synthesis, and Naphthalenedionic acid is used as an intermediate for dyes. Used for the production of intermediates such as 1,5-dihydroxynaphthalene and amino acids.