117-62-4Nc1ccc2c(S(=O)(=O)O)cccc2c1S(=O)(=O)OYAIKCRUPEVOINQ-UHFFFAOYSA-N117-62-4DTXSID0045040CHEMBL1731910Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
This chemical does not meet GHS hazard criteria for 6.8% (4 of 59) of reports.
Danger
H318 (15.3%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
P264+P265, P280, P305+P351+P338, P305+P354+P338, P317, and P337+P317 (click each P-code to see the statement)
Aggregated GHS information provided per 59 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
REACH registered substance: 2-aminonaphthalene-1,5-disulphonic acid (EC: 204-201-6)
1,5-Naphthalenedisulfonic acid, 2-amino-: Does not have an individual approval but may be used under an appropriate group standard
Beschreibung2-Aminonaphthalene-1,5-disulfonic acid [117-62-4]. 5-sulfo-Tobias acid, C10H9NO6S2, Mr 303.32, is purified by crystallization of the dipotassium salt from water. Alkali fusion results in formation of 2-amino-5-hydroxynaphthalene-1-sulfonic acid. Sulfonation (40 % oleum, 100℃) gives 2-aminonaphthalene-1,5,7-trisulfonic acid. Heating with aqueous sulfuric acid produces 2-aminonaphthalene-5- sulfonic acid. The diazo compound is converted to 2-diazo-1-hydroxynaphthalene-5-sulfonic acid on treatment with alkaline hypochlorite.
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