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HCID 68993Erstellt: 3. November 2026

3,3-Bis(4-hydroxy-1-naphthyl)phthalid

NAPHTHOLPHTHALEIN · 1-NAPHTHOLPHTHALEIN · 1-naphthol quinone · ɑ-Naphtholphthalein · l-naphtholphthalein · à-naphtholphthalein · α-Naphtholphthalein · p-α-Naphtholphthalein

https://huagongshe.com/de/chemical/68993

Molekülstruktur von 3,3-Bis(4-hydroxy-1-naphthyl)phthalid

Identifikatoren & physikalische Daten

CAS No.596-01-0
SummenformelC28H18O4
Durchschnittliche Molmasse418,4 g/mol
Monoisotopische Masse418,12050905 g/mol
SMILESO=C1OC(c2ccc(O)c3ccccc23)(c2ccc(O)c3ccccc23)c2ccccc21
InChIKeyHQHBAGKIEAOSNM-UHFFFAOYSA-N
PubChem CID68993
EC No.209-875-5
DTXSIDDTXSID70208273
Lokaler Name3,3-Bis(4-hydroxy-1-naphthyl)phthalid

Chemische & physikalische Eigenschaften

XLogP6,3
Polarare Oberfläche (TPSA)66,8
H-Brücken-Donoren2
H-Brücken-Akzeptoren4
Frei drehbare Bindungen2
Schwere Atome32
Formalladung0
Komplexität668
StoffklassenDyes -> Indicator Dyes
Endocrine DisruptorsPotential endocrine disrupting compound
Physical DescriptionColorless solid when pureUsually greyish-red[Merck Index] Grey to brown solid[Acros Organics MSDS]
Schmelzpunkt238-240 °C(lit.)
Siedepunkt496.21°C (rough estimate)
Dichte1.1532 (rough estimate)
Dampfdichte14.44 (vs air)
Brechungsindex1.6400 (estimate)
LagerbedingungenStore below +30°C.
LöslichkeitSolubility Practically insoluble in watersoluble in ethanolSoluble in ethanol. Insoluble in water.
AggregatzustandPowder
pKa (Säurekonstante)8.0, 8.2, 8.5(at 25℃)
FarbePink to beige or brown
GeruchCharacteristic odour
pHpH : 7.1~8.7
Merck14,6389
BRN97816
InChI1S/C28H18O4/c29-25-15-13-23(17-7-1-3-9-19(17)25)28(22-12-6-5-11-21(22)27(31)32-28)24-14-16-26(30)20-10-4-2-8-18(20)24/h1-16,29-30H
InChIKeyHQHBAGKIEAOSNM-UHFFFAOYSA-N
SMILESO1C(c6c(cccc6)C1=O)(c4c5c(c(cc4)O)cccc5)c2c3c(c(cc2)O)cccc3
CAS Datenbank596-01-0(CAS DataBase Reference)

Sicherheit & Vorschriften

GHS-EinstufungWarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 38 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-1-naphthalenyl)-1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-1-naphthalenyl)-: Does not have an individual approval but may be used under an appropriate group standard
GefahrenübersichtMay cause irritation[Acros Organics MSDS]
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
Wassergefährdungsklasse (WGK)3
Zollcode32041900
R-Sätze (R)36/37/38
GefahrensymboleXi
Sicherheitshinweise (S)26-36
Lagerklasse11 - Combustible Solids

Anwendungen & Verwendung

Verwenden

alpha-Naphtholphthalein is used in preparation of epoxy resin compound, preparing, laminated board, printed circuit board, and cured product with high heat resistance and flame retardancy.