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HCID 7091Erstellt: 26. Oktober 2026

Naphthalin-2,3-diol

Naphthalene-2,3-diol · 2,3-Dihydroxy · 2,3-NAPHTHALENEDIOL · 2,3-DIHYDROXYNAPHTHALENE, SUBL. · Naphthalin-2,3-diol · Dihydroxynaphthalene · Naphthalenediol-(2,3) · 3-Dihydroxynaphthalene

https://huagongshe.com/de/chemical/7091

Molekülstruktur von Naphthalin-2,3-diol

Identifikatoren & physikalische Daten

CAS No.92-44-4
SummenformelC10H8O2
Durchschnittliche Molmasse160,17 g/mol
Monoisotopische Masse160,0524295 g/mol
SMILESOc1cc2ccccc2cc1O
InChIKeyJRNGUTKWMSBIBF-UHFFFAOYSA-N
PubChem CID7091
ChEMBLCHEMBL205007
ChEBICHEBI:38135
EC No.202-156-7
DTXSIDDTXSID2043903
Lokaler NameNaphthalin-2,3-diol

Chemische & physikalische Eigenschaften

XLogP2,5
Polarare Oberfläche (TPSA)40,5
H-Brücken-Donoren2
H-Brücken-Akzeptoren2
Frei drehbare Bindungen0
Schwere Atome12
Formalladung0
Komplexität140
StoffklassenOther Classes -> Naphthols
KosmetikaCosmetic ingredients (2,3-Naphthalenediol) -> CIR (Cosmetic Ingredient Review)Hair dyeing
SpringerMaterials Properties13C nuclear magnetic resonance spectrum
LogP (Verteilungskoeffizient)2.24
Dampfdruck0.00000715 [mmHg]0.8 hPa (149 °C)
Physical DescriptionWhite powder[Alfa Aesar MSDS]
Collision Cross Section132.44 Ų [M-H]- [CCS Type: DTMethod: stepped-field]131.3 Ų [M-H]-
Schmelzpunkt161-165 °C (lit.) 162-164 °C
Siedepunkt246.06°C (rough estimate)
Dichte1.0924 (rough estimate)
Brechungsindex1.5178 (estimate)
Flammpunkt175 °C
LagerbedingungenStore below +30°C.
Löslichkeit4g/lslightly soluble
AggregatzustandPowder
pKa (Säurekonstante)9.10±0.40(Predicted)
FarbeWhite to pinkish to beige-grayish
pH6 (1g/l, H2O, 20℃)
BRN742375
Henry-Konstante2.0×105 mol/(m3Pa) at 25℃, Ebert et al. (2023)
Kosmetik-Inhaltsstoffe FunktionenHAIR DYEING
InChI1S/C10H8O2/c11-9-5-7-3-1-2-4-8(7)6-10(9)12/h1-6,11-12H
InChIKeyJRNGUTKWMSBIBF-UHFFFAOYSA-N
SMILESOc1cc2ccccc2cc1O
CAS Datenbank92-44-4(CAS DataBase Reference)
NIST chemische Informationen2,3-Naphthalenediol(92-44-4)
EPA chemische Informationen2,3-Naphthalenediol (92-44-4)

Sicherheit & Vorschriften

GHS-EinstufungDangerH302 (16%): Harmful if swallowed [Warning Acute toxicity, oral]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 50 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: 2,3-Naphthalenediol2,3-Naphthalenediol: Does not have an individual approval but may be used under an appropriate group standard
Weitere SicherheitsinformationenIMAP assessments - Chemicals with limited data availability that may be used in hair dyes overseas: Human health tier II assessment
GefahrenübersichtIntravenous LD50 (mouse) = 56 mg/kg[RTECS] An irritant that may cause serious eye injuryHarmful by ingestion[Alfa Aesar MSDS] See 1-Napththol and 2-Naphthol. See 2,7-Naphthalenediol.
Hazard Classes and CategoriesAcute Tox. 4 (16%)
ToxizitätsübersichtThe CIR Expert Panel concludes that the available data are insufficient to support the safety of 2,3-Naphthalenediol as used in cosmetics.Ingredients for which the data are insufficient and their use in cosmetics is not supported
F10-23
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
Zollcode29072900
RTECS-Nr.QJ4750000
R-Sätze (R)36/37/38
ToxizitätLD50 orally in Rabbit: 970 mg/kg
GefahrensymboleXi
Sicherheitshinweise (S)26-37/39
Lagerklasse11 - Combustible Solids
GefahrenklasseAcute Tox. 4 OralEye Dam. 1
Selbstentzündungstemperatur>330 °C

Anwendungen & Verwendung

Verwenden

2,3-Dihydroxynaphthalene is used in making dyes, pigments, fluorescent whiteners, tanning agents, antioxidants, and antiseptics.