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HCID 10752Erstellt: 25. Oktober 2026

2-Oxo-2H-benzopyran-3-carbonsäure

2-OXO-2H-CHROMENE-3-CARBOXYLIC ACID · AURORA 2057 · AKOS BC-1493 · g1(rodenticide) · G I(rodenticide) · 3-Carboxycoumarin · RARECHEM AB KA K006 · OTAVA-BB BB0125160098

https://huagongshe.com/de/chemical/10752

Molekülstruktur von 2-Oxo-2H-benzopyran-3-carbonsäure

Identifikatoren & physikalische Daten

CAS No.531-81-7
SummenformelC10H6O4
Durchschnittliche Molmasse190,15 g/mol
Monoisotopische Masse190,02660867 g/mol
SMILESO=C(O)c1cc2ccccc2oc1=O
InChIKeyACMLKANOGIVEPB-UHFFFAOYSA-N
PubChem CID10752
ChEMBLCHEMBL83294
ChEBICHEBI:192605
EC No.208-518-0
DTXSIDDTXSID70201183
Lokaler Name2-Oxo-2H-benzopyran-3-carbonsäure

Chemische & physikalische Eigenschaften

XLogP2,2
Polarare Oberfläche (TPSA)63,6
H-Brücken-Donoren1
H-Brücken-Akzeptoren4
Frei drehbare Bindungen1
Schwere Atome14
Formalladung0
Komplexität305
Schmelzpunkt189-192 °C (lit.)
Siedepunkt248.82°C (rough estimate)
Dichte1.2599 (rough estimate)
Brechungsindex1.5380 (estimate)
LagerbedingungenSealed in dry,Room Temperature
Löslichkeit13g/l13 g/L (37 ºC)
AggregatzustandCrystalline Powder
pKa (Säurekonstante)1.84±0.20(Predicted)
FarbeLight brown
Merck14,2563
BRN154276
InChI1S/C10H6O4/c11-9(12)7-5-6-3-1-2-4-8(6)14-10(7)13/h1-5H,(H,11,12)
InChIKeyACMLKANOGIVEPB-UHFFFAOYSA-N
SMILESOC(=O)C1=Cc2ccccc2OC1=O
CAS Datenbank531-81-7(CAS DataBase Reference)
NIST chemische InformationenBenzopyran-3-carboxylic acid, 2h-1-, 2-oxo(531-81-7)

Sicherheit & Vorschriften

GHS-EinstufungDangerH301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]P264, P270, P301+P316, P321, P330, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 46 reports by companies from 3 notifications to the ECHA C&L Inventory.Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Regulatorische InformationenCoumarin-3-carboxylic acid: Does not have an individual approval but may be used under an appropriate group standard
Hazard Classes and CategoriesAcute Tox. 3 (100%)
F8
Wassergefährdungsklasse (WGK)3
UN-TransportnummerUN 2811 6.1/PG 3
Zollcode29322090
RTECS-Nr.DJ2490000
R-Sätze (R)25
GefahrensymboleT,Xi
Sicherheitshinweise (S)36/37/39-45-28A
Gefahrenklasse6.1Acute Tox. 3 Oral
VerpackungsgruppeII
Lagerklasse6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects

Anwendungen & Verwendung

Verwenden

Coumarin-3-carboxylic acid is used as pharmaceutical intermediate.