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HCID 69475Erstellt: 26. Oktober 2026

Phenylpropiolsure

3-Phenylpropiolic acid · PHENYLPROPYNOIC ACID · Benzenepropiolic acid · 3-PHENYLPROPYNOIC ACID · Phenylpropiolic acid,97% · RARECHEM AL BE 0668 · phenylpropanic acid · PHENYLPROPIOLIC ACID

https://huagongshe.com/de/chemical/69475

Molekülstruktur von Phenylpropiolsure

Identifikatoren & physikalische Daten

CAS No.637-44-5
SummenformelC9H6O2
Durchschnittliche Molmasse146,14 g/mol
Monoisotopische Masse146,03677943 g/mol
SMILESO=C(O)C#Cc1ccccc1
InChIKeyXNERWVPQCYSMLC-UHFFFAOYSA-N
PubChem CID69475
ChEMBLCHEMBL4059878
ChEBICHEBI:90355
EC No.211-285-8
DTXSIDDTXSID7060918
Lokaler NamePhenylpropiolsure

Chemische & physikalische Eigenschaften

XLogP2
Polarare Oberfläche (TPSA)37,3
H-Brücken-Donoren1
H-Brücken-Akzeptoren2
Frei drehbare Bindungen1
Schwere Atome11
Formalladung0
Komplexität200
SpringerMaterials PropertiesCrystal structure
Schmelzpunkt136 - 139 °C135-137 °C (lit.)
Physical DescriptionSolid
Collision Cross Section121.2 Ų [M+H-H2O]+ [CCS Type: DTMethod: single field calibrated with Agilent tune mix (Agilent)]
Siedepunkt225.74°C (rough estimate)
Dichte1.1674 (rough estimate)
Brechungsindex1.5550 (estimate)
Lagerbedingungen2-8°C
AggregatzustandFine Crystalline Powder
pKa (Säurekonstante)pK1:2.269 (35°C)
FarbeWhite to slightly beige
Löslichkeitfreely soluble
BRN742587
InChIInChI=1S/C9H6O2/c10-9(11)7-6-8-4-2-1-3-5-8/h1-5H,(H,10,11)
InChIKeyXNERWVPQCYSMLC-UHFFFAOYSA-N
SMILESC(O)(=O)C#CC1=CC=CC=C1
CAS Datenbank637-44-5(CAS DataBase Reference)
NIST chemische InformationenPhenylpropiolic acid(637-44-5)
EPA chemische Informationen2-Propynoic acid, 3-phenyl- (637-44-5)

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 50 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: 2-Propynoic acid, 3-phenyl-Phenylacetylenecarboxylic acid: Does not have an individual approval but may be used under an appropriate group standard
Weitere SicherheitsinformationenEvaluation - Chemicals not considered for in depth evaluation - Not commercially active in Australia
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
Zollcode29163900
R-Sätze (R)36/37/38
GefahrensymboleXi
Sicherheitshinweise (S)26-36-24/25
GefahrenklasseIRRITANTEye Irrit. 2Skin Irrit. 2STOT SE 3
Lagerklasse11 - Combustible Solids

Anwendungen & Verwendung

Verwenden

Phenylpropiolic Acid is used as a reagent in the high yield synthesis of 3,3-diphenylpropanoic acid derivatives via hydrophenylation and ionic hydrogenation with strong Lewis acids. It is also used in the synthesis of highly substituted aromatic rings via the alkyne-mediated approach which serve as templates for drug design.

Phenylpropiolic Acid|Huagongshe