24-2109

3-Methyl-1-phenyl-2-pyrazoline-5-one

• Synonym(s): 5-Methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
• Empirical Formula (Hill Notation): C₁₀H₁₀N₂O
• CAS Number: 89-25-8
• Molecular Weight: 174.20
• Beilstein/REAXYS Number: 609575
• EC Number: 201-891-0
• MDL number: MFCD00003138
• UNSPSC Code: 12352005
• PubChem Substance ID: 329752598
• application(s): peptide synthesis
• bp: 287 °C/265 mmHg (lit.)

Properties

• form: solid
• availability: available only in Japan
• dilution: (for analytical testing)
• bp: 287 °C/265 mmHg (lit.)
• mp: 126-128 °C (lit.)
• application(s): peptide synthesis
• SMILES string: CC1=NN(C(=O)C1)c2ccccc2
• InChI: 1S/C10H10N2O/c1-8-7-10(13)12(11-8)9-5-3-2-4-6-9/h2-6H,7H2,1H3
• InChI key: QELUYTUMUWHWMC-UHFFFAOYSA-N

Description

Suitability

environmental analysis

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302,H319
• pcodes: P264 - P280 - P301 + P312 - P305 + P351 + P338 - P337 + P313 - P501
• Hazard Classifications: Acute Tox. 4 Oral - Eye Irrit. 2
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• ppe: dust mask type N95 (US), Eyeshields, Gloves