N8257

α-Naphtholphthalein

>80% purity NaOH basis (titration), practical grade, powder

• Synonym(e): 1-Naphtholphthalein; 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one
• Empirische Formel (Hill-System): C₂₈H₁₈O₄
• CAS-Nummer: 596-01-0
• Molekulargewicht: 418.44
• NACRES: NA.47
• PubChem Substance ID: 24897859
• UNSPSC Code: 12171500
• EC Number: 209-875-5
• MDL number: MFCD00036202
• Beilstein/REAXYS Number: 97816

Eigenschaften

• Produktname: α-Naphtholphthalein, practical grade
• grade: practical grade
• Quality Segment: 200
• assay: >80% NaOH basis (titration)
• form: powder
• technique(s): titration: suitable
• pH: 7.3-8.7, colorless to blue-green
• mp: 238-240 °C (lit.)
• solubility: ethanol: 50 mg/mL, clear, red-orange
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: Oc1ccc(c2ccccc12)C3(OC(=O)c4ccccc34)c5ccc(O)c6ccccc56
• InChI: 1S/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
• InChI key: HQHBAGKIEAOSNM-UHFFFAOYSA-N

Beschreibung

General description

α-Naphtholphthalein, a phthalein dye is a pH indicator between 7.3 (colorless) and 8.7 (greenish-blue). Applications include inks, markers, detecting viable cells, food storage, and many more.

Sicherheitshinweise

• Lagerklasse: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves