291099

α-Naphtholbenzein

indicator grade

• 동의어(들): 4,4′-(α-Hydroxybenzylidene)di-1-naphthol, p-naphtholbenzein
• 실험식(Hill 표기법): C₂₇H₁₈O₂
• CAS Number: 145-50-6
• Molecular Weight: 374.43
• Beilstein: 2628063
• EC Number: 205-656-3
• UNSPSC 코드: 12171500
• PubChem Substance ID: 24857510
• NACRES: NA.47

속성

• Grade: indicator grade
• Quality Level: 100
• 양식: powder
• 기술: titration: suitable
• 색상: faintly Faint Brown to Very Dark Brown to Very Dark Red and Black
• pH: 0.0, green; 0.8, yellow; 10.0, blue-green; 8.2, yellow
• mp: 230-235 °C (lit.)
• ε (흡광계수): ≥50000 at 207-213 nm in methanol at 0.01 g/L
• 응용 분야: diagnostic assay manufacturing; hematology; histology
• 저장 온도: room temp
• SMILES string: Oc1ccc(\C(c2ccccc2)=C3\C=CC(=O)c4ccccc34)c5ccccc15
• InChI: 1S/C27H18O2/c28-25-16-14-23(19-10-4-6-12-21(19)25)27(18-8-2-1-3-9-18)24-15-17-26(29)22-13-7-5-11-20(22)24/h1-17,28H/b27-24-
• InChI key: VDDWRTZCUJCDJM-PNHLSOANSA-N

설명

일반 설명

α-Naphtholbenzein is a dye belonging to the Benzein family insoluble in water and soluble in alcohol. α-Naphtholbenzein is primarily used as an indicator for pH range 8.2-10.0 (mostly in acid-base titrations), causing a color change for the neutral solutions turning alkaline. Its applications include detection of bacterial growth in packed food, viable cells, enzymes, ammonia odors in patients with bacterial infection, and many more.

애플리케이션

α-Naphtholbenzein has been used as an indicator during sequential injection analysis technique done for acid-base titrations.

안전성 정보

• 유해 및 위험 성명서: H413
• 예방조치 성명서: P273 - P501
• Hazard Classifications: Aquatic Chronic 4
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves