114529

Phenol Red

ACS reagent

• 동의어(들): Phenolsulfonphthalein
• 실험식(Hill 표기법): C₁₉H₁₄O₅S
• CAS Number: 143-74-8
• Molecular Weight: 354.38
• Beilstein: 326470
• EC Number: 205-609-7
• MDL number: MFCD00003552
• UNSPSC 코드: 12171500
• PubChem Substance ID: 24847179
• NACRES: NA.47

속성

• Grade: ACS reagent
• Quality Level: 200
• 양식: powder
• 용액 투명도: passes test
• 기술: titration: suitable
• visual transition interval: 6.8-8.2, yellow to red
• solubility: water: 0.77 g/L at 100 °C
• λmax: 360 nm; 557 nm (2nd)
• ε (흡광계수): ≥10000 at 288-294 nm in H₂O; ≥55000 at 555-561 nm in H₂O; ≥7000 at 357-363 nm in H₂O
• 응용 분야: diagnostic assay manufacturing; hematology; histology
• 저장 온도: room temp
• SMILES string: Oc1ccc(cc1)C2(OS(=O)(=O)c3ccccc23)c4ccc(O)cc4
• InChI: 1S/C19H14O5S/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-1-2-4-18(17)25(22,23)24-19/h1-12,20-21H
• InChI key: BELBBZDIHDAJOR-UHFFFAOYSA-N

설명

일반 설명

Phenol Red is a phenolsulfonphthalein compound. It is present as a sulfonated hydroxyquinone in weakly acidic aqueous solutions. In alkaline solutions, the dye forms a hydrophilic dianion (a small, red anion that has a larger conjugated system than the yellow hydroxyquinone).

애플리케이션

Phenol red is commonly used as a pH indicator in biology and medicine. It is incorporated into microbiological culture media for the identification of Escherichia coli strains. Its clinical diagnostic applications include the investigation of gastric and duodenal ulcers and the assessment of tear function in ophthalmology. Phenol red is also used as a tracer to assess the permeability of the ileal mucosal membrane and to assess bacterial leakage through root-filling materials in dentistry.
Phenol Red has been used for the preparation of phenol red gavage meal for measurement of gastric emptying in rats.[1]

Suitable for use as a pH indicator.

생화학적/생리학적 작용

Phenol Red is a pH indicator which changes color from yellow to red.[2]

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H315,H335
• 예방조치 성명서: P261 - P264 - P271 - P280 - P302 + P352 - P304 + P340 + P312
• Hazard Classifications: Skin Irrit. 2 - STOT SE 3
• 표적 기관: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves