1.03023

Bromophenol red

pH indicator

• 别名: Bromophenol red, 3′,3′′-Dibromophenolsulfonphthalein, BPR
• 经验公式（希尔记法）: C₁₉H₁₂Br₂O₅S
• CAS号: 2800-80-8
• 分子量: 512.17
• 分類程式碼代碼: 12171502
• 酶委員會索引編號: 220-538-1
• NACRES: NA.21

属性

• product name: Bromophenol red, indicator
• 品質等級: 200
• 形狀: solid
• 雜質: ≤5% Water (Karl Fischer)
• visual transition interval: 4.7-6.3, yellow to purple
• mp: 230 °C (decomposition)
• 體積密度: 770 kg/m³
• Amax: 435-440 nm (buffer pH 4.7); 574-577 nm (buffer pH 6.3)
• 儲存溫度: 2-30°C
• InChI: 1S/C19H12Br2O5S/c20-14-9-11(5-7-16(14)22)19(12-6-8-17(23)15(21)10-12)13-3-1-2-4-18(13)27(24,25)26-19/h1-10,22-23H
• InChI 密鑰: OYCLSQDXZMROJK-UHFFFAOYSA-N

说明

分析報告

Identity (UV/VIS-Spectrum): passes test
Transition range: pH 4.7 - pH 6.3 yellow to purple
Absorption maximum λ 1 (buffer pH 4.7): 435 - 440 nm
Absorption maximum λ 2 (buffer pH 6.3): 574 - 577 nm
Spec. Absorptivity A 1%/1cm (λ1_max; 0.01 g/l; buffer pH 4.7; calculated on anhydrous substance): ≥ 380
Spec. Absorptivity A 1%/1cm (λ2_max; 0.01 g/l; Puffer pH 6.3; calculated on anhydrous substance): ≥ 760
Water (according to Karl Fischer): ≤ 5 %

安全信息

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable