推荐：Bromophenol red@2024已更新

别名:Bromophenol red, 3′,3′′-Dibromophenolsulfonphthalein, BPR

Empirical Formula (Hill Notation):C19H12Br2O5S

CAS号:2800-80-8

分子量:512.17

EC索引号:220-538-1

属性
质量水平
200

形式
solid

杂质
≤5% Water (Karl Fischer)

visual transition interval
4.7-6.3, yellow to purple

mp
230 °C (decomposition)

堆积密度
770 kg/m3

Amax
435-440 nm (buffer pH 4.7)
574-577 nm (buffer pH 6.3)

储存温度
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 key
OYCLSQDXZMROJK-UHFFFAOYSA-N

说明
分析说明
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 (λ1max; 0.01?g/l; buffer pH?4.7; calculated on anhydrous substance): ≥ 380
Spec. Absorptivity A 1%/1cm (λ2max; 0.01?g/l; Puffer pH?6.3; calculated on anhydrous substance): ≥ 760
Water (according to Karl Fischer): ≤ 5 %