Merck
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1.08122

Supelco

Bromophenol blue

indicator ACS,Reag. Ph Eur

Synonym(s):
Bromophenol blue, 3,3′,5,5′-Tetrabromophenolsulfonphthalein, BPB
Empirical Formula (Hill Notation):
C19H10Br4O5S
CAS Number:
Molecular Weight:
669.96
MDL number:
EC Index Number:
204-086-2

Quality Level

grade

ACS reagent

Agency

reag. Ph. Eur.

form

solid

loss

≤1% loss on drying, 110°C

visual transition interval

3.0-4.6, greenish yellow to blue-violet

mp

270-273 °C (decomposition)

bulk density

730 kg/m3

storage temp.

2-30°C

InChI

1S/C19H10Br4O5S/c20-12-5-9(6-13(21)17(12)24)19(10-7-14(22)18(25)15(23)8-10)11-3-1-2-4-16(11)29(26,27)28-19/h1-8,24-25H

InChI key

UDSAIICHUKSCKT-UHFFFAOYSA-N

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Analysis Note

Transition range: pH 3.0 - pH 4.6greenish yellow - blue violet
Appearance of solution: passes test
Loss on drying (110 °C): ≤ 1
Transition range (according to ACS): passes test
Sensitivity test: passes test

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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