Merck
All Photos(1)

1.08121

Supelco

Bromocresol green

indicator ACS,Reag. Ph Eur

Synonym(s):
Bromocresol green, 3,3′,5,5′-Tetrabromo-m-cresolsulfonphthalein, BCG
Empirical Formula (Hill Notation):
C21H14Br4O5S
CAS Number:
Molecular Weight:
698.01
MDL number:
EC Index Number:
200-972-8

Quality Level

grade

ACS reagent

Agency

reag. Ph. Eur.

form

solid

loss

≤3% loss on drying, 110°C

visual transition interval

3.8-5.4, yellow-green to blue

mp

217-218 °C

bulk density

350 kg/m3

storage temp.

no temp limit

InChI

1S/C21H14Br4O5S/c1-9-12(7-14(22)19(26)17(9)24)21(13-8-15(23)20(27)18(25)10(13)2)11-5-3-4-6-16(11)31(28,29)30-21/h3-8,26-27H,1-2H3

InChI key

FRPHFZCDPYBUAU-UHFFFAOYSA-N

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Analysis Note

Transition range: pH 3.8 - pH 5.4yellowish green - blue
Appearance of solution: passes test
Loss on drying (110 °C): ≤ 3
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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