Skip to Content
Merck
CN

318736

Bromocresol Purple solution

0.04 wt. % in H2O

Synonym(s):

5′,5′′-Dibromo-o-cresolsulfonephthalein sodium salt

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C21H15Br2NaO5S
CAS Number:
Molecular Weight:
562.20
NACRES:
NA.47
PubChem Substance ID:
UNSPSC Code:
12171500
MDL number:
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


form

liquid

Quality Level

concentration

0.04 wt. % in H2O

pH

5.2-6.8, yellow-green to purple

density

0.991 g/mL at 25 °C

λmax

590 nm

ε (extinction coefficient)

≥60000 at 584-590 nm in 10 mM NaOH

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].Cc1cc(cc(Br)c1O)\C(=C2/C=C(C)C(=O)C(Br)=C2)c3ccccc3S([O-])(=O)=O

InChI

1S/C21H16Br2O5S.Na/c1-11-7-13(9-16(22)19(11)24)21(14-8-12(2)20(25)17(23)10-14)15-5-3-4-6-18(15)29(26,27)28-21;/h3-10,24-25H,1-2H3;/q;+1/p-1

InChI key

WNOIORUCCYNQPE-UHFFFAOYSA-M

General description

Bromocresol purple (BCP) is an organic dye and a pH indicator. It changes from yellow (pH 5.2) to purple (6.8). BCP reacts with ammonia to yield ammonium salt. Hence, it can be used as an ammonia sensing probe.


flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

wgk

WGK 1

Storage Class

12 - Non Combustible Liquids



Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library



Handbook of Acid-Base Indicators (2007)
Optical fiber ammonia sensing probes using reagent immobilized porous silica coating as transducers
Tao S, et al.
Sensors and Actuators B, Chemical, 115(1), 158-163 (2006)



Global Trade Item Number

SKUGTIN
318736-500ML04061838202833
318736-100ML04061838202826