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

About This Item

Empirical Formula (Hill Notation):
C21H15Br2NaO5S
CAS Number:
62625-30-3
Molecular Weight:
562.20
NACRES:
NA.47
PubChem Substance ID:
24859142
UNSPSC Code:
12171500
MDL number:
MFCD00148896

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Bromocresol Purple solution, 0.04 wt. % in H2O

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

SMILES string

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

InChI key

WNOIORUCCYNQPE-UHFFFAOYSA-M

form

liquid

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

Quality Level

200

Related Categories

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.

Storage Class

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SHBT3166
0000373360
0000346239
0000373360
0000346239

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.

Search for a COA

Already Own This Product?

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

Visit the Document Library

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)
Handbook of Acid-Base Indicators (2007)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service