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199524

Chlorophenol Red

indicator grade

Synonym(s):

3′,3′-Dichlorophenolsulfonaphthalein

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About This Item

Empirical Formula (Hill Notation):
C19H12Cl2O5S
CAS Number:
4430-20-0
Molecular Weight:
423.27
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
24851922
EC Number:
224-619-2
Beilstein/REAXYS Number:
354053
MDL number:
MFCD00005877
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grade

indicator grade

Quality Level

200

form

powder, crystals or chunks

color

dark brown

pH

4.8-6.7, yellow to violet

solubility

95% ethanol: 10 mg/mL

λmax

572 nm

ε (extinction coefficient)

≥12000 at 295-301 nm in 0.1 M NaOH, ≥45000 at 573-579 nm in 0.1 M NaOH, ≥5000 at 368-374 nm in 0.1 M NaOH

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1ccc(cc1Cl)C2(OS(=O)(=O)c3ccccc23)c4ccc(O)c(Cl)c4

InChI

1S/C19H12Cl2O5S/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

WWAABJGNHFGXSJ-UHFFFAOYSA-N

Biochem/physiol Actions

Chlorophenol red is a pH indicator. It is used as an optical transducer of acetyl cholinesterase inhibition by the analytes. Chlorophenol red is also used to selectively determine chlorine dioxide in drinking water. It has been used in the novel assay to detect transformed protoplast-derived Zea mays colonies on Phosphinothricin (PPT).

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pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM9855
BCCK7535
BCCH1315
BCCJ3706
BCCH5508

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Fiber optic monitoring of carbamate pesticides using porous glass with covalently bound chlorophenol red.
Xavier MP
Biosensors And Bioelectronics, 14, 895-905 (2000)
Riccardo Martini et al.
Chembiochem : a European journal of chemical biology, 18(4), 374-377 (2016-12-20)
In recent years many advances have been made in the fight against HIV-1 infection. However, the lack of a vaccine, together with the increasing resistance to the highly active anti-retroviral therapy (HAART), make HIV-1 infection still a serious global emergency.
Chatchaporn Uraipong et al.
Ecotoxicology and environmental safety, 164, 363-369 (2018-08-24)
Two highly sensitive ELISAs for the specific detection of 17β-estradiol (E2) residues were developed, showing the limits of detection (LOD, a concentration at 15% inhibition of color development) of 0.04 ± 0.02 μg/L and 0.05 ± 0.03 μg/L. The average recovery rate of the river water
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Global Trade Item Number

SKUGTIN
199524-10G04061838763297