Chlorophenol Red CAS: 4430-20-0
MF: C19H12Cl2O5S
MW: 423.27
Used to detect chlorine dioxide in drinking water.

Chlorophenol Red (CAS 4430-20-0)

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Alternate Names: 3′,3′-Dichlorophenolsulfonaphthalein
Application: Chlorophenol Red is used to detect chlorine dioxide in drinking water
CAS Number: 4430-20-0
Molecular Weight: 423.27
Molecular Formula: C19H12Cl2O5S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data (including water content).
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Chlorophenol red is a pH indicator that can also detect chlorine dioxide in drinking water. Transition Interval: From pH 4.8 (yellow) to pH 6.7 (violet).


References

1. Sweetin, D.L., et al. 1996. Talanta. 43: 103-108. PMID: 18966469

Appearance :
Crystalline or crystalline powder or chunks
Physical State :
Solid
Solubility :
Soluble in water (30 mg/ml), ethanol (80 mg/ml), and methyl cellusolve (50 mg/ml).
pH :
4.8-6.7, yellow to violet
Storage :
Store at room temperature
Melting Point :
216° C
Boiling Point :
~583.0° C at 760 mmHg (Predicted)
Density :
~1.6 g/cm3 (Predicted)
Refractive Index :
n20D 1.70 (Predicted)
pK Values :
pKa: 6.0(Lit.)
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
3
PubChem CID :
MDL Number :
MFCD00005877
EC Number :
224-619-2
Beilstein Registry :
354053
SMILES :
OC1=C(Cl)C=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC(Cl)=C(O)C=C1

Download SDS (MSDS)

Certificate of Analysis

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