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  7. Thermo Scientific Chemicals Chlorophenol Red

Thermo Scientific Chemicals Chlorophenol Red

Product Code. 11417254
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25 g
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Product Code. 11417254 Supplier Thermo Scientific Chemicals Supplier No. B21623.14
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Estimated Shipment: 11-08-2026
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Description

CAS: 4430-20-0 | C19H12Cl2O5S | 423.26 g/mol

Used to detect chlorine dioxide in drinking water. Transition Interval: From pH 4.8 (yellow) to pH 6.7 (violet). Also used in transport studies of goldfish renal tubules.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Used to detect chlorine dioxide in drinking water. Transition Interval: From pH 4.8 (yellow) to pH 6.7 (violet). Also used in transport studies of goldfish renal tubules.

Solubility
Soluble in water (30 mg/ml), ethanol (80 mg/ml), and methyl cellusolve (50 mg/ml).

Notes
Transition interval: pH 4.8 (yellow) to 6.4 (red)
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 4430-20-0
Molecular Formula C19H12Cl2O5S
Molecular Weight (g/mol) 423.26
MDL Number MFCD00005877
InChI Key WWAABJGNHFGXSJ-UHFFFAOYSA-N
Synonym chlorophenol red, chlorphenol red, chlorphenolsulfonphthalein, dichlorophenolsulfonephthalein, 3,3-bis 3-chloro-4-hydroxyphenyl-3h-benzo c 1,2 oxathiole 1,1-dioxide, chlorophenol red indicator, 3',3-dichlorophenolsulfonphthalein, phenol, 4,4'-1,1-dioxido-3h-2,1-benzoxathiol-3-ylidene bis 2-chloro, 3',3'-dichlorophenolsulfonaphthalein, 3',3-dichlorophenol-sulfonphthalein
PubChem CID 20486
IUPAC Name 2-chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenol
SMILES OC1=CC=C(C=C1Cl)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C(Cl)=C1

Specifications

Quantity 25 g
Beilstein 354053
Solubility Information Soluble in water (30mg/ml),ethanol (80mg/ml),and methyl cellusolve (50mg/ml).
Formula Weight 432.28
Chemical Name or Material Chlorophenol Red

RUO – Research Use Only

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