Chlorophenol Red

Build a 3D molecular model of pH indicatorchlorophenol red with Molymod atoms & bonds.

Chlorophenol red is a brown crystalline powder commonly used as an acid-base indicator. It indicates acidity in the range of 4.8 to 6.7 by changing from a yellow color (at pH 4.8) to a violet color (at pH 6.7).

With the increased use of chlorine dioxide in water treatment, chlorophenol red is an ideal indicator for colorimetric based measuring techniques since reaction with chlorine dioxide changes it from yellow to colorless. Because one mole of chlorophenol red reacts with 2 moles of chlorine dioxide, companies can easily estimate the concentration of ClO2 present in water.

A molecular model of Chlorophenol Red in the Molymod Hybrid Dome style uses the atoms & bonds in the parts list below. Our free 3D Molecular Model Builder shows other styles & allows for image rotation as an assembly guide.

Chemical data
Molecular Weight Chemical Formula
423.2668 C19H12Cl2O5S

Chlorophenol Red molecular model built with Molymod Atoms & Bonds

Hybrid Dome
62053
Open Sphere
62009
Orbit Basic
68845NV
Orbit Flexible
68827W 68847W
Parts Synonyms
Parts
P/NDescriptionQTY
60103EAtom, Molymod, red (oxygen), 1 hole, 20mm2
60111EAtom, Molymod, green (halogen), 1 hole, 17mm2
60150EAtom, Molymod, white (hydrogen), hemisphere, 19mm12
60200EAtom, Molymod, red (oxygen), 2 hole, 105 degrees3
60400EAtom, Molymod, black (carbon), 4 hole, 109.5 degrees, 23mm19
60403EAtom, Molymod, yellow (sulfur), 4 hole, 109.5 degrees, 23mm1
61012EBond, Molymod, grey (single), 20mm21
61013EBond, Molymod, grey (double/triple), 35mm18
61015EBond, Molymod, opaque, 2mm (for spacefilling models)12
Synonyms
2-chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxobenzo[c]oxathiol-3-yl]phenol , 2-chloro-4-[3-(3-chloro-4-hydroxy-phenyl)-1,1-dioxo-benzo[c]oxathiol-3-yl]phenol , 2-chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxo-3-benzo[c]oxathiolyl]phenol , 2-chloro-4-[3-(3-chloro-4-hydroxy-phenyl)-1,1-diketo-benzo[c]oxathiol-3-yl]phenol , 2-chloro-4-[3-(3-chloro-4-hydroxy-phenyl)-1,1-dioxo-benzo[c][1,2]oxathiol-3-yl]phenol , 123301-42-8 , 27459-85-4 , 4430-20-0 , 199524_ALDRICH , 3',3''-Dichlorophenolsulfonphthalein , 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis(2-chlorophenol) S,S-dioxide , EINECS 224-619-2 , NSC 7828 , Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-chloro- , Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-chloro-, S,S-dioxide (8CI)(9CI) , AIDS030500 , Chlorophenol red indicator , AIDS-030500 , Chlorophenol red , Chlorphenol Red , Chlorphenolsulfonphthalein , Dichlorophenolsulfonephthalein , NSC7828 , Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[2-chloro-, S,S-dioxide , 3?,3?-Dichlorophenolsulfonaphthalein , ZINC03861447 , SBB005925