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    | product Name | 2,3,4,5-tetrachloro-6-[(4-hydroxyphenyl)(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzoic acid |  
    | Synonyms | 3,4,5,6-Tetrachloro-alpha-(p-hydroxyphenyl)-alpha-(4-oxo-2,5-cyclohexadienylidene)-o-toluic acid; benzoic acid, 2,3,4,5-tetrachloro-6-[(4-hydroxyphenyl)(4-oxo-2,5-cyclohexadien-1-ylidene)methyl]- |  
    | Molecular Formula | C20H10Cl4O4 |  
    | Molecular Weight | 456.103 |  
    | InChI | InChI=1/C20H10Cl4O4/c21-16-14(15(20(27)28)17(22)19(24)18(16)23)13(9-1-5-11(25)6-2-9)10-3-7-12(26)8-4-10/h1-8,25H,(H,27,28) |  
    | CAS Registry Number | 128-74-5 |  
    | Molecular Structure | ![128-74-5 2,3,4,5-tetrachloro-6-[(4-hydroxyphenyl)(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzoic acid](http://images-a.chemnet.com/suppliers/chembase/cas82/128-74-5.png)  |  
    | Density | 1.614g/cm3 |  
    | Boiling point | 678°C at 760 mmHg |  
    | Refractive index | 1.699 |  
    | Flash point | 363.8°C |  
    | Vapour Pressur | 2.62E-19mmHg at 25°C |  
    | Hazard Symbols |  |  
    | Risk Codes |  |  
    | Safety Description |  |  |