Phenol red
Product Description
| Product | Phenol red |
| CAS | 143-74-8 |
| Formula | C19H14O5S |
| Synonym | 3,3-bis(p-Hydroxyphenyl)-3H-2,1-benzoxathiol-1,1-dioxide, 4,4’-(3h-2,1-benzoxathiol-3-ylidene)bisphenol,s,s-dioxide, 4,4’-(3h-2,1-benzoxathiol-3-ylidene)diphenol,s,s-dioxide, abcolphenolredf/a, fenolipuna, Phenol,4,4’-(3H-2,1-benzoxathiol-3-ylidene)bis-,S,S-dioxide, phenol,4,4’-(3h-2,1-benzoxathiol-3-ylidene)di-,s,s-dioxide, Phenolrde, Phenol red, 4,4-(3H-2,1-Benzoxathiol-3-ylidene) diphenol S,S-dioxide, Phenol, 4,4-(3H-2,1-benzoxathiol-3-ylidene) bis-, S,S-dioxide, Phenol, 4,4-(3H-2,1-benzoxathiol-3-ylidene) di-, S.S-dioxide, Phenolsulfonephthalein, Phenolsulfonphthalein Phenolsulphonphthalein, PSP, Sulfonphthal |
Typical Product Specifications
| Molecular weight | 354.38 |
| EINECS | 205-609-7 |
| Boiling Point | >300°C |
| Water solubility | 0.77 g/L |
| Merck | 14,7247 |
| BRN Number | 326470 |
| Storage Temperature | Store at room temperature. |
| Flash Point | >300°C |
| Melting Point | 300 °C |
| Chemical Structure | ![]() |
| Notes | Phenol red uses and applications include: pH indicator useful in the pH range (6.8) yellow to 8.4 (red); analytical reagent; diagnostic agent for measuring kidney function (injected intramuscularly or intravenously) and intestinal absorption of drugs (taken orally); commonly as the water-solution sodium salt or as a soln. in dil. sodium bicarbonate or sodium hydroxide Suggested storage of Phenol red: Store R.T. |
| Class | Specialty Chemicals |
| Function | Supplement |

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