| Name | o-Cresol Red, sodium salt |
| Synonyms | Cresol Red Cresolsodiumsalt Cresol Red sodium salt LABOTEST-BB LT00159735 CRESOL RED SODIUM SALT o-Cresol Red, sodium salt CRESOL RED, WATER SOLUBLE 2-CRESOLSULFONEPHTHALEIN SODIUM SALT o-Cresolsulphonephthalein sodium salt phenol,4,4'-(3h-2,1-benzoxathiol-3-ylidene)bis[2-methyl-,s,s-dioxide,monosod Sodium hydrogen 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-methylphenolate) S,S-dioxide sodium 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxido-3H-2,1-benzoxathiol-3-yl]-2-methylphenolate 2-[(Z)-(4-hydroxy-3-methylphenyl)(3-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate sodium 2-[(Z)-(4-hydroxy-3-methylphenyl)(3-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate |
| CAS | 62625-29-0 |
| EINECS | 263-654-8 |
| InChI | InChI=1/C21H18O5S.Na/c1-13-11-15(7-9-18(13)22)21(16-8-10-19(23)14(2)12-16)17-5-3-4-6-20(17)27(24,25)26;/h3-12,22H,1-2H3,(H,24,25,26);/q;+1/p-1/b21-16- |
| Molecular Formula | C21H17NaO5S |
| Molar Mass | 404.41 |
| Melting Point | 250°C (dec.)(lit.) |
| Water Solubility | SOLUBLE |
| Solubility | Solubility Soluble in water, ethanol |
| Appearance | Powder |
| Color | Brown |
| Maximum wavelength(λmax) | 425nm |
| pKa | 1.0(at 25℃) |
| Storage Condition | Store at RT. |
| MDL | MFCD00001618 |
| Hazard Symbols | Xn - Harmful![]() |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29147000 |
| use | indicator. |
| EPA chemical information | information provided by: ofmpub.epa.gov (external link) |