34725-61-6
Bromophenol blue sodium salt
CAS: 34725-61-6
Molecular Formula: C19H9Br4NaO5S
34725-61-6 - Names and Identifiers
34725-61-6 - Physico-chemical Properties
| Molecular Formula | C19H9Br4NaO5S |
| Molar Mass | 691.94 |
| Density | 0.985 g/mL at 25 °C |
| Melting Point | 300 °C |
| Water Solubility | Soluble in water. |
| Appearance | powder |
| Specific Gravity | 0.985 |
| Color | blue, at pH above 4.6 |
| Merck | 14,1444 |
| BRN | 6995701 |
| Storage Condition | room temp |
| Use | Use Bromophenol Blue is a pH indicator. In the range of pH 3.0~4.6, the color changes from yellow to blue. Commonly used as an electrophoresis indicator dye, the electrophoretic migration speed in the gel is in the small molecule nucleic acid or protein region. |
34725-61-6 - Risk and Safety
| 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 | S24/25 - Avoid contact with skin and eyes. S22 - Do not breathe dust. 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 |
34725-61-6 - Nature
| pH range of acid-base indicator discoloration | 3.0 - 4.6, yellow to blue |
| EPA chemical information | Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo-, monosodium salt (34725-61-6) |
Last Update：2024-04-10 22:29:15
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