| Customization: | Available |
|---|---|
| CAS No.: | 115-40-2 |
| Formula: | C21h16br2o5s |
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Bromocresol purple indicator for microbial limit check cas 115-40-2
| Bromocresol Purple Basic information | |
| Product Name: | Bromocresol Purple |
| CAS: | 115-40-2 |
| MF: | C21H16Br2O5S |
| MW: | 540.22 |
| EINECS: | 204-087-8 |
| Bromocresol Purple Chemical Properties | |
| Melting point | 240 °C (dec.)(lit.) |
| density | 1.6509 (estimate) |
| Fp | 36 °C |
| storage temp. | Store at RT. |
| solubility | ethanol: soluble1mg/mL |
| pka | 6.21, 6.3, 6.4(at 25ºC) |
| form | Solid |
| Boiling point | 590.2±50.0 °C(Predicted) |
| color | Purplish-brown |
| PH | pH : 5.2~6.8 |
| PH Range | 5.2(yellow)-6.8(purple) |
| Water Solubility | practically insoluble |
| λmax | 419nm, 433nm, 591nm |
| Merck | 141,387 |
| BRN | 359618 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| Major Application | Waveguides, fuel cells, sensors, sol-gel technology, display device, falsification-proof security paper, paints, detergents, identifying fresh and stale rice, detecting lactic acid bacteria, dental materials, vaginal infection test method |
| InChIKey | ABIUHPWEYMSGSR-UHFFFAOYSA-N |
| CAS DataBase Reference | 115-40-2(CAS DataBase Reference) |
| EPA Substance Registry System | Bromcresol Purple (115-40-2) |
| Item | Standard |
| The maximum absorption wavelength:PH 35.2)nm | 427~431 |
| The maximum absorption wavelength:(PH 56.8) nm | 588~590 |
| Mass absorption coefficient(L/cm.g)PH 5.2,Dry sample) | 40.5~45.0 |
| Mass absorption coefficient(L/cm.g)PH 56.8,Dry sample) | 100.0~110.0 |
| PH Discoloration domain | 5.2(yellow)~6.8(purple) |
| Dilute alkali dissolution test | Conforms |
| Residue on ignition(Sulfate) | 0.1 |
| Loss on Drying | 0.5 |
| Appearance | Conforms |
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