A4297320
Phel red indicator , 0.02%（w/v）inwater , 143-74-8
Synonym(s):
Phenol red;Phenolsulfonphthalein;Phenolsulfonphthalein solution
CAS NO.：143-74-8
Empirical Formula: C19H14O5S
Molecular Weight: 354.38
MDL number: MFCD00003552
EINECS: 205-609-7
| Pack Size | Price | Stock | Quantity |
| 100ml | RMB31.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | >300 °C |
| Boiling point: | >300°C |
| bulk density | 200-300kg/m3 |
| Density | 1.445 Mg m-3 |
| refractive index | 1.5300 (estimate) |
| Flash point: | >300°C |
| storage temp. | no restrictions. |
| solubility | 1 M NaOH: soluble1mg/mL |
| form | Solid |
| pka | 7.9(at 25℃) |
| color | Red |
| PH Range | 6.6(YELLOW)-8.0(RED) |
| Odor | Odorless |
| PH | 6.8～8.4 |
| Water Solubility | 0.77 g/L |
| λmax | 557nm, 558nm, 360nm, 423nm, 433nm |
| ε(extinction coefficient) | ≥10000 at 288-294nm in H2O ≥55000 at 555-561nm in H2O ≥7000 at 357-363nm in H2O |
| Merck | 14,7247 |
| BRN | 326470 |
| Major Application | Display device, sol-gel matrix, photoreceptors, fuel cells, waveguides, paints, detergents, cosmetics, antiperspirant composition, diapers, screening bacteria, detecting viable cells, diagnosis of urogenital ureaplasmosis, treatment of pathogen infections, amyloid-associated diseases, glaucoma, pulmonary hypertension, asthma, chronic obstructive pulmonary disease, erectile dysfunction, Raynaud’s syndrome, heparin overdose, vulvodynia, wound healing, psychoactive drugs, evaluating dental caries activity |
| InChIKey | BELBBZDIHDAJOR-UHFFFAOYSA-N |
| LogP | 3.020 |
| CAS DataBase Reference | 143-74-8(CAS DataBase Reference) |
| EPA Substance Registry System | Phenol Red (143-74-8) |
Description and Uses
Phenol red belongs to the class of triphenylmethane dyes and is widely used in the textile industry.
As indicator in 0.02-0.05% alcohol solution. pH 6.8 yellow, 8.4 red.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H335 |
| Precautionary statements | P261-P264-P271-P280-P302+P352-P304+P340+P312 |
| Hazard Codes | Xi,C |
| Risk Statements | 36/37/38-34 |
| Safety Statements | 37/39-26-45-36/37/39-27 |
| WGK Germany | 3 |
| RTECS | SJ7490000 |
| TSCA | Yes |
| HS Code | 29349990 |
| Toxicity | LD50 orl-rat: >600 mg/kg CTOXAO 4(2),185,71 |
