32638-88-3
32638-88-3 structure
- Name: pyrogallol red
- Chemical Name: pyrogallolsulfonephthalein
- CAS Number: 32638-88-3
- Molecular Formula: C19H12O8S
- Molecular Weight: 400.35900
- Catalog: Chemical reagent Organic reagent Phenols
- Create Date: 2018-05-24 08:00:00
- Modify Date: 2025-08-20 08:30:43
| Name | pyrogallolsulfonephthalein |
|---|---|
| Synonyms |
MFCD00005046
Pyrogallol Red PYROGALLOLROT PYROGALLOLRED PYHogallol Red EINECS 251-134-3 3',4',5',6'-Tetrahydroxyspiro[benzo[c][1,2]oxathiole-3,9'-xanthene] 1,1-dioxide PYROGALLOL SULFONPHTHALEIN |
| Density | 1.082 g/mL at 20 °C |
|---|---|
| Boiling Point | 309 °C(lit.) |
| Melting Point | 133-134 °C(lit.) |
| Molecular Formula | C19H12O8S |
| Molecular Weight | 400.35900 |
| Exact Mass | 400.02500 |
| PSA | 141.90000 |
| LogP | 3.70630 |
| Appearance | Liquid | Dark brown |
| Vapour density | 4.4 (vs air) |
| Vapour Pressure | 10 mm Hg ( 167.7 °C) |
| Index of Refraction | n20/D 1.387 |
| Storage condition | Store at +5°C to +30°C. |
| Water Solubility | Soluble in water, ammonium hydroxide (10 mg/ml), and ethanol. |
| Personal Protective Equipment | Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter |
|---|---|
| Hazard Codes | Xn |
| Risk Phrases | 20/21/22-52/53-68-36/37/38 |
| Safety Phrases | 36/37-61-24/25-22-36-26 |
| RIDADR | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | UX2800000 |
| HS Code | 2934991000 |
|
~74%
32638-88-3 |
| Literature: Cihelnik, Simon; Stibor, Ivan; Lhotak, Pavel Collection of Czechoslovak Chemical Communications, 2002 , vol. 67, # 12 p. 1779 - 1789 |
|
~%
32638-88-3 |
| Literature: Collection of Czechoslovak Chemical Communications, , vol. 21, p. 1522,1525 |
| HS Code | 2934991000 |
|---|---|
| Summary | 2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |