P-XYLENOLPHTHALEIN
- CAS No.
- 50984-88-8
- Chemical Name:
- P-XYLENOLPHTHALEIN
- Synonyms
- Xylenolphthalein;P-XYLENOLPHTHALEIN;P-xylenolphthaleine;p-diphenolphthalein;p-Xylenolphthalein;p-xylenolphthalein (pH 9.0-10.5);3,3-bis(4-hydroxy-2,5-xylyl)phthalide;2',5',2'',5''-TETRAMETHYLPHENOLPHTHALEIN;3,3-bis(4-hydroxy-2,5-dimethylphenyl)-2-benzofuran-1-one;P-xylenolphthalein, 2′,5′,2″,5″-tetramethylphenolphthalein
- CBNumber:
- CB8233468
- Molecular Formula:
- C24H22O4
- Molecular Weight:
- 374.43
- MDL Number:
- MFCD00042785
- MOL File:
- 50984-88-8.mol
- MSDS File:
- SDS
| Melting point | 276°C |
|---|---|
| Boiling point | 569.6±50.0 °C(Predicted) |
| Density | 1.270±0.06 g/cm3(Predicted) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Solubility Insoluble in water; soluble in ethanol, acetone |
| pka | 9.7(at 25℃) |
| form | powder |
| color | Pale yellow or cream-colored |
| PH Range | Colorless (9.0) to indigo-blue (10.5) |
| BRN | 346799 |
| Major Application | Inks, detergent, photoresist, toothpaste and mouthwash, disinfectant, cosmetics, paints |
| InChI | InChI=1S/C24H22O4/c1-13-11-21(25)15(3)9-19(13)24(20-10-16(4)22(26)12-14(20)2)18-8-6-5-7-17(18)23(27)28-24/h5-12,25-26H,1-4H3 |
| InChIKey | PXCIPOXPHMTCIL-UHFFFAOYSA-N |
| SMILES | C1(=O)C2=C(C=CC=C2)C(C2=CC(C)=C(O)C=C2C)(C2=CC(C)=C(O)C=C2C)O1 |
| UNSPSC Code | 12352200 |
SAFETY
Risk and Safety Statements
| PPE | Eyeshields, Gloves, type N95 (US) |
|---|---|
| WGK Germany | 3 |
| HS Code | 2932.99.7000 |
| Storage Class | 13 - Non Combustible Solids |
P-XYLENOLPHTHALEIN price More Price(28)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 95620 | p-Xylenolphthalein for microscopy | 50984-88-8 | 5g | $468 | 2022-05-15 | Buy |
| TCI Chemical | X0017 | p-Xylenolphthalein | 50984-88-8 | 1g | $21 | 2026-04-30 | Buy |
| Matrix Scientific | 094350 | 3,3-Bis(4-hydroxy-2,5-dimethylphenyl)-isobenzofuran-1(3H)-one | 50984-88-8 | 1.00g | $189 | 2026-05-18 | Buy |
| Matrix Scientific | 094350 | 3,3-Bis(4-hydroxy-2,5-dimethylphenyl)-isobenzofuran-1(3H)-one | 50984-88-8 | 5.00g | $504 | 2026-05-18 | Buy |
| Matrix Scientific | 094350 | 3,3-Bis(4-hydroxy-2,5-dimethylphenyl)-isobenzofuran-1(3H)-one | 50984-88-8 | 10.00g | $788 | 2026-05-18 | Buy |
P-XYLENOLPHTHALEIN Chemical Properties, Uses, Production
Uses
p-Xylenolphthalein is related to phenolphthalein which is used as a pH change indicator.
Synthesis
95-87-4
85-44-9
50984-88-8
General procedure for the synthesis of 3,3-bis-(4-hydroxy-3,6-dimethylphenyl)-1-(3H)-isobenzofuranone from 2,5-dimethylphenol and phthalic anhydride: a mixture of 2,5-dimethylphenol (0.133 mol), phthalic anhydride (0.074 mol), reaction medium (0.416 mol) and Lewis acid (0.029 mol ) were placed in a reaction flask, stirred and heated at 90 °C for 5 hours. Upon completion of the reaction, the reaction mixture was cooled to room temperature and subsequently slowly poured into an ice-water mixture to induce precipitation of the product. The precipitate was collected by filtration and washed with plenty of water to remove impurities. The crude product was dried and recrystallized from methanol to afford pure 3,3-bis-(4-hydroxy-3,6-dimethylphenyl)-1-(3H)-isobenzofuranone as light yellow crystals in 85% yield. The product was analyzed by IR (KBr) showing that the characteristic absorption peaks were located at 3393 cm^-1 (O-H stretching vibration), 1729 cm^-1 (C=O stretching vibration), and 1611 cm^-1 (C=C stretching vibration of the aromatic ring).The 1H-NMR (DMSO-d6) spectrum showed the following: δ 9.40 (s, 2H, 2×OH), 1.95 (s, 12H, 4 × CH3), 6.59-6.63 (m, 4H, aromatic protons), 7.46-7.91 (m, 4H, aromatic protons) ppm. mass spectrometry analysis showed the molecular ion peak m/z 374 (M+).
References
[1] Patent: US2006/222601, 2006, A1. Location in patent: Page/Page column 25
[2] Tetrahedron Letters, 2009, vol. 50, # 46, p. 6261 - 6263
[3] Zeitschrift fuer Anorganische und Allgemeine Chemie, 1929, vol. 178, p. 54,56
[4] Roczniki Chemii, 1931, vol. 11, p. 103,109; dtsch. Ref. S. 111
[5] Chem. Zentralbl., 1931, vol. 102, # I, p. 2473
P-XYLENOLPHTHALEIN Preparation Products And Raw materials
P-XYLENOLPHTHALEIN Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Anhui Tianjia Chemical Science & Technology Co.,Ltd. | 0550-2392698 18355069969 | tianjiachem@hotmail.com | China | 18 | 57 |
| Wuhan haorong Biotechnology Co., Ltd | 18186132299 18186132299 | 489527785@qq.com | China | 2606 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Maya High Purity Chemicals | +86 (573) 82222445 (0)18006601000 452520369 | sales@maya-r.com | China | 11693 | 57 |
| Chengdu Ai Keda Chemical Technology Co., Ltd. | 4008-755-333 18080918076 | 800078821@qq.com | China | 9706 | 55 |
| TOKYO CHEMICAL INDUSTRY CO., LTD. | 03-36680489 | Sales-JP@TCIchemicals.com | Japan | 28364 | 80 |
| 9ding chemical ( Shanghai) Limited | 4009209199 | sales@9dingchem.com | China | 22497 | 55 |
| Huainan Kedi Chemical Factory | 0554-2106669 | sales1@kedichem.com | China | 4914 | 55 |
View Latest Price from P-XYLENOLPHTHALEIN manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-17 | P-XYLENOLPHTHALEIN
50984-88-8
|
1KG | 98% | 1000kgs | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2020-01-09 | P-XYLENOLPHTHALEIN
50984-88-8
|
$2.00 | 1g | 98%min | Career Henan Chemical Co |
-
- P-XYLENOLPHTHALEIN
50984-88-8
- $0.00
- 98%
- Shaanxi Dideu New Materials Co. Ltd
-
- P-XYLENOLPHTHALEIN
50984-88-8
- $2.00
- 98%min
- Career Henan Chemical Co
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