Appearance: White crystalline
Molecular Formula: C28H30O4
Assay: 98%min
Package: 25kg fiber drum
Sample: Available
Thymolphthalein CAS 125-20-2
Description
Thymolphthalein Product Information
Chemical Name: Thymolphthalein
Synonyms: 3,3-Bis(4-hydroxy-5-isopropyl-o-tolyl)phthalide; thymolphthalein ethanol
CAS No: 125-20-2
Molecular Formula: C28H30O4
Molecular Weight: 430.54
Molecular Structure: 
Assay: 98%min
Thymolphthalein Specification
| Item | Specifications |
| Appearance | White crystalline |
| PH 9.3-10.5 | 9.3(colorless)-10.5(blue) |
| Melting point | 251.0-255.0℃ |
| Ethanol Dissolution | / |
| sodium hydroxide Dissolution | / |
| Residue on Ignition(as sulfate) | ≤0.1% |
Thymolphthalein Usage
Thymolphthalein is sed as acid-base indicator, reagent for blood test, chromatographic analysis.
Acid-base titration: Used as an indicator in analytical chemistry. Its color change range is from pH 9.3 (colorless) to 10.5 (blue). Commonly used in the titration of weak acids by strong bases.
Pharmaceutical field: Used as a reagent in some clinical tests, or for preparing specific experimental colorimetric solutions.
Chemical industry: Used in small quantities for color-changing labeling in some detergents or cosmetics.
Thymolphthalein Package
Regular package: 25kg fiber drum.
Thymolphthalein Storage
Keep in in a cool and dry warehouse inside. Away from fire and heat.
Handle with care, and maintain the integrity of the packaging.