Chemodex

Thymolphthalein

Product Code:
 
CDX-T0534
Product Group:
 
Dyes, Stains, and Probes
Supplier:
 
Chemodex
Regulatory Status:
 
RUO
Shipping:
 
Ambient
Storage:
 
Short term: +20°C. Long term: +20°C
Chemical Structure

Chemical Structure 

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CodeSizePrice
CDX-T0534-G01010 g£64.00
Quantity:
CDX-T0534-G05050 g£151.00
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This product comes from: Switzerland.
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Further Information

Appearance:
White, faint beige powder or crystals.
CAS:
125-20-2
Description:
Thymolphthalein is a phthalein dye used as an acid-base (pH) indicator. It changes color depending on the pH of the solution. The pH transition range is from < 9.3 (colorless), 9.3-10.5 (light blue) to > 10.5 (deep blue). Spectral Data: lambdamax (UV-Vis): 590-598nm (0.1M NaOH). Specific Absorbance (E 1%/1cm): >750 @lambdamax. Can be used as a building block to synthesize Thymolphthalein monophosphate which is used as a substrate in enzymatic assays (e.g. alkaline phosphatase, ALP) and is used in clinical diagnostics, forensic tests and enzyme kinetics.
EClass:
32160000
Form:
solid
GHS:
GHS07
Handling Advice:
Keep under inert gas. Very hygroscopic.
Hazards:
H302-H315-H319-H335
InChi:
InChI=1S/C28H30O4/c1-15(2)20-13-23(17(5)11-25(20)29)28(22-10-8-7-9-19(22)27(31)32-28)24-14-21(16(3)4)26(30)12-18(24)6/h7-16,29-30H,1-6H3
InChi Key:
LDKDGDIWEUUXSH-UHFFFAOYSA-N
MDL:
MFCD00005909
Molecular Formula:
C28H30O4
Molecular Weight:
430.54
Package Type:
Vial
Precautions:
P261-P280-P305+P351+P338
Purity:
>99% (HPLC)
Signal word:
Warning
SMILES:
O=C1C2=CC=CC=C2C(C3=C(C)C=C(O)C(C(C)C)=C3)(C4=C(C)C=C(O)C(C(C)C)=C4)O1
Solubility:
Soluble in DMSO or EtOH (1mg/ml).
Source / Host:
Synthetic
Transportation:
Non-hazardous
UNSPSC Number:
41105331
Use & Stability:
Stable for at least 2 years after receipt when stored at RT.

Documents

References

(1) M. Mohamed, et al.; Can. J. Chem. 57, 1294 (1979) | (2) T. Lin, et al.; Chem. Commun. (Camb) 59, 12986 (2023)