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Phenolphthalein

Name: Phenolphthalein
Brand: TargetMol
SKU: T0017
Price: 29 USD
Availability: InStock
Rating: 5 (10 reviews)

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Catalog No. T0017Cas No. 77-09-8

Alias Phthalin, Phthalimetten, Euchessina

Phenolphthalein (Phthalin) is an acid-base indicator which is colorless in acid solution, but turns pink to red as the solution becomes alkaline. It is used medicinally as a cathartic.

Phenolphthalein

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Purity: 99.89%

Catalog No. T0017Alias Phthalin, Phthalimetten, EuchessinaCas No. 77-09-8

Phenolphthalein (Phthalin) is an acid-base indicator which is colorless in acid solution, but turns pink to red as the solution becomes alkaline. It is used medicinally as a cathartic.

Pack Size	Price	Availability	Quantity
10 g	$29	In Stock
1 mL x 10 mM (in DMSO)	$42	In Stock

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Batch Information

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Purity:99.89%

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COA HNMR HPLC

Product Introduction

Bioactivity

Description	Phenolphthalein (Phthalin) is an acid-base indicator which is colorless in acid solution, but turns pink to red as the solution becomes alkaline. It is used medicinally as a cathartic.
In vitro	Instructions Phenolphthalein indicator (0.5% phenolphthalein ethanol solution) preparation method: Take 0.5g phenolphthalein, dissolve it in 95% ethanol, no need to add water, dilute to 100mL. Color change range: pH8.3～10.0 (colorless→red), add 1～2 drops to 100mL titration solution.
Synonyms	Phthalin, Phthalimetten, Euchessina

Chemical Properties

Molecular Weight	318.32
Formula	C₂₀H₁₄O₄
Cas No.	77-09-8
Smiles	OC1=CC=C(C=C1)C1(OC(=O)C2=C1C=CC=C2)C1=CC=C(O)C=C1
Relative Density.	Ca. 1.296. Temperature:20.6 °C.
Color	White
Appearance	Solid

Storage & Solubility Information

Storage

keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature.

Solubility Information

DMSO: 60 mg/mL (188.49 mM), Sonication and heating are recommended.

Solution Preparation Table

DMSO

	1mg	5mg	10mg	50mg
1 mM	3.1415 mL	15.7075 mL	31.4149 mL	157.0746 mL
5 mM	0.6283 mL	3.1415 mL	6.2830 mL	31.4149 mL
10 mM	0.3141 mL	1.5707 mL	3.1415 mL	15.7075 mL
20 mM	0.1571 mL	0.7854 mL	1.5707 mL	7.8537 mL
50 mM	0.0628 mL	0.3141 mL	0.6283 mL	3.1415 mL
100 mM	0.0314 mL	0.1571 mL	0.3141 mL	1.5707 mL

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In Vivo Formulation Calculator (Clear solution)

Please enter your animal experiment information in the following box and click Calculate to obtain the mother liquor preparation method and in vivo formula preparation method:

For example, your dosage is 10 mg/kg Each animal weighs 20 g, and the dosage volume is 100 μL . TargetMol | Animal experiments

A total of 10 animals were administered, and the formula you used is 5% TargetMol | reagent

DMSO+30% PEG300+5% Tween 80+60% Saline/PBS/ddH₂O. So your working solution concentration is 2 mg/mL。

Mother liquor preparation method: 2 mg of drug dissolved in 50 μL DMSO TargetMol | reagent

(mother liquor concentration of 40 mg/mL), if you need to configure a concentration that exceeds the solubility of the product, please contact us first.

Preparation method for in vivo formula: Take 50 μL DMSO TargetMol | reagent

main solution, add 300 μLPEG300 TargetMol | reagent

mix well and clarify, then add 50 more μL Tween 80, mix well and clarify, then add 600 more μLSaline/PBS/ddH₂O TargetMol | reagent

mix well and clarify

For Reference Only. Please develop an appropriate dissolution method based on your laboratory animals and route of administration.

All types of co-solvents required for the protocol, such asDMSO, PEG300/ PEG400, Tween 80, SBE-β-CD, corn oil are available for purchase on the TargetMol website with a simple click.

Dose Conversion

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Tech Support

Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc