Pemirolast potassium (Synonyms: TWT-8152; BMY 26517)

Cat. No.: HY-B0538A Purity: 99.93%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

Pemirolast potassium (TWT-8152) is a histamine H1 antagonist and mast cell stabilizer that acts as an antiallergic agent.

For research use only. We do not sell to patients.

Pemirolast potassium Chemical Structure

CAS No. : 100299-08-9

Size	Price	Stock	Quantity
Solid + Solvent
10 mM * 1 mL in Water ready for reconstitution	USD 67	In-stock	Estimated Time of Arrival: December 31
Solution
10 mM * 1 mL in Water	USD 67	In-stock	Estimated Time of Arrival: December 31
Solid
5 mg	USD 39	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 61	In-stock	Estimated Time of Arrival: December 31
50 mg	USD 110	In-stock	Estimated Time of Arrival: December 31
100 mg	USD 165	In-stock	Estimated Time of Arrival: December 31
500 mg	USD 275	In-stock	Estimated Time of Arrival: December 31
1 g		Get quote
5 g		Get quote

or Bulk Inquiry

* Please select Quantity before adding items.

This product is a controlled substance and not for sale in your territory.

Other Forms of Pemirolast potassium:

Pemirolast Get quote

Featured Recommendations

•Related Screening Libraries:

•Related Small Molecules:

•Related Proteins:

Biological Activity
Purity & Documentation
References
Customer Review

Description

Pemirolast potassium (TWT-8152) is a histamine H1 antagonist and mast cell stabilizer that acts as an antiallergic agent. Target: Histamine H1 Receptor Pemirolast potassium (TWT-8152) is a new oral, nonbronchodilator antiallergy medication that is being evaluated for the therapy of asthma [1]. Pemirolast potassium (TWT-8152) inhibits chemical mediator release from tissue mast cells and is also shown to inhibit the release of peptides including substance P, Pemirolast potassium (TWT-8152) reduces kaolin intake by inhibition of substance P release in rats [2]. Pemirolast potassium (TWT-8152) potently attenuates paclitaxel hypersensitivity reactions through inhibition of the release of sensory neuropeptides in rats [3]. Pemirolast potassium (TWT-8152) potassium is used for the treatment of allergic conjunctivitis and prophylaxis for pulmonary hypersensitivity reactions to drugs such as paclitaxel [4].

Clinical Trial

Molecular Weight

266.30

Formula

C₁₀H₇KN₆O

CAS No.

100299-08-9

Appearance

Solid

Color

Light yellow to green yellow

SMILES

O=C1C(C2=N[N-]N=N2)=CN=C3N1C=CC=C3C.[K+]

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility

In Vitro:

H₂O : 50 mg/mL (187.76 mM; Need ultrasonic)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	3.7552 mL	18.7758 mL	37.5516 mL
5 mM	0.7510 mL	3.7552 mL	7.5103 mL
10 mM	0.3755 mL	1.8776 mL	3.7552 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

In Vivo:

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: PBS
Solubility: 100 mg/mL (375.52 mM); Clear solution; Need ultrasonic

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Calculation results:

Working solution concentration: mg/mL

This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).

Purity & Documentation

Purity: 99.93%

Select Batch:

Data Sheet (274 KB) SDS (392 KB)

COA (250 KB) LCMS (92 KB)

Handling Instructions (2659 KB)

References

[1]. Kemp, J.P., et al., Pemirolast, a new oral nonbronchodilator drug for chronic asthma. Ann Allergy, 1992. 68(6): p. 488-91. [Content Brief]

[2]. Tatsushima, Y., et al., Pemirolast reduces cisplatin-induced kaolin intake in rats. Eur J Pharmacol, 2011. 661(1-3): p. 57-62. [Content Brief]

[3]. Itoh, Y., et al., Pemirolast potently attenuates paclitaxel hypersensitivity reactions through inhibition of the release of sensory neuropeptides in rats. Neuropharmacology, 2004. 46(6): p. 888-94. [Content Brief]

[4]. Abelson, M.B., et al., Pemirolast potassium 0.1% ophthalmic solution is an effective treatment for allergic conjunctivitis: a pooled analysis of two prospective, randomized, double-masked, placebo-controlled, phase III studies. J Ocul Pharmacol Ther, 2002 [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

H₂O	1 mM	3.7552 mL	18.7758 mL	37.5516 mL	93.8791 mL
	5 mM	0.7510 mL	3.7552 mL	7.5103 mL	18.7758 mL
	10 mM	0.3755 mL	1.8776 mL	3.7552 mL	9.3879 mL
	15 mM	0.2503 mL	1.2517 mL	2.5034 mL	6.2586 mL
	20 mM	0.1878 mL	0.9388 mL	1.8776 mL	4.6940 mL
	25 mM	0.1502 mL	0.7510 mL	1.5021 mL	3.7552 mL
	30 mM	0.1252 mL	0.6259 mL	1.2517 mL	3.1293 mL
	40 mM	0.0939 mL	0.4694 mL	0.9388 mL	2.3470 mL
	50 mM	0.0751 mL	0.3755 mL	0.7510 mL	1.8776 mL
	60 mM	0.0626 mL	0.3129 mL	0.6259 mL	1.5647 mL
	80 mM	0.0469 mL	0.2347 mL	0.4694 mL	1.1735 mL
	100 mM	0.0376 mL	0.1878 mL	0.3755 mL	0.9388 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

Pemirolast potassium Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Pemirolast100299-08-9TWT-8152 BMY 26517TWT8152TWT 8152BMY26517BMY 26517BMY-26517Histamine ReceptorInhibitorinhibitorinhibit

Your Recently Viewed Products:

Product Name

Salutation

Applicant Name *

Email Address *

Phone Number *

Organization Name *

Department *

Requested quantity *

Country or Region *

Remarks