1. Others
  2. Others
  3. (±)-WS75624B


Cat. No.: HY-100312
Handling Instructions

(±)-WS75624B is an endothelin converting enzyme (ECE) inhibitor with an IC50 of 0.03 μg/mL.

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

(±)-WS75624B Chemical Structure

(±)-WS75624B Chemical Structure

CAS No. : 188048-45-5

Size Price Stock
1 mg USD 2630 Get quote
5 mg USD 4208 Get quote
10 mg USD 6733 Get quote

* Please select Quantity before adding items.

Top Publications Citing Use of Products
  • Biological Activity

  • Protocol

  • Technical Information

  • Purity & Documentation

  • References


(±)-WS75624B is an endothelin converting enzyme (ECE) inhibitor with an IC50 of 0.03 μg/mL.

IC50 & Target

IC50: 0.03 μg/mL (ECE)[1]

In Vitro

Endothelin converting enzyme (ECE) inhibitors, WS75624A and (±)-WS75624B, have been isolated from the fermentation broth of Saccharothrix sp. No. 75624. WS75624A and (±)-WS75624B show highly potent ECE inhibitory activity, and both have IC50s of 0.03 μg/mL. WS75624A and (±)-WS75624B also show other metalloprotease (collagenase and neutral endopeptidase) inhibitory activity with IC50 s of 1 μg/mL. (±)-WS75624B markedly inhibits ECE activity with an IC50 value of 0.03 μg/mL, while it weakly inhibit collagenase and NEP activities with IC50s of 1.0 μg/mL and 1.25 μg/mL, respectively[1].

In Vivo

(±)-WS75624B inhibits big endothelin-induced pressor effect when administered to SD rat intravenously with big ET-1. WS75624 B (30 mg/kg) markedly attenuates the hypertensive effect of big ET-1 (1 nmol/kg,iv) the inhibiting the conversion of big ET-1 to ET-1[1].


Please store the product under the recommended conditions in the Certificate of Analysis.

Animal Administration

Male Sprague-Dawley rats (250-300 g) are anesthetized with Pentobarbital sodium (50 mg/kg of boby weight). A femoral artery catheter is implanted for monitoring arterial pressure and heart rate, and a femoral vein catheter is used for injection of saline or drugs. Blood pressure and heart rate is recorded from the femoral artery through a cannula (PE-50) connected to a pressure transducer coupled to a Biophysiograph RM 6000 system. Two groups of rats are injected with the following: Big ET-1 (1 nmol/kg) alone (n=7), big ET-1 (1 nmol/kg) with (±)-WS75624B (30 mg/kg) iv bolus injection (n=7).

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight









Room temperature in continental US; may vary elsewhere

  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

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

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

Inquiry Online

Your information is safe with us. * Required Fields.

Product name



Applicant name *


Email address *

Phone number *


Organization name *

Country or Region *


Requested quantity *


Bulk Inquiry

Inquiry Information

Product Name:
Cat. No.:


Cat. No.: HY-100312