A 127722
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MedKoo CAT#: 584447

CAS#: 195704-72-4

Description: A 127722 is highly potent and a selective ETA endothelin receptor antagonist (IC50 values are 0.11 nM and 98 nM for human ETA and ETB receptors, respectively)that attenuates hypoxia-induced pulmonary hypertension in rats.


Chemical Structure

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A 127722
CAS# 195704-72-4

Theoretical Analysis

MedKoo Cat#: 584447
Name: A 127722
CAS#: 195704-72-4
Chemical Formula: C29H38N2O6
Exact Mass: 510.273
Molecular Weight: 510.631
Elemental Analysis: C, 68.21; H, 7.50; N, 5.49; O, 18.80

Price and Availability

Size Price Availability Quantity
10.0mg USD 350.0 2 Weeks
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Synonym: A 127722; A127722; A-127722

IUPAC/Chemical Name: rel-(2R,3R,4S)-4-(1,3-Benzodioxol-5-yl)-1-[2-(dibutylamino)-2-oxoethyl]-2-(4-methoxyphenyl)-3-pyrrolidinecarboxylic acid

InChi Key: MOTJMGVDPWRKOC-QPVYNBJUSA-N

InChi Code: InChI=1S/C29H38N2O6/c1-4-6-14-30(15-7-5-2)26(32)18-31-17-23(21-10-13-24-25(16-21)37-19-36-24)27(29(33)34)28(31)20-8-11-22(35-3)12-9-20/h8-13,16,23,27-28H,4-7,14-15,17-19H2,1-3H3,(H,33,34)/t23-,27-,28+/m1/s1

SMILES Code: O=C([C@H]1[C@H](C2=CC=C(OC)C=C2)N(CC(N(CCCC)CCCC)=O)C[C@@H]1C3=CC=C(OCO4)C4=C3)O

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 510.631 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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Winn et al (1996) 2,4-Diarylpyrrolidine-3-carboxylic acids--potent ETA selective endothelin receptor antagonists. 1. Discovery of A-127722. J.Med.Chem. 39 1039 PMID: 8676339

Opgenoth et al (1996) Pharmacological characterization of A-127722: an orally active and highly potent ETA-selective receptor antagonist. J.Pharmacol.Exp.Ther. 276 473 PMID: 8632312

Chen et al (1997) The orally active nonpeptide endothelin A-receptor antagonist A-127722 prevents and reverses hypoxia-induced pulmonary hypertension and pulmonary vascular remodeling in Sprague-Dawley rats. J.Cardiovasc.Pharmacol 29 713 PMID: 9234651

A 127722

10.0mg / USD 350.0