WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 319539

CAS#: 918407-35-9

Description: Avoralstat, also known as BCX-4161, is a potent and orally active Kallikrein inhibitor and Bradykinin inhibitor. Avoralstat may be potentially useful for treatment for Hereditary angioedema. Avoralstat inhibits plasma kallikrein and suppresses bradykinin production. Bradykinin is the mediator of acute swelling attacks in HAE patients.

Chemical Structure

CAS# 918407-35-9

Theoretical Analysis

MedKoo Cat#: 319539
Name: Avoralstat
CAS#: 918407-35-9
Chemical Formula: C28H27N5O5
Exact Mass: 513.2012
Molecular Weight: 513.554
Elemental Analysis: C, 65.49; H, 5.30; N, 13.64; O, 15.58

Size Price Shipping out time Quantity
10mg USD 190 2 Weeks
25mg USD 350 2 Weeks
50mg USD 550 2 Weeks
100mg USD 950 2 Weeks
200mg USD 1450 2 Weeks
500mg USD 2250 2 Weeks
1g USD 2950 2 Weeks
2g USD 4950 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-05. Prices are subject to change without notice.

Avoralstat, purity > 95%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Synonym: BCX-4161; BCX 4161; BCX4161; Avoralstat

IUPAC/Chemical Name: 3-{2-[(4-carbamimidoylphenyl)carbamoyl]-4-ethenyl-5-methoxyphenyl}-6-[(cyclopropylmethyl)carbamoyl]pyridine-2-carboxylic acid


InChi Code: InChI=1S/C28H27N5O5/c1-3-16-12-21(26(34)32-18-8-6-17(7-9-18)25(29)30)20(13-23(16)38-2)19-10-11-22(33-24(19)28(36)37)27(35)31-14-15-4-5-15/h3,6-13,15H,1,4-5,14H2,2H3,(H3,29,30)(H,31,35)(H,32,34)(H,36,37)


Solid powder

>95% (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).

Soluble in DMSO, not in water

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:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 513.554 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.

Select a batch to recalculate based on the batch molecular weight:
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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*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

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1: Aygören-Pürsün E, Magerl M, Graff J, Martinez-Saguer I, Kreuz W, Longhurst H,
Nasr I, Bas M, Straßen U, Fang L, Cornpropst M, Dobo S, Collis P, Sheridan WP,
Maurer M. Prophylaxis of hereditary angioedema attacks: A randomized trial of
oral plasma kallikrein inhibition with avoralstat. J Allergy Clin Immunol. 2016
Sep;138(3):934-936.e5. doi: 10.1016/j.jaci.2016.03.043. Epub 2016 May 11. PubMed
PMID: 27302552.

2: Cornpropst M, Collis P, Collier J, Babu YS, Wilson R, Zhang J, Fang L, Zong J,
Sheridan WP. Safety, pharmacokinetics, and pharmacodynamics of avoralstat, an
oral plasma kallikrein inhibitor: phase 1 study. Allergy. 2016
Dec;71(12):1676-1683. doi: 10.1111/all.12930. Epub 2016 Jul 20. PubMed PMID: