Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

Safety Information

SML3814

Sigma-Aldrich

Firibastat

≥98% (HPLC)

Synonym(s):

QGC-001, (3S)-3-Amino-4-[[(2S)-2-amino-4-sulfobutyl]disulfanyl]butane-1-sulfonic acid, (3S,3′S)-4,4′-Dithiobis(3-aminobutane-1-sulfonic acid, QGC 001, QGC001, RB 150, RB-150, RB150

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Empirical Formula (Hill Notation):
C8H20N2O6S4
CAS Number:
648927-86-0
Molecular Weight:
368.51
MDL number:
MFCD20921962
UNSPSC Code:
12352200
NACRES:
NA.77
Pricing and availability is not currently available.

Quality Level

100

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

H2O: 2 mg/mL, clear (Warmed)

storage temp.

-10 to -25°C

Biochem/physiol Actions

Firibastat (RB150; QGC001) is an orally active, blood-brain barrier-permeant prodrug composed of two molecules of disulfide-linked aminopeptidase A (APA; glutamyl aminopeptidase) active-site inhibitor EC33 (Ki = 300 nM) that are released via the action of brain reductase in the brain. Firibastat exhibits antihypertensive efficacy in vivo (Blood pressure reduction ED50 = 30 mg/kg via p.o. in spontaneously hypertensive rats).
Orally active, brain-permeant precursor of the aminopeptidase A (APA; glutamyl aminopeptidase) active-site inhibitor EC33 with antihypertensive efficacy in vivo.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

SML3814-BULK:
SML3814-10MG:
SML3814-50MG:
SML3814-VAR:

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000269512
0000269510
0000255770
0000255770
0000269512

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Brain ACE2 activation following brain aminopeptidase A blockade by firibastat in salt-dependent hypertension
Clinical Science (London, England : 1979), 135(6), 775-791 (2021)
Brain renin-angiotensin system blockade by systemically active aminopeptidase A inhibitors: a potential treatment of salt-dependent hypertension
Proceedings of the National Academy of Sciences of the USA, 101(20), 7775-7780 (2004)
Central antihypertensive effects of chronic treatment with RB150: an orally active aminopeptidase A inhibitor in deoxycorticosterone acetate-salt rats
Journal of Hypertension, 36(3), 641-650 (2018)
Effects of firibastat in combination with enalapril and hydrochlorothiazide on blood pressure and vasopressin release in hypertensive DOCA-salt rats
Biomedicine and Pharmacotherapy, 40, 111682-111682 (2021)
Orally active aminopeptidase A inhibitors reduce blood pressure: a new strategy for treating hypertension
Hypertension, 51(5), 1318-1325 (2008)
View All Related Papers

Questions

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service