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B157

Sigma-Aldrich

BQ-788

≥95%, solid

Synonym(s):

2,6-Dimethylpiperidinecarbonyl-γ-Methyl-Leu-Nin-(Methoxycarbonyl)-D-Trp-D-Nle, N-[N-[N-[(2,6-Dimethyl-1-piperidinyl)carbonyl]-4-methyl-L-leucyl]-1-(methoxycarbonyl)-D-tryptophyl]-D-norleucine sodium salt

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About This Item

Empirical Formula (Hill Notation):
C34H50N5NaO7
CAS Number:
156161-89-6
Molecular Weight:
663.78
MDL number:
MFCD00797882
UNSPSC Code:
12352200
PubChem Substance ID:
329773192
NACRES:
NA.32

Quality Level

200

Assay

≥95%

form

solid

color

white

solubility

acetonitrile: 0.3 mg/mL
DMSO: 1.2 mg/mL
ethanol: 1.2 mg/mL
H2O: slightly soluble

storage temp.

−20°C

SMILES string

[Na+].CCCC[C@@H](NC(=O)[C@@H](Cc1cn(C(=O)OC)c2ccccc12)NC(=O)[C@H](CC(C)(C)C)NC(=O)N3[C@@H](C)CCC[C@H]3C)C([O-])=O

InChI

1S/C34H51N5O7.Na/c1-8-9-16-25(31(42)43)35-29(40)26(18-23-20-38(33(45)46-7)28-17-11-10-15-24(23)28)36-30(41)27(19-34(4,5)6)37-32(44)39-21(2)13-12-14-22(39)3;/h10-11,15,17,20-22,25-27H,8-9,12-14,16,18-19H2,1-7H3,(H,35,40)(H,36,41)(H,37,44)(H,42,43);/q;+1/p-1/t21-,22+,25-,26-,27+;/m1./s1

InChI key

QCVIFBRTTLMEOV-FUKQNADPSA-M

Gene Information

human ... EDNRB(1910)
mouse ... EDNRB(13618)
rat ... EDNRB(50672)

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Application

BQ-788 has been used as a selective endothelin-B (ETRB) blocker in human airway smooth muscle cells (HASMCs), uterine mesothelial cells (UtMCs)-derived vascular smooth muscle cells (VSMCs), and human umbilical vein endothelial cells (HUVECs)

Biochem/physiol Actions

Selective ETB endothelin receptor antagonist.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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USP

USP

1076115

Bosentan

Endothelin 1, Human and Porcine Endothelin 1, Human and Porcine, CAS 117399-94-7, is a 21-amino acid polypeptide with potent vasoconstrictive action. Activates phospholipase C in fibroblasts expressing ETA receptors.

Sigma-Aldrich

05-23-3800

Endothelin 1, Human and Porcine

John Gatfield et al.
PloS one, 7(10), e47662-e47662 (2012-10-19)
Two endothelin receptor antagonists (ERAs), bosentan and ambrisentan, are currently approved for the treatment of pulmonary arterial hypertension (PAH), a devastating disease involving an activated endothelin system and aberrant contraction and proliferation of pulmonary arterial smooth muscle cells (PASMC). The
Christophe Faisy et al.
Critical care (London, England), 15(5), R208-R208 (2011-09-15)
Lung inflation may have deleterious effects on the alveoli during mechanical ventilation. However, the consequences of stretch during excessive lung inflation on basal tone and responsiveness of human bronchi are unknown. This study was undertaken to devise an experimental model
Lenyta Oliveira Gomes et al.
The Journal of pharmacy and pharmacology, 70(7), 893-900 (2018-03-24)
This study assessed the ability of endothelin-1 (ET-1) to evoke heat hyperalgesia when injected directly into the trigeminal ganglia (TG) of mice and determined the receptors implicated in this effect. The effects of TG ETA and ETB receptor blockade on
Emilie Hitzerd et al.
Hypertension (Dallas, Tex. : 1979), 75(3), 877-884 (2019-12-31)
Increasing evidence suggests a role for the ET (endothelin) system in preeclampsia. Hence, blocking this system with endothelin receptor antagonists (ERAs) could be a therapeutic strategy. Yet, clinical studies are lacking due to possible teratogenic effects of ERAs. In this
Takeshi Nakahara et al.
Scientific reports, 10(1), 9510-9510 (2020-06-13)
Endothelin-1 (ET-1) is well known as the most potent vasoconstrictor, and can evoke histamine-independent pruritus. Recently, its involvement in cutaneous inflammation has begun to draw attention. The upregulation of ET-1 expression in the epidermis of human psoriasis patients has been
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