Skip to Content
Merck
All Photos(1)

Key Documents

C1055

Sigma-Aldrich

Cromakalim

Synonym(s):

(±)-trans-6-Cyano-3,4-dihydro-2,2-dimethyl-4-(2-oxopyrrolidin-1-yl)-2H-1-benzopyran-3-ol

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C16H18N2O3
CAS Number:
Molecular Weight:
286.33
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

form

powder

Quality Level

storage temp.

2-8°C

SMILES string

CC1(C)Oc2ccc(cc2[C@H]([C@@H]1O)N3CCCC3=O)C#N

InChI

1S/C16H18N2O3/c1-16(2)15(20)14(18-7-3-4-13(18)19)11-8-10(9-17)5-6-12(11)21-16/h5-6,8,14-15,20H,3-4,7H2,1-2H3/t14-,15+/m1/s1

InChI key

TVZCRIROJQEVOT-CABCVRRESA-N

Application

Cromakalim has been used:
  • as a potassium channel agonist to study its response to an acute increase in downstream pressure in rat lymphatic vessels.
  • as a potassium channel opener to study its effects on the release of transmitters from adrenergic nerves in rat vas deferens.
  • as a potassium channel activator to study its effects on the release of transmitters from purinergic and cholinergic nerves in the rat detrusor muscle.

Biochem/physiol Actions

Cromakalim is an activator of the potassium channel. It is involved in the relaxation of the vascular smooth muscles. Cromakalim exhibits anti-hypertensive activity.

Features and Benefits

This compound is featured on the Potassium Channels page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

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’.

Already Own This Product?

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

Visit the Document Library

I Cavero et al.
The Journal of pharmacology and experimental therapeutics, 248(3), 1261-1268 (1989-03-01)
Cromakalim (BRL 34915), a K+ channel activator, and diltiazem relaxed isolated rat aortic rings contracted with a low KCl concentration (25 mM). Gilbenclamide (0.1-3 microM) did not modify base-line resting tension or responses to KCl but prevented the vasorelaxant effects
E Grana et al.
European journal of pharmacology, 319(1), 57-64 (1997-01-14)
The present study was carried out to look at the influence of the K+ channel opener cromakalim, compared with suramin and prazosin, on the contractile response evoked by single-pulse field stimulation and exogenous agonists in epididymal and prostatic portions of
Cromakalim blocks the purinergic response evoked in rat vas deferens by single-pulse electrical stimulation
Grana E, et al.
European Journal of Pharmacology, 319(1), 57-64 (1997)
Effect of cromakalim on the purinergic and cholinergic transmission in the rat detrusor muscle
Boselli C, et al.
European Journal of Pharmacology, 335(1), 23-30 (1997)
BRL 34915 (cromakalim) activates ATP-sensitive K+ current in cardiac muscle
Sanguinetti M C, et al.
Proceedings of the National Academy of Sciences, 85(21), 8360-8364 (1988)

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