N-(6-Aminohexyl)-5-chloro-1-naphthalenesulfonamide hydrochloride

Empirical Formula (Hill Notation):
C16H21ClN2O2S · HCl
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
MDL number:
PubChem Substance ID:

Quality Level

Mode of action

cell membrane | interferes
enzyme | inhibits

storage temp.


SMILES string




InChI key


Gene Information

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N-(6-Aminohexyl)-5-chloro-1-naphthalenesulfonamide hydrochloride has been used to study its effect of on coated pit staining.


25, 100, 250 mg in poly bottle

Biochem/physiol Actions

N-(6-Aminohexyl)-5-chloro-1-naphthalenesulfonamide (W-7) is a calmodulin antagonist. It can prevent calcium-dependent protein kinase, that is sensitive to phospholipid.

Features and Benefits

This compound is a featured product for Cyclic Nucleotide research. Click here to discover more featured Cyclic Nucleotide products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.


13 - Non Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

N-(6-Aminohexyl)-5-chloro-1-naphthalenesulfonamide (W-7), a calmodulin antagonist, also inhibits phospholipid sensitive calcium-dependent protein kinase
Schatzman RC, et al.
Biochimica et biophysica acta. General subjects, 755(1), 144-147 (1983)
L H Wang et al.
The Journal of cell biology, 123(5), 1107-1117 (1993-12-01)
The clathrin-coated pit lattice is held onto the plasma membrane by an integral membrane protein that binds the clathrin AP-2 subunit with high affinity. In vitro studies have suggested that this protein controls the assembly of the pit because membrane...
Matteo Coen et al.
The American journal of pathology, 183(3), 996-1009 (2013-07-11)
Several observations suggest the expansion of a distinct medial smooth muscle cell (SMC) subset in atherosclerosis and restenosis. We characterized the phenotypic features of SMC subsets in cultures derived from human carotid endarterectomy specimens. Specimens comprised an undiseased portion (thin...
M Osawa et al.
FEBS letters, 442(2-3), 173-177 (1999-02-03)
Small-angle X-ray scattering and nuclear magnetic resonance were used to investigate the structural change of calcium-bound calmodulin (Ca2+/CaM) in solution upon binding to its antagonist, N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide (W-7). The radius of gyration was 17.4+/-0.3 A for Ca2+/CaM-W-7 with a molar ratio...
Zhang-Fan Chen et al.
Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology, 162(4), 113-119 (2012-04-18)
The polychaete Hydroides elegans (Serpulidae, Lophotrochozoa) is a problematic marine fouling organism in most tropical and subtropical coastal environment. Competent larvae of H. elegans undergo the transition from the swimming larval stage to the sessile juvenile stage with substantial morphological...
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