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Merck
CN

C216

Calciseptine from Dendroaspis polylepis polylepis (black mamba)

>98%, amorphous powder

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About This Item

Empirical Formula (Hill Notation):
C299H468N90O87S10
CAS Number:
Molecular Weight:
7036.12
UNSPSC Code:
12352200
MDL number:
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assay

>98%

form

amorphous powder

storage temp.

−20°C

Biochem/physiol Actions

Selective L-type Ca2+ channel blocker; from the venom of the black mamba Dendroaspis polylepis polylepis.

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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O Yasuda et al.
Biochemical and biophysical research communications, 194(2), 587-594 (1993-07-30)
Calciseptine (CaS) is a natural peptidic L-type Ca2+ channel blocker consisting of 60 amino acids with four disulfide bonds. The effects of synthetic CaS on the binding of various ligands to Ca2+ channels of rat brain synaptosomal membranes were studied.
J R de Weille et al.
Proceedings of the National Academy of Sciences of the United States of America, 88(6), 2437-2440 (1991-03-15)
The venom of the black mamba contains a 60-amino acid peptide called calciseptine. The peptide has been fully sequenced. It is a smooth muscle relaxant and an inhibitor of cardiac contractions. Its physiological action resembles that of drugs, such as

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