Saxitoxin Acetate ,STX,石房蛤***,***性贝毒,PSP
Saxitoxin (Saxitoxin Acetate) 蛤蚌***(石房蛤***)
Description Saxitoxin (STX) is a neurotoxin isolated from marine dinoflagellates
Alexandrium tamarense. It is a selective sodium channel blocker. The medical importance of saxitoxin is in relation to red tide in shellfish and causes the paralytic shellfish poisoning (PSP). The blocking of the sodium channel produces a flaccid paralysis that le***es its victim calm and c***cious through the progression of symptoms. Death is from respiratory failure. Saxitoxin has been an important tool in cellular research in describing the function of the sodium channel.
Molecular weigh 419.39 Molecular formula C10H17O4 •2C2H4O2
Case Number 220355-66-8 Solubility MeOH, EtOH or DMSO
Storage Stable in -25 oC for 2 year
Form Lyophilized solid Lyophilized solid
Appearance(color) White to off-White White
Purity ≥ 95% by HPLC ≥ 95%
Method: Liquid chromatography with post-Column oxidation and
fluorescence detection
Material: Saxitoxin (STX) 10μg/ml
Column: Co***osil C18-MS 5μm, 4.6x250mm
Mobile phase: 2mM NaHSA in 30mM NH4H2PO4 (pH 7.1):CH3CN=93:7
Flow rate: 0.8 ml/min
Oxidation: 7mM HIO4 in 50mM K2HPO4 (pH9)
Coil reaction: 10m Teflon tubing (0.3 mm i.d.) at 85℃
Effluent acidified: 0.5M CH3COOH 0.25ml/min
Detection: Fluorescence, Ex. 330nm, Em. 390nm