CRM-PTX2
Certified Calibration Solution for Pectenotoxin-2
Pectenotoxins (PTXs) are a group of polyether lactone toxins produced by several dinoflagellate species such as Dinophysis fortii and Dinophysis acuta [1,2]. PTXs have been associated with diarrhetic shellfish poisoning due to their co-occurrence in shellfish and plankton with the okadaic acid group and because of their toxicity to mice via intraperitoneal injection. However, they have not yet
been established to be orally toxic to mice and have not been implicated in human illness [3]. Nonetheless, PTXs are regulated by the European Union at 160 µg/kg of tissue equivalent in combination with okadaic acid and dinophysistoxins [4]. CRM-PTX2-b is a certified calibration solution of PTX2 in methanol with a concentration of 5.13 µmol/L.
Table 1: Certified concentration values for CRM-PTX2
Pectenotoxin-2
CAS registry No.: 97564-91-5
Molecular formula: C 47 H 70 O 14
Molecular weight: 859.07
[M+NH 4 ] + : m/z 876.5104
Expiry date: 1 year from date of sale
Storage conditions: -12 °C or below
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