CRM-YTX

Certified Calibration Solution for Yessotoxin

The yessotoxins (YTXs) are a group of polycyclic ether compounds produced by various dinoflagellate algae including Protoceratium reticulatum, Lingulodinium polyedrum and Gonyaulax spinifera [1]. The maximum allowable levels of certain YTXs in shellfish for human consumption is regulated [2]. CRM-YTX-c is a certified calibration solution of YTX in methanol and is a replacement for CRM-YTX-b,

which was released in 2012.

Table 1: Certified concentration value for CRM-YTX

Yessotoxin (protonated form)

CAS registry No.: 112514-54-2

Molecular formula: C 55 H 82 O 21 S 2

Molecular weight: 1143.4 g/mol

[M-H] - : m/z 1141.4717

[M-2H] 2- : m/z 570.2322

Yessotoxin (sodium salt form)

Molecular formula: C 55 H 80 O 21 S 2 Na 2

Molecular weight: 1187.3 g/mol

Period of validity: 1 year from date of sale

Storage conditions: -12 °C or below

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