CRM-DTX2

Certified Calibration Solution for Dinophysistoxin-2

Dinophysistoxin-2 (DTX2) is a lipophilic toxin produced by marine dinoflagellates that can accumulate in shellfish and cause diarrhetic shellfish poisoning [1]. DTX2 is a regulated structural analogue of okadaic acid (OA), with a methyl group at position C35 instead of

C31 [2]. CRM-DTX2-c is a certified calibration solution of DTX2 in methanol and is a replacement for CRM-DTX2-b [3].

Table 1: Certified concentration and uncertainty for CRM-DTX2-c.

Dinophysistoxin-2

CAS registry No.: 139933-46-3

InChIKey: BRFKTXCAUCYQBT-AKHROESGSA-N

Molecular formula: C 44 H 68 O 13

Molar mass: 805.00 g/mol

[M+H] + : m/z 805.4733

[M?H] - : m/z 803.4587

Period of validity: 2 years from date of sale

Storage conditions: ?12 °C or below

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