CRM-MCLR

Certified Calibration Solution for Microcystin-LR

Microcystin-LR (MCLR) is a cyclic peptide toxin produced by freshwater cyanobacteria [1]. Microcystins have been associated with domestic and wild animal poisonings and pose a threat to human health through contamination of drinking water supplies. CRM-MCLR is a certified instrument calibration solution prepared to aid the analyst in the determination of microcystin-LR. Each ampoule contains approximately 0.5 mL of a solution of the toxin dissolved in aqueous methanol (1:1, v/v) at a concentration suitable for calibration of liquid chromatography experiments.

Table 1: Certified concentration values for microcystin-LR in CRM-MCLR.

Microcystin-LR

CAS registry no: 101043-37-2

Molecular formula: C 49 H 74 N 10 O 12

Molecular weight: 995.2 g/mol

[M+H] + : m/z 995.5560

Expiry date: 1 year from date of sale.

Storage conditions: freezer (-12 °C or lower)

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