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Arsenazo iii

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Arsenazo iii

(Science: chemical) metallochrome indicator that changes colour when complexed to the calcium ion under physiological conditions. It is used to measure local calcium ion concentrations in vivo.

Pharmacological action: dyes, indicators and reagents.

chemical name: 2,7-Naphthalenedisulfonic acid, 3,6-bis((2-arsonophenyl)azo)-4,5-dihydroxy-