Arsenazo III

Reference: ARS-100

Arsenazo III

Arsenazo III 2,2′-(1,8-Dihydroxy-3,6-disulfonaphthylene-2,7-bisazo)bisbenzenearsonic acid C₂₂H₁₈As₂N₄O₁₄S₂

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DESCRIPTION

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CAS # 1668-00-4
Molecular weight: 776.37
Formula: C₂₂H₁₈As₂N₄O₁₄S₂
Appearance: Deep brown powder
Assay (HPLC): > 85 %
Sulphated ash: < 0.2 %
Loss on drying (120°C): < 8 %
Specific extinction (1%/1cm): 300 – 450
Maximum of absorption (in water): 535 – 543
Specific extinction (1%/1cm): 300 – 450
Max. of absorption (in buffer pH 10): 571 – 576
Pb: < 10 ppm
Ca: < 100 ppm
Cr: < 50 ppm
Cd: < 50 ppm
Fe: < 100 ppm
Cu: < 50 ppm
Storage: Room Temperature
Stability: At least 2 years at R.T

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