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CAS 520-10-5

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Arsenazo I

Description:
Arsenazo I, with the CAS number 520-10-5, is a synthetic organic compound primarily used as a colorimetric reagent for the detection and quantification of metal ions, particularly in analytical chemistry. It is characterized by its ability to form stable complexes with various metal ions, including those of transition metals, which results in distinct color changes that can be measured spectrophotometrically. The compound features a complex structure that includes azo and phenolic functional groups, contributing to its chelating properties. Arsenazo I is particularly noted for its sensitivity and selectivity towards certain metal ions, making it valuable in environmental monitoring and biochemical assays. However, it is important to handle this compound with care due to its potential toxicity and environmental impact. In laboratory settings, it is typically used in buffered solutions to maintain optimal pH conditions for complex formation. Overall, Arsenazo I serves as an important tool in analytical chemistry for metal ion analysis.
Formula:C16H13AsN2O11S2
InChI:InChI=1S/C16H13AsN2O11S2/c20-12-7-9(31(25,26)27)5-8-6-13(32(28,29)30)15(16(21)14(8)12)19-18-11-4-2-1-3-10(11)17(22,23)24/h1-7,20-21H,(H2,22,23,24)(H,25,26,27)(H,28,29,30)
InChI key:InChIKey=NJZWLEZSGOTSHR-UHFFFAOYSA-N
SMILES:OC=1C2=C(C=C(S(=O)(=O)O)C1N=NC3=C([As](=O)(O)O)C=CC=C3)C=C(S(=O)(=O)O)C=C2O
Synonyms:
  • (3E)-3-[(2-arsonophenyl)hydrazono]-5-hydroxy-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid
  • 2,7-Naphthalenedisulfonic acid, 3-[(2-arsonophenyl)azo]-4,5-dihydroxy-
  • 2,7-Naphthalenedisulfonic acid, 3-[(o-arsonophenyl)azo]-4,5-dihydroxy-
  • 2,7-Naphthalenedisulfonic acid, 3-[2-(2-arsonophenyl)diazenyl]-4,5-dihydroxy-
  • 2-(2-Arsonophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic acid
  • 2-(2-Arsonophenylazo)chromotropic acid
  • 2-(2′-Arsonophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonic acid
  • 3-[2-(2-Arsonophenyl)diazenyl]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid
  • Arsenazo
  • Arsenazo 1
  • See more synonyms
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