Chlorophosphonazo III (Technical Grade)

CAS: 1914-99-4

Ref. TR-C375385

Product Information

• Name: Chlorophosphonazo III (Technical Grade)
• Synonyms: 3,6-bis[(4-Chloro-2-phosphonophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic Acid, 3,6-bis[2-(4-Chloro-2-phosphonophenyl)diazenyl]-4,5-dihydroxy-2,7-naphthalenedisulfonic Acid, Chlorphosphonazo III, Dichlorophosphonazo III
• Brand: TRC
• Description: Applications Chlorophosphonazo III is a colorimetric indicator for the spectrophotometric determination of Thorium, Ca2+ and Mg2+ ions, and other alkaline earth metals.References Durham, A., Walton, J.: Cell Calcium, 4, 47 (1983); Ivanov, V., Ermakova, N.: Vestn Mosk U Khim+, 41, 174 (2000); Uhrovcik, J., et al.: Eur. Chem. Bull., 1, 414 (2012)

Chemical properties

• Molecular weight: 757.36
• Formula: C₂₂H₁₆Cl₂N₄O₁₄P₂S₂
• Color/Form: Neat
• InChI: InChI=1S/C22H16Cl2N4O14P2S2/c23-10-1-3-12(14(7-10)43(31,32)33)25-27-19-16(45(37,38)39)5-9-6-17(46(40,41)42)20(22(30)18(9)21(19)29)28-26-13-4-2-11(24)8-15(13)44(34,35)36/h1-8,29-30H,(H2,31,32,33)(H2,34,35,36)(H,37,38,39)(H,40,41,42)
• InChI key: InChIKey=LMBABJNSZGKTBA-NBHCHVEOSA-N
• SMILES: O=P(O)(O)c1cc(Cl)ccc1/N=N/c1c(S(=O)(=O)O)cc2cc(S(=O)(=O)O)c(/N=N/c3ccc(Cl)cc3P(=O)(O)O)c(O)c2c1O