Sozoiodolic Acid
Title: Sozoiodolic Acid
CAS Registry Number: 554-71-2
CAS Name: 4-Hydroxy-3,5-diiodobenzenesulfonic acid
Additional Names: 2,6-diiodophenol-4-sulfonic acid
Trademarks: Optojod
Molecular Formula: C6H4I2O4S
Molecular Weight: 425.97
Percent Composition: C 16.92%, H 0.95%, I 59.58%, O 15.02%, S 7.53%
Literature References: Made by iodizing potassium p-phenolsulfonic acid by means of ICl, or by KI and KIO3. Prepn of salts: Rupp, Herman, Arch. Pharm. 254, 488 (1916).
 
Derivative Type: Trihydrate
CAS Registry Number: 6160-10-7
Properties: White, almost odorless needles, becoming anhydr at 100°. mp 120° when anhydr; dec at 190°. Freely sol in water, alcohol, ether, glycerol.
Melting point: mp 120° when anhydr
 
Derivative Type: Mercury deriv
CAS Registry Number: 515-43-5
Additional Names: Sozoiodole-mercury
Molecular Formula: C6H2HgI2O4S
Molecular Weight: 624.54
Percent Composition: C 11.54%, H 0.32%, Hg 32.12%, I 40.64%, O 10.25%, S 5.13%
Properties: Fine, orange-yellow powder. Poisonous! Practically insol in water, alcohol, ether, glycerol. Sol in NaCl or KI soln.
 
Derivative Type: Sodium salt dihydrate
CAS Registry Number: 6160-08-3
Additional Names: Sozoiodole-sodium
Trademarks: Dijozol (Trommsdorff)
Molecular Formula: C6H3I2NaO4S.2H2O
Molecular Weight: 483.98
Percent Composition: C 14.89%, H 1.46%, I 52.44%, Na 4.75%, O 19.83%, S 6.63%
Properties: Crystals. Sol in water, alcohol, glycerol. Practically insol in ether.
 
Derivative Type: Zinc salt hexahydrate
CAS Registry Number: 6160-09-4
Additional Names: Sozoiodole-zinc
Molecular Formula: C12H6I4O8S2Zn.6H2O
Molecular Weight: 1023.42
Percent Composition: C 14.08%, H 1.77%, I 49.60%, O 21.89%, S 6.27%, Zn 6.39%
Properties: Needles, sol in water, alc, glycerol. Practically insol in ether.
 
Use: In a test for albumin.
Therap-Cat: Diagnostic aid (radiopaque medium in retrograde pyelography). Hg deriv formerly in syphilis.
Keywords: Diagnostic Aid (Radiopaque Medium).
 
 
Status: This monograph has been retired and is no longer subject to revision or update.

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