iotroxic acid CAS 51022-74-3
Introduction：Basic information about iotroxic acid CAS 51022-74-3, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
iotroxic acid Basic information
| Product Name: | iotroxic acid |
| Synonyms: | iotroxic acid;Iotroxic;3,3'-[Oxybis[2,1-ethanediyloxy(1-oxo-2,1-ethanediyl)imino]]bis(2,4,6-triiodobenzoic acid);3,3'-[Oxybis[2,1-ethanediyloxy(1-oxo-2,1-ethanediyl)imino]]bis[2,4,6-triiodobenzoic acid];Biliscopin;SH-213AB;3-[[2-[2-[2-[2-(3-carboxy-2,4,6-triiodoanilino)-2-oxoethoxy]ethoxy]ethoxy]acetyl]amino]-2,4,6-triiodobenzoic acid;Benzoic acid, 3,3'-[oxybis[2,1-ethanediyloxy(1-oxo-2,1-ethanediyl)imino]]bis[2,4,6-triiodo- |
| CAS: | 51022-74-3 |
| MF: | C22H18I6N2O9 |
| MW: | 1215.81 |
| EINECS: | 256-917-3 |
| Product Categories: | |
| Mol File: | 51022-74-3.mol |
iotroxic acid Chemical Properties
| density | 2.4781 (estimate) |
| vapor pressure | 0Pa at 25℃ |
| Water Solubility | 304mg/L at 20℃ |
| LogP | 3.35 at 20℃ |
Safety Information
| Originator | Biliscopin,Schering,W. Germany,1978 |
| Uses | Diagnostic aid (radiopaque medium). |
| Definition | ChEBI: Iotroxic acid is an organic molecular entity. |
| Manufacturing Process | (a) Condensation in dimethylacetamide: To a suspension of 51.5 g ofanhydrous 3-amino-2,4,6-triiodo-benzoic acid (0.1 mol) in 100 ml ofdimethylacetamide were slowly added dropwise, while stirring, 15.5 g of3,6,9-trioxaundecanediacid dichloride (0.06 mol), during which thetemperature gradually rose to about 50°C and the whole passed into solution.After being stirred overnight, the solution was added dropwise to 1 liter of a0.28 N solution of sodium hydroxide, and then 200 ml of 2 N hydrochloric acidwere cautiously added. The precipitate was filtered off with suction, washedwith water and dried. The yield was practically quantitative. (b) Condensation in dioxan: 15.5 g of 3,6,9-trioxaundecane diacid dichloridewere added dropwise at about 95°C to a solution of 51.5 g of anhydrous 3-amino-2,4,6-triiodo-benzoic acid in 52 ml of anhydrous dioxan. After furtherstirring and heating for 3 hours, the solution was cooled, stirred dropwise into500 ml of a 0.4 N solution of sodium hydroxide, and further worked up asdescribed in paragraph (a). The yield was practically quantitative. (c) Purification: To the crude product obtained as described under paragraph(a) or (b) in 300 ml of methanol was slowly added a quantity (about 15 ml) ofa 12 N solution of sodium hydroxide such that a test portion diluted withwater had a pH-value of 8 to 9. After stirring the mixture overnight, thesodium salt of 3,6,9-trioxaundecane-1,11-dioyl-bis-(3-carboxy-2,4,6-triodoanilide) which crystallized out was filtered off with suction, was hed withmethanol and dried. Yield: 92 g (90% of the theoretical yield). A solution of the salt in 900 ml of water was treated with active carbon, andconcentrated hydrochloric acid was added until the pH-value was 1. Theprecipitate was filtered off with suction, washed with water, and dried at 50°C. The yield of pure 3,6,9-trioxaundecane-1,11-dioyl-bis-(3-carboxy-2,4,6-triiodo-anilide) was 80 g (80% of the theoretical yield). The substance meltedat 175°C with sintering. |
| Therapeutic Function | Diagnostic aid (radiopaque medium) |
| Flammability and Explosibility | Not classified |
iotroxic acid Preparation Products And Raw materials
| Raw materials | 2,6-Dibromopyridin-3-amine-->3-Amino-2,4,6-triiodobenzoic acid |
