Name | 4-Aminosalicylic Acid Sodium Salt |
Synonyms | PAS-SODIUM PAS SODIUM SALT Sodium Aminosalicylate SODIUM AMINOSALICYLATE SODIUM P-AMINOSALICYLATE SODIUM 4-AMINOSALICYLATE P-AMINOSALICYLIC ACID SODIUM P-Amino Salicylic Acid Sodium P-AMINOSALICYLIC ACID SODIUM SALT SODIUM 4-AMINO-2-HYDROXY-BENZOATE 4-Aminosalicylic Acid Sodium Salt 4-AMINO-2-HYDROXYBENZOIC ACID SODIUM SALT |
CAS | 8031-28-5 |
EINECS | 1312995-182-4 |
InChI | InChI=1S/C7H7NO3.Na/c8-4-1-2-5(7(10)11)6(9)3-4;/h1-3,9H,8H2,(H,10,11);/q;+1/p-1 |
Molecular Formula | C7H6NNaO3 |
Molar Mass | 175.12 |
Melting Point | 150-151℃, with efferve℃e℃e |
Boling Point | 380.8℃ at 760 mmHg |
Appearance | Crystallization |
Storage Condition | Room Temprature |
MDL | MFCD00064392 |
This product is 4-amino-2-hydroxybenzoate sodium salt dihydrate. The content of C7H6NNa03 shall not be less than 98.0% calculated as anhydrous.
take 0.40g of this product, add 20ml of water to dissolve, and then measure it according to law (General rule 0631). The pH value should be 6.5~8.50.
take a sample l.Og (for oral use) or 2.0g (for injection), after adding 0902 of water to dissolve, the solution should be clear and colorless; In case of turbidity, compare with No. 1 turbidity standard solution (General rule method 1), shall not be more concentrated; If the color is developed, it shall not be deeper in comparison with the yellow 6th Standard Colorimetric solution (General Principles 0901 first method).
take 1.0g of this product, add 25ml of water to dissolve, add 2ml of nitric acid, filter if necessary, and check the filtrate according to law (General rule 0801), and compare with the control solution made of 5.0ml of standard sodium chloride solution, no more concentrated (0.005%).
take 1.0g of this product, add 25ml of water to dissolve, add 2ml of dilute hydrochloric acid, filter, and check the filtrate according to law (General rule 0802), and compare with the control solution made of 5.0ml of standard potassium sulfate solution, no more concentrated (0.05%).
take 0.50g of this product, add 5ml of water to dissolve, add 5ml of potassium iodide test solution and 2g of zinc particles, and add 5mh of 1.6% stannous chloride hydrochloric acid solution to check according to law (General rule 0803) should meet the requirements (0.001%).
operation in the dark; New system in use. Take an appropriate amount of this product, accurately weigh, add mobile phase to dissolve and quantitatively dilute to make a solution containing about lmg per lml, as a test solution; Take an appropriate amount of test solution for precision, dilute with mobile phase to prepare a solution containing lug per lml, as a control solution; Take an appropriate amount of M-aminophenol reference substance, precisely weigh, add mobile phase to dissolve and quantitatively dilute to prepare a solution containing 1ug per lml, as a control solution. The mobile phase consisted of acetonitrile-10% tetrabutylammonium hydroxide solution -0.05mol/L sodium dihydrogen phosphate (100:2:900). The detection wavelength was 220nm. Take the appropriate amount of M-aminophenol, 5-aminosalicylic acid (mesalazine) and sodium p-aminosalicylate respectively, and dissolve them with mobile phase to prepare 5ug of M-aminophenol and 5-aminosalicylic acid for each lml, the mixed solution of sodium para-aminosalicylate 10ug was used as the system applicable solution, and the system applicable solution 20 u1 was taken. The liquid chromatograph was injected and the chromatogram was recorded. The order of peaks was M-aminophenol, 5-aminosalicylic acid and sodium para-aminosalicylate, the degree of separation between adjacent chromatographic peaks shall meet the requirements. The sample solution, the control solution and the reference solution are respectively injected with 20 u1, and the chromatogram is recorded to 3.5 times of the retention time of the main component peak. If there is a peak in the chromatogram of the test solution that is consistent with the retention time of the main peak of the reference solution, the peak area shall be calculated according to the external standard method, and shall not exceed 0.1%, Other single impurity peak area shall not be greater than the main peak area of the control solution (0.1% ) , and the sum of each impurity peak area shall not be greater than 5 times (0.5%) of the main peak area of the control solution. Any peak less than 0.1 times (0.01%) the area of the main peak of the control solution in the chromatogram of the test solution is ignored.
take this product, according to the moisture determination method (General 0832 first method 1), the moisture content should be 16.0% ~ 18.0%.
take this product l. Add anhydrous sodium carbonate (2g) into a platinum crucible, mix with it, flash at about 740 ° C., let it cool, dissolve the residue with 15ml of dilute hydrochloric acid, and check it according to law (General rule 0807), no deeper (O.0015%).
Heavy metals
take this product L. 0g, to the platinum crucible, inspection according to law (General Principles 0821 second law), containing heavy metals shall not exceed 10 parts per million.
take about lg of anhydrous sodium carbonate, spread on the bottom and around the platinum crucible, and take another l. Log, put it on anhydrous sodium carbonate, add a small amount of water to wet it, after drying, burn with small fire to carbonize it, then burn it at 500~600°C to make it ash completely, and let it cool, add hydrochloric acid 5ml and water 23ml to dissolve, check according to law (General Principles 0822 The first law), should comply with the provisions (0.0002%).
take this product, with bacterial endotoxin test water made per lml containing no more than 2.lmg solution, checked by law (General rule 1143), the amount of endotoxin per lmg of sodium aminosalicylate should be less than 0.030EU. (For aseptic dispensing)
take this product, dissolve and dilute with appropriate solvent, after membrane filtration treatment, inspection according to law (General rule 1101), should comply with the provisions. (For aseptic dispensing)
take this product about 0.15g, precision weighing, add water 20ml dissolved, add 50% sodium bromide solution 10ml and glacial acetic acid 25ml, according to the potential titration method (General rule 0701), after 5ml of sodium nitrite titration solution (0.1mol/L) was rapidly added, titration with the titration solution was continued to the end point. Each 1 ml of sodium nitrite titration solution (0.1 mol/L) corresponds to 17.52mg of C7H6NNa03.
anti-tuberculosis drugs.
under shading, sealed and preserved.
This product contains sodium p-aminosalicylate (C7H6NNa03 • 2H20) should be 95.0% ~ 105.0% of label amount.
This product is an enteric-coated tablet, white or off-white after removal of the coating.
Same as sodium p-aminosalicylate.
0.5g
light shielding, sealed storage.
This product is a sterile crystalline powder of sodium aminosalicylate. The amount of sodium p-aminosalicylate (C7H6NNa03 • 2H20) shall be between 95.0% and 105.0% of the label amount, calculated as the average loading.
This product is white or off-white crystalline or crystalline powder.
Same as sodium p-aminosalicylate.
(l)2g (2)4g (3)6g
light shielding, closed storage.