Name | Sodium Dimercaptosuccinate |
Synonyms | Sodium dimercaptosuccinate Sodium Dimercaptosuccinate sodium 3-carboxy-2,3-disulfanylpropanoate Meso-2,3-dimercaptosuccinic acid sodium salt Succinic acid, 2,3-dimercapto-, sodium salt, meso- |
CAS | 71799-86-5 |
InChI | InChI=1/C4H6O4S2.Na/c5-3(6)1(9)2(10)4(7)8;/h1-2,9-10H,(H,5,6)(H,7,8);/q;+1/p-1 |
Molecular Formula | C4H5NaO4S2 |
Molar Mass | 204.2 |
Boling Point | 267.6°C at 760 mmHg |
Flash Point | 115.6°C |
Vapor Presure | 0.00232mmHg at 25°C |
This product is 2, 3-dimercaptosuccinic acid disodium salt trihydrate. Calculated as dried product, the content of C4H4Na204S2 shall not be less than 95.0%.
take this product l.Og, add water 10ml to dissolve, according to the law (General 0631),pH value should be 6.0~7.5.
take l.Og of this product, add water 10ml to dissolve, the solution should be colorless; If the color is colored, it should not be deeper compared with the standard colorimetric solution of brown red No. 4 (general rule 0901 first method).
take this product, with phosphorus pentoxide as desiccant, at 60°C under reduced pressure drying to constant weight, weight loss should be 18.0% ~ 24.0% (General 0831).
take this product, dissolve it with appropriate solvent, and treat it by membrane filtration method. Check it according to law (General rule 1101). (For aseptic dispensing)
take the dried to constant weight of this product about O.lg, precision weighing, 100ml flask, add water 30ml dissolved, add dilute acetic acid 2ml, precision plus silver nitrate titration solution (0.lmol/L)50ml, strong shaking, water bath heating for 2~3 minutes, cold, diluted with water to the scale, shake, filter, precision volume continued filtrate 50ml, in a plug Erlenmeyer flask, add 2ml of nitric acid and 2ml of ammonium ferric sulfate indicator solution, and use ammonium thiocyanate titration solution (0.1 mol/L) titration, and the results of the titration were corrected with a blank test. Each 1 ml of silver nitrate titration solution (0.1 mol/L) corresponds to 5.656mg of C4H4NagO4S2.
antidote.
sealed and kept in cool and dark place.
This product is a sterile powder of disodium dimercaptobutane. Based on the average loading, disodium dimercaptobutane (C4H4Na204S2 • 3H20) shall be 95.0% to 105.0% of the label loading.
This product is white to yellowish powder; There is a special odor similar to garlic.
take this product, according to dimercaptobutanedisodium under the identification test, show the same reaction.
The content under the item of difference in loading was about O.lg, which was precisely weighed and measured according to the method under the item of dimercaptobutanedisodium. Each 1 ml of silver nitrate titration solution (0.1 mol/L) corresponds to 7.006mg of C4H4Na2O4S2.3H20.
with disodium dimercaptobutane.
(1)0.5g (2)lg
sealed and kept in a cool dark place.
Use | disodium dimercaptosuccinate, also known as sodium dimercaptosuccinate and sodium dimercaptosulphate, is the first broad-spectrum metal antidote in China. |