CAS number： 22832-87-7
Molecular formula： C18H15Cl4N3O4
molecular weight： 479.14
Chemical structure：
| Sr No. | Test | Specification | Result | |||
| 1 | Description | White or almost white crystalline powder or micro Crystalline powder | White crystalline powder | |||
| 2 | Solubility | Sparingly soluble in methanol , slightly soluble in ethanol or chloroform , very slightly soluble in water and in ether . | Sparingly soluble in methanol slightly soluble in ethanol or chloroform, very slightly soluble in water and in ether | |||
| 3 | Identification | |||||
| A) Melting point | In between 1780C to 1840C | 1800C | ||||
| B) Infrared Absorption | IR spectrum of sample should be concordant with IR spectrum of standard | IR spectrum of sample concordant with IR spectrum of standard | ||||
| C) HPLC | As per IP should passes | Test Passes | ||||
| D) Test for Nitrate | Gives the reactions of nitrates | Test Passes | ||||
| 4 | Appearance of solution 10% w/v solution in methanol | Solution is clear , and not more intensely coloured than reference solution YS7 | Test Passes | |||
| 5 | Related substances by HPLC | As per USP | Test Passes | |||
| 6 | Loss on drying | Maximum 0.5 % | 0.22% | |||
| 7 | Sulphated ash | Maximum 0.1 % | 0.03% | |||
| 8 | Assay by auto titrator | In between 98.50 % to 101.50 % | 99.74% | |||
