| CAS Number | Molecular Formula | Molecular Weight |
|---|---|---|
| 38304-91-5 | C9H15N5O | 209.25 gm/mol |
| Sr. No. | Test Parameter | Specification |
|---|---|---|
| 01. | Description | A White or almost white, Crystalline Powder. |
| 02. | Identification | |
| A. Determine by IR | Compare the spectrum of Minoxidil WRS. | |
| B. Determine by UV |
Solution B Absorption at about 230 nm, 0.406 to 0.448 Absorption at about 281 nm, 0.424 to 0.468 Solution C Absorption at about 230 nm, 0.610 to 0.674 Absorption at about 262 nm, 0.194 to 0.214 Absorption at about 288 nm, 0.222 to 0.242 |
|
| C. Determine by TLC | The principal spot in the chromatogram obtained with the test solution corresponds to that in the chromatogram obtained with the reference solution. | |
| D. Determine by Chemical Test | A green colour develops. The solution becomes greenish yellow on addition of 0.1 ml of 2 M HCl. | |
| 03. | Solubility | Soluble in Methanol and in propylene glycol, Slightly soluble in Water, very slightly soluble in ether, Practically insoluble in Chloroform and in Acetone. |
| 04. | Related Substance by HPLC | In the chromatography obtained with the test solution the sum of the areas of any secondary peak is not greater than 1.5 times the area of the principal peak in the chromatogram obtained with reference solution (a). |
| 05. | Heavy metals | NMT 20 ppm |
| 06. | Sulfated Ash | NMT 0.1 % |
| 07. | LOD | NMT 0.5% |
| 08. | Assay | NLT 98.5 % - NMT 101.0 % |