CAS No:51-30-9
The detailed specifications are as below:
| Items | Standard |
| Appearance | White to practically white, odor less, crystalline powder,having a slightly bitter taste.Gradually darkens on exposure to air and light. Its solutions become pink to brownish pink on standing exposed to air, doing so almost immediately when rendered alkaline. Its solution (1to100) has a pH of almost 5. |
| Solubility | Freely soluble in water; sparingly soluble in alcohol and less soluble in dehydrated alcohol;insoluble in chloroform and in ether. |
| Identification | A):Infrared Absorption:The infrared absorption spectrum should be concordant with the reference spectrum. |
| B):Ultraviolet Absorption | |
| Melting range | 165°C-170°C |
| Loss on drying | ≤1.0% |
| residual solvent | Ethanol≤0. 5% |
| Residue on ignition | ≤0. 2% |
| Su1phate | ≤0. 2% |
| Limit of isoproterenone | Its absorptivity at 310nm, determined in solution containing 2mg per ml, is not more than 0. 2 |
| Chloride content | 13.9%-14.6% |
| Palladium residue | ≤1ppm |
| Assay | 97.0-101.5% |