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1. CAS RN: 81262-93-3
2. Structural Formula:
3. Molecular formula & molecular weight: C16H22N2O3&©|8226;HCL&©|8226;1/2H20 335.83
4. Characters: It¡¯s a white or off-white crystal powder, scentless, bitter taste, ***ringly soluble in water or methanol, slightly soluble in ethanol, insoluble in ether.
5. Quality Standard: CP2005.
Identification 1. Positive reaction
2. Ultraviolet-visible Spectrophotometers: the maximal absorption in 295nm, 259nm, and 234nm.
3. Infrared Spectrophotometry: exhibit similar intensities of absorption at the same wave numbers with Reference Sprectrum.
4. Reaction of chloride
pH (C: 1% water) 4.0-5.0
Mp 193~198℃
Clarity of solution According to CP test
Related substances (By HPLC) Comply with the Reference Standard. (Total impurities is not more than 0.5%)
Moisture by K. Pischer Between 2.5£¥ and 3.3£¥
Residue on ignition Not more than 0.1%
Heavy metals Not more than 10ppm
Arsenic Not more than 0.0002%
Assay Not less than 98.5£¥,calculated with reference to the dried substances.
6. Usage: It is used into preventing asthma, anti inflammation, anti-irritability, and mainly applied in clinic for bronchial asthma, bronchitis and chronic choking pulmonary diseases and acute bronchitis
7. Storage: It should be kept away from light, stored in sealed containers.
8. Packing: 50 g/package.
9. HS CODE: 2914 5000
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| Company: |
Shaanxi Dasheng Pharmaceutical Tech Co., Ltd.
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| Contact: |
Ms. Beatrice Shi |
| Address: |
9F of Jiezuo Square, No.2 South Fenghui Rd., Hi-tech Industrial Developing Zone |
| Postcode: |
710075 |
| Tel: |
86-29-88193552 |
| Fax: |
86-29-88193353 |
| E-mail: |
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