is a white powder with a melting point of {{0}} degree , a boiling point of 528.0±50.0 degree (Predicted), a density of 1.39±0.1 g/cm3 (Predicted), and is soluble in DMSO to 25mM. Solutions in DMSO can be stored at -20 degree for up to 3 months.
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A HPLC method for the determination of flumazenil was established. Methods: An ODS reverse phase column was used, the mobile phase was methanol-water (50∶50), the flow rate was 1.0 mL·min-1, vanillin was used as the internal standard, and the detection was performed by an ultraviolet detector (λ=243 nm). Results: The linear relationship was good in the range of 80-400 ng (r=0.999 9), and the average recovery was 98.6%. Conclusion: The RP-HPLC method is simple, rapid, accurate, and suitable for the determination of flumazenil.
Flumazenil was synthesized by a new route: under standard conditions of nucleophilic fluorination, 19F isotope exchange was carried out with the complex [K/K2.2.2]+18F-. The synthesis conditions were: solvent dimethyl sulfoxide, reaction time 5 min, temperature 130 degree , flumazenil sample weight 2 mg, molar ratio of potassium to water 1:1, reaction time 1 h, and fluorination efficiency of 628% (n=8).
| 98% | 99.38% | |
| NLT 100% Through 80 mesh | ||
| <2.0% | 0.56% | |
| Less than or equal to 10ppm | ||
| Less than or equal to 3ppm | ||
| Less than or equal to 3ppm | ||
| Less than or equal to 1000cfu/g | ||
| Less than or equal to 100cfu/g | ||
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We have confidence in the quality of our products, but if there are any after-sales problems, we will respond as soon as possible and solve them with you in the best way.
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3-7 days |
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Suitable for under 50kg. |
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7-15 days |
Suitable for more than 50kg. |
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15-60 days |
Suitable for more than 500kg. |
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