Betamethasone Acetate EP Impurity C (Betamethasone Acetate USP Related Compound C, Betamethasone 11,21-Diacetate)（en-17） Betamethasone Acetate EP Impurity C (Betamethasone Acetate USP Related Compound C, Betamethasone 11,21-Diacetate)
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Betamethasone Acetate EP Impurity D (Betamethasone Acetate USP Related Compound D)（en-7） Betamethasone Acetate EP Impurity D (Betamethasone Acetate USP Related Compound D)
B-065061 | 100mg
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Betamethasone Dipropionate EP Impurity C (Betamethasone Dipropionate USP Related Compound C, Clobetasol Propionate EP Impurity K, Betamethasone 21-Propionate)（en-17） Betamethasone Dipropionate EP Impurity C (Betamethasone Dipropionate USP Related Compound C, Clobetasol Propionate EP Impurity K, Betamethasone 21-Propionate)
B-065004 | 100mg
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Betamethasone Valerate EP Impurity E (Betamethasone Valerate USP Related Compound A, Betamethasone 21-Valerate)（en-17） Betamethasone Valerate EP Impurity E (Betamethasone Valerate USP Related Compound A, Betamethasone 21-Valerate)
B-065012 | 100mg
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Betamethasone Dipropionate EP Impurity B (Betamethasone Dipropionate USP Related Compound B, Clobetasol Propionate EP Impurity A, Betamethasone 17-Propionate)（en-17） Betamethasone Dipropionate EP Impurity B (Betamethasone Dipropionate USP Related Compound B, Clobetasol Propionate EP Impurity A, Betamethasone 17-Propionate)
B-065003 | 100mg
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Betamethasone EP Impurity C（en-3） Betamethasone EP Impurity C
B-065015 | 100mg
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Betamethasone Valerate EP Impurity C（en-17） Betamethasone Valerate EP Impurity C
B-065027 | 100mg
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Betamethasone Dipropionate EP Impurity D (Betamethasone 21-Acetate 17-Propionate)（en-17） Betamethasone Dipropionate EP Impurity D (Betamethasone 21-Acetate 17-Propionate)
B-065002 | 100mg
化合物名称：Betamethasone Acetate EP Impurity C (Betamethasone Acetate USP Related Compound C, Betamethasone 11,21-Diacetate)
同义词：2-((8S,9R,10S,11S,13S,14S,16S,17R)-11-acetoxy-9-fluoro-17-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate
CAS 号：330157-05-6
其他 CAS 号：
分子式：C26H33FO7
分子量：/
结构式图片：
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2. 对照品溶液：杂质C单独配制，浓度需覆盖定量限至报告限；
3. 供试品溶液：按限度要求稀释，避免溶剂干扰。
2. 系统适用性测试：理论塔板数≥2000，分离度≥1.5；
3. 样品分析：供试品与对照品分别进样，按面积归一化法或外标法计算含量。
2. 实验过程中需避免高温及强光照射，防止降解；
3. 方法验证需包含专属性、精密度及准确度，数据应符合ICH Q2要求。
以上信息仅供参考，请以相应标准的原文为准！