正宗铁皮石斛枫斗铁皮石斛精选石斛颗粒100g500g可代磨粉全国包邮

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厂家直销NLZD焊锡丝63%含铅37%松香芯锡丝50g100g500g1000g焊锡线

50G75G100G500G美国原装进口RO膜

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展艺原汁椰蓉椰丝100%海南椰子肉

2,3-二溴-1-丙烯513-31-5纯度≥90.0%25g100g500g

肼基甲酸叔丁酯870-46-2纯度98%100g500g直销

牛胆粉|猪胆粉8008-63-745%100g500g

全氟三丙胺/卜氟胺338-83-0纯度≥98.0%100g500g

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溴化镍(II)三水合物7789-49-3纯度98%100g500g2.5kg

3-溴苯甲醛3132-99-8纯度≥98.0%100g500g

M1钢镀铬砝码1g100g500g250g20g1公斤2kg电子称天平称校准配重

透明紫B81-48-1分析纯AR100g500g

5-疏基-1-苯基-四氮唑86-93-1纯度98%100g500g/瓶直发

草酸铌铵168547-43-1有效物质含量:≥19.0%100g500g科研实

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对羟基联苯醚1965-09-9纯度≥98.0%25g100g500g

N-Cbz-L-丙氨酸1142-20-7纯度≥99.0%100g500g

1,10-菲罗啉66-71-7分析纯AR98%25g100g500g

全氟己基磺酰氟cas423-50-7分析纯AR93%25g100g500g

亚硝基红盐525-05-3分析纯AR99.0%25g100g500g

香草壬酰胺/辣椒素2444-46-4纯度97%25g100g500g

2-对溴苯氧基四氢吡喃36603-49-3纯度≥98.0%25g100g500g

5-溴-2-甲氧基苯甲醛25016-01-7纯度98%100g500g

乙烯丙烯共聚物CAS9010-79-1纯度AR100g500g

N-Cbz-L-丙氨酸1142-20-7纯度≥99.0%100g500g

异辛酸锆CAS22464-99-9纯度15%100g500g

2,7-二羟基萘582-17-2纯度≥98.0%100g500g

2-叔丁基蒽醌84-47-9纯度≥98.0%25g100g500g

现货：醋酸钆100587-93-74N100g500g直销

1,1-二苯基乙烯530-48-3纯度≥98.0%25g100g500g

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11-溴十一醇1611-56-9纯度98%25g100g500g

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分散红11、溶剂紫26CAS2872-48-2分析纯AR100g500g

2,7-二羟基萘582-17-2纯度≥98.0%100g500g

红丝菌素114-07-8纯度98%25g100g500g直销

几丁质酶9001-06-3酶活力10万100g500g

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天青A531-53-3BS25g100g500g方信生物

4,4′-联苯醚二酐1823-59-2纯度≥99.0%25g100g500g

玻璃纤维CAS65997-17-3纯度AR100g500g

4-肼基苯磺酸CAS98-71-595%25g100g500g

果胶酶9032-75-1纯度齐全10g50ml50g100g500g

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17Β-雌二醇50-28-2纯度98%5g25g100g500g

5-氟水杨醛347-54-6纯度98%25g100g500g

1,1'-二苯甲酰基二茂铁12180-80-2纯度≥98%5g25g100g500g

3-苯氧基苄醇13826-35-2纯度98%100g500g/瓶直发

L-岩藻糖2438-80-4纯度≥98.0%100g500g

磷酸铁锂CAS15365-14-7分析纯AR98%25g100g500g

三苯基锑(III)603-36-1纯度98%100g500g

异辛酸铋CAS67874-71-9纯度AR铋含量25%100g500g

4-溴苯基乙腈16532-79-9纯度≥99.0%100g500g

乙胺嘧啶58-14-0纯度98%100g500g/瓶直发

2-羧乙基三苯基溴化磷51114-94-4纯度≥98.0%25g100g500g

植醇150-86-7叶绿醇纯度95%25g100g500g

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薯蓣皂素512-04-9纯度98%25g100g500g直销

烟酸乙酯CAS614-18-6AR98%100g500g

2,3,4-三氟苯甲酸61079-72-9纯度≥98.0%100g500g

聚季铵盐-32CAS35429-19-7纯度98%100g500g

2,6-二氟苯甲酸385-00-2纯度≥98.0%100g500g

磷酸二氢钡13466-20-1分析纯AR99.0%100g500g

4,4′-双(2-苯并噁唑基)二苯乙烯1533-45-5纯度≥98%100g500g

N,N'-二丁基硫脲CAS109-46-6纯度98%100g500g

4-溴-3-硝基甲苯5326-34-1纯度96%25g100g500g/瓶

米屈肼二水合物86426-17-7纯度98%100g500g

3-吡啶磺酸636-73-7纯度≥98.0%25g100g500g

2-羟基喹喔啉1196-57-2纯度≥98.0%100g500g

2,3-二溴丙酸600-05-5纯度≥98.0%100g500g

(±)-1,2,4-丁三醇3068-00-6纯度98%25g100g500g分析纯

苯基膦酸CAS1571-33-1纯度98%100g500g

溴氨酸116-81-4纯度≥98.0%25g100g500g

石墨相氮化碳143334-20-7分析纯AR10g100g500g

对甲氧基苯乙腈104-47-2纯度≥99.0%100g500g