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| 64359-81-5 | 4,5-Dichloro-N-octylisothiazolin-3-one | Shandong Yubin Chemical CO.,LTD |
| 64359-81-5 | 4,5-Dichloro-2-n-octylisothiazolin-3-one | Shandong Yubin Chemical CO.,LTD |
| 64359-81-5 | 4,5-Dichloro-2-octyl-4-isothiazolin-3-one | Shandong Yubin Chemical CO.,LTD |
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| 104-81-4 | 4-Methylbenzyl bromide | HUAJING INDUSTRIAL LIMITED |
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| 6313-88-8 | 4'-Dodecylacetophenone | HUAJING INDUSTRIAL LIMITED |
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| 4433-79-8 | 4'-Chloro-2',5'-dimethoxyacetoacetanilide | HANGZHOU TIANYE CHEMICALS CO., LTD. |
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| 1126-81-4 | 4-Acetamidothiophenol | COLORCOM LTD. |
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| 80-08-0 | 4,4'-Diaminodiphenylsulfone | Huaihua Yuanyanda Biotechnology Co., Ltd |
| 162012-67-1 | 4-Quinazolinamine, N-(3-chloro-4-fluorophenyl)-7-fluoro-6-nitro- | HUAJING INDUSTRIAL LIMITED |
| 19254-30-9 | 4H-1-Benzopyran-4-one, 2-(3-(beta-D-glucopyranosyloxy)-4-hydroxyphenyl)-3,5,7-trihydroxy- | LIDE PHARMACEUTICALS LIMITED |
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| 10254-57-6 | 4,4'-Methylene bis(dibutyldithiocarbamate) | Shenzhen Hongqingtai petroleum&Additives Co.,Ltd. |
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| 1532-97-4 | 4-Bromoisoquinoline | COLORCOM LTD. |
| 607-67-0 | 4-Hydroxy-2-methylquinoline | COLORCOM LTD. |
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| 873-76-7 | 4-Chlorobenzyl alcohol | COLORCOM LTD. |
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| 2986396-82-9 | [4-(3,6-dibromocarbazol-9-yl)butyl]phosphonic acid diethyl ester | Zibo Yurui Biotechnology Co., Ltd |
| 2226224-90-2 | 4,4'-(2,5-pyridinediyl)bis-Benzaldehyde | Zibo Yurui Biotechnology Co., Ltd |
| 1569900-71-5 | 4,4'',4'''',4''''''-(Pyrene-1,3,6,8-tetrayltetrakis(ethyne-2,1-diyl))tetrabenzoic acid | Zibo Yurui Biotechnology Co., Ltd |
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| 350-46-9 | 4-Fluoronitrobenzene | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 156-83-2 | 4-Chloro-2,6-diaminopyrimidine | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 2396-68-1 | 4-tert-Butylthiophenol | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 152628-03-0 | 4-Methyl-2-propyl-6-benzimidazolecarboxylicacid | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 45019-28-1 | 4-METHYLNONANOIC ACID | COLORCOM LTD. |
| 1353224-53-9 | 4-(4-(cyclopentyloxy)quinolin-2-yl)benzene-1,2-diol 1353224-53-9 | Hebei Zhaohe Chemical Technology Co., Ltd. |
| 624-31-7 | 4-Iodotoluene | COLORCOM LTD. |