Br-PEG4-C2-Boc Catalog No.:M13089-10 C[C@]12C[C@@H](O)[C@H]3[C@@H](CC[C@]4(O)C[C@H](C[C@@H](O)[C@@]43CO)O[C@@H]3O[C@@H](C)[C@H](O)[C@@H](O)[C@H]3O)[C@@]1(O)CC[C@@H]2C1COC(=O)C=1
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