2-乙酰氨基-2-脱氧-alpha-D-吡喃半乳糖基-(1->3)-[6-脱氧-alpha-L-吡喃半乳糖基-(1->2)]-beta-D-吡喃半乳糖基-(1->3)-[6-脱氧-alpha-L-吡喃半乳糖基-(1->4)]-2-乙酰氨基-2-脱氧-beta-D-吡喃葡萄糖基-(1->3)-beta-D-吡喃半乳糖基-(1->4)-D-吡喃葡萄糖
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