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Linear hetero single molecule PEGs

X = 8 Molecular weight: 441.51

X=12 Molecular weight: 617.72

X=8  Molecular weight: 541.63 *make to order

X=8  Molecular weight: 717.84 *make to order

X=8  Molecular weight: 592.63 *make to order


X=8  Molecular weight: 689.71 *make to order


X=12  Molecular weight: 768.84 *make to order

X=12  Molecular weight: 865.92 *make to order