D-Pentamannuronic acid

• CAT Number: I044868
• CAS Number: 183668-50-0
• Molecular Formula: C30H42O31
• Molecular Weight: 898.64
• Purity: ≥95%
• Synonyms: (2S,3S,4S,5S,6R)-6-[(2S,3S,4R,5S,6R)-2-carboxy-6-[(2S,3S,4R,5S,6R)-2-carboxy-6-[(2S,3S,4R,5S,6R)-2-carboxy-6-[(2S,3S,4R,5S,6R)-2-carboxy-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid
• InChI: InChI=1S/C30H42O31/c31-1-2(32)16(21(42)43)58-27(8(1)38)55-13-4(34)10(40)29(60-18(13)23(46)47)57-15-6(36)11(41)30(61-20(15)25(50)51)56-14-5(35)9(39)28(59-19(14)24(48)49)54-12-3(33)7(37)26(52)53-17(12)22(44)45/h1-20,26-41,52H,(H,42,43)(H,44,45)(H,46,47)(H,48,49)(H,50,51)/t1-,2-,3+,4+,5+,6+,7-,8-,9-,10-,11-,12-,13-,14-,15-,16-,17-,18-,19-,20-,26+,27+,28+,29+,30+/m0/s1
• InChIKey: XTVQVZDWFHITEQ-YLWRECDYSA-N
• SMILES: [C@@H]1([C@@H]([C@H](O[C@H]([C@H]1O)O[C@H]2[C@@H]([C@@H]([C@@H](O[C@@H]2C(=O)O)O[C@H]3[C@@H]([C@@H]([C@@H](O[C@@H]3C(=O)O)O[C@H]4[C@@H]([C@@H]([C@@H](O[C@@H]4C(=O)O)O[C@H]5[C@@H]([C@@H]([C@@H](O[C@@H]5C(=O)O)O)O)O)O)O)O)O)O)O)C(=O)O)O)O

D-Pentamannuronic acid（Cat No.:I044868）is a linear oligosaccharide composed of five D-mannuronic acid residues connected via 1→4 glycosidic bonds. It is a subunit of alginate, a naturally occurring polysaccharide found in brown algae. Unlike guluronic-rich sequences, pentamannuronic acid regions confer flexibility and solubility to alginate chains. These regions form weaker gels compared to guluronic acid blocks, making them important for tuning the mechanical properties of alginate-based biomaterials. D-Pentamannuronic acid is studied for its role in modulating ion binding, viscosity, and biodegradability in drug delivery systems, wound dressings, and tissue engineering scaffolds.