D-葡萄糖醛酸及N-乙酰葡糖胺组成的双糖单位玻尿酸(Hyaluronan),又称糖醛酸、透明质酸,基本结构是由两个双糖单位D-葡萄糖醛酸及N-乙酰葡糖胺组成的大型多糖类。与其它粘多糖不同,它不含硫。它的透明质分子能携带500倍以上的水分,为当今所公认的保湿成分,广泛的应用在保养品跟化妆品中。
透明质酸是一种多功能基质,透明质酸HA广泛分布于人体各部位。其中皮肤也含有大量的透明质酸。人类皮肤成熟和老化过程也随着透明质酸的含量和新陈代谢而变化,它可以改善皮肤营养代谢,使皮肤柔嫩、光滑、去皱、增加弹性、防止衰老,在保湿的同时又是良好的透皮吸收促进剂。与其他营养成分配合使用,可以起到促进营养吸收的更理想效果。
透明质酸CAS号:9004-61-9
透明质酸分子式: C28H44N2O23
透明质酸英文名称: hyaluronic acid
透明质酸英文同义词: hyaluronan; HA; beta-D-glucopyranuronosyl-(1->3)-(3xi)-2-(acetylamino)-2-deoxy-beta-D-ribo-hexopyranosyl-(1->4)-beta-D-glucopyranuronosyl-(1->3)-(3xi)-2-(acetylamino)-2-deoxy-beta-D-ribo-hexopyranose; beta-D-glucopyranose, O-beta-D-glucopyranuronosyl-(1->3)-O-2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1->4)-O-beta-D-glucopyranuronosyl-(1->3)-2-(acetylamino)-2-deoxy-, monosodium salt; sodium (2S,3S,4R,5R,6R)-3-{[(2S,3R,5S,6R)-3-(acetylamino)-5-hydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy}-4,5,6-trihydroxytetrahydro-2H-pyran-2-carboxylate (non-preferred name); (3S,4R,5R,6R)-3-[(2S,3R,5S,6R)-3-acetamido-4-[(2S,3R,4S,6S)-6-carboxy-3,4,5-trihydroxy-tetrahydropyran-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]oxy-6-[(3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)tetrahydropyran-4-yl]oxy-4,5-dihydroxy-tetrahydropyran-2-carboxylic acid
透明质酸EINECS号: 232-678-0
透明质酸分子量: 776.6486
透明质酸沸点: 1274.4°C at 760 mmHg
透明质酸密度: 0mmHg at 25°C
透明质酸闪点: 724.5°C