k-Carrageenan

Kappa-Carrageenan is a gelling sulfated galactan extracted from red seaweed (typically Mastocarpus stellata and Chondrus crispus). The structure of all carrageenans consists of a strictly alternating masked repeating unit of 1,3-linked α-D-galactose and 1,4-linked β-D-galactose. The α-linked galactose occurs as α-3-6-anhydro unit and the β-linked sugar occurs as the 4-sulfate.||Synonyms:|Vegetable gelatin Type 3; Irish Moss Type 3; Satiagel GS 350||CAS No:|11114-20-8||Molecular Formula:|(C12H17O12S)n||Molecular Weight:|NA||Appearance:|White to off-white to light brown powder||Purity:|As reported||Loss on Drying:|≤12%||Solubility:|Water (Hot): 50mg/10ml||Storage and Stability:|May be stored at RT for short-term only. Long-term storage is recommended at 4°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap.