polysaccharide particles , i.e . dextran 75 ( mol wt approximately 75,000 ; diam approximately 125 a ) , dextran 250 ( mol wt 250,000 ; diam approximately 225 a ) , shellfish glycogen ( diam approximately 200 a ) and rabbit liver glycogen ( diam approximately 300 a ) , are well tolerated by wistar-furth rats and give no vascular reactions ascribable to histamine release .
C0017911
glycogen
C0023902
liver glycogen