CEL-003

[1'-13C]cellobiose(β-D-[1-13C]Glcp-(1→4)-D-Glc)

4-O-beta-D-[1-13C]glucopyranosyl-D-glucose;
  cellobiose-1'-13C ([1-13C]glucose at non-reducing end);
  beta-D-[1-13C]glucopyranosyl-(1-4)-D-glucose

CAS:528-50-7 (unlabeled)

CEL-002

[UL-13C12]cellobiose(β-D-[UL-13C6]Glcp-(1→4)-D-[UL-13C6]Glc)

4-O-beta-D-[UL-13C6]glucopyranosyl-D-[UL-13C6]glucose;
  cellobiose-U-13C12;
  beta-D-[1-13C]glucopyranosyl-(1-4)-D-[1-13C]glucose

CAS:528-50-7 (unlabeled)