Table 2.

Yield, acid number (n) and carboxylic group substitution degree of the carboxylated dextran derivatives 6 and 9 and conjugation degrees of TSPO ligand conjugates 7, 8, 10 and 11.

Compound	Yield %	pH Analysis	UV Analysis			1H-NMR Analysis		Elemental Analysis	SEC Analysis
		n	E1% c	λmax (nm)	TSPO Ligand Conjugation Degree	Carboxylic Group Substitution Degree	Residual Free Carboxylic Groups	TSPO Ligand Conjugation Degree	TSPO Ligand Conjugation Degree
	(w/w) a	(mg/g) b			(g/g) e	(mol/mol) f		(g/g) e	(mol/mol) g
1			62.8 d	253
4			76.5 d	254
6	82	55.7				0.51
7	68		23.2	250	0.37		0.23	0.31	0.28
8	51		25.2	254	0.33		0.26	0.28	0.25
9	80	54.2				0.55
10	71		36.4	251	0.58		0.18	0.55	0.37
11	54		43.6	254	0.57		0.20	0.52	0.35

^a Based on the percentage by weight of the polymer synthesized and the starting dextran; ^b calculated as mg of NaOH per g of polymer; ^c determined by UV analysis in H₂O at wavelength 254 nm; ^d determined by UV analysis in MeOH:H₂O, at a ratio of 2:1, at a wavelength of 254 nm; ^e calculated as g of TSPO ligand/g of polymer; ^f calculated as number of moles of carboxylic groups of C-Dex per mole of glucose; ^g calculated with Equation (1).