Table 1. ¹H and ¹³C NMR chemical shifts (δ, ppm) of S. flexneri O-polysaccharides.

Residue	Monosaccharide						EtN/NAc
	C1	C2	C3	C4	C5	C6	C1	C2
	H1	H2	H3	H4	H5	H6(6a,6b)	H1	H2
Serotype X
→2,3)-α-L-Rhap III-(1→	102.2	75.6	74.9	72.1	70.7	18.0
	5.10	4.43	3.94	3.35	3.72	1.24
→2)-α-L-Rhap II-(1→	101.9	79.6	71.1	73.3	70.4	17.9
	5.17	4.07	3.92	3.48	3.74	1.31
→3)-α-L-Rhap I-(1→	102.2	71.8	78.4	72.9	70.2	17.6
	4.85	3.84	3.78	3.53	4.02	1.23
→3)-β-D-GlcpNAc-(1→	102.5	56.7	82.8	69.5	77.3	62.0	175.2	23.8
	4.82	3.85	3.49	3.51	3.43	3.74,3.90		2.10
α-D-Glcp-(1→	95.7	72.6	74.4	70.7	72.7	61.5
	5.18	3.72	3.83	3.49	4.04	3.78,3.82
Serotype Xv
→2,3)-α-L-Rhap III-(1→	101.8	75.4	75.0	72.2	70.7	18.0
	5.17	4.42	3.95	3.35	3.70	1.25
→2)-α-L-Rhap3PEtNII-(1→	101.9	77.5	76.5	72.3	70.5	17.9	63.2	41.4
	5.15	4.27	4.35	3.60	3.80	1.33	3.29	4.15
→3)-α-L-Rhap I-(1→	102.4	71.9	78.6	73.0	70.2	17.6
	4.86	3.86	3.79	3.55	4.01	1.23
→3)-β-D-GlcpNAc-(1→	102.7	56.8	82.9	69.7	77.4	62.0	175.2	23.8
	4.82	3.84	3.48	3.49	3.42	3.73,3.92		2.10
α-D-Glcp-(1→	95.8	72.6	74.4	70.7	72.6	61.6
	5.19	3.72	3.83	3.49	4.04	3.78,3.81