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| Position of sulphation | ||||||||
| 13C | 7 (1, 4, 7) | 3' (1) | 1H | 7 (1, 4, 7) | 3' (1) | ||||
| Ipso | −4.4 to −4.7 | (C-7) | −4.5 | (C-3') | Ipso |
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| Orto | +3.4 to +3.6 | (C-6) | +7.1 | (C-2') | Orto | +0.3 to +0.4 | (H-6) | +0.5 | (H-2') |
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| +3.6 to +3.9 | (C-8) | +4.0 | (C-4') |
| +0.5 to +0.6 | (H-8) | - |
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| Meta | −1.0 to −2.2 | (C-5) | −0.7 | (C-1') | Meta |
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| +0.1 | (H-5') |
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| −0.8 to −1.1 | (C-9) | +0.6 | (C-5') |
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| Para | +1.9 to +2.1 | (C-10) | +4.3 | (C-6') | Para |
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| +0.3 | (H-6') |