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| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| N3H3O4 | 0.896(17) | 1.901(17) | 2.7024(13) | 147.9(15) |
| C312H312O3 | 0.95 | 2.26 | 2.8714(15) | 122 |
| C2H2O4i | 0.95 | 2.45 | 3.1645(14) | 132 |
| C316H316O3ii | 0.95 | 2.46 | 3.3160(14) | 149 |
Symmetry codes: (i) 
; (ii) 
.
