Dihydro  [  x - z  ]	Nummer
Dihydroxy-aceton	16 / 18
1,8-Dihydroxy-9-(10H)-anthracenon	16 / 18 / # 87 Anti
1,4-Dihydroxy-anthrachinon	16
1,8-Dihydroxy-anthrachinon	16 / 13 / 18
2,6-Dihydroxy-anthrachinon	16 / 13
4,5-Dihydroxy-anthrachinon-2-carbonsäure
2,4-Dihydroxy-azobenzol	3 / 16
2,3-  /  2,4-  /  2,5-  /  3,4-    Dihydroxy-benzaldehyd	16
2,3-  /  2,4-  /  2,5-  /  3,5-    Dihydroxy-benzoesäure
1,2-Dihydroxy-benzol	16 / 18 / # 21 Haut
1,3-Dihydroxy-benzol	16 / 18
1,4-Dihydroxy-benzol	16 / 13 / 18 / 19 / # (19a-c) / # 6 Augen / # 21 Haut
2,2-Dihydroxy-biphenyl	16
4,4-Dihydroxy-biphenyl
4,5-Dihydroxy-1,3- bis-(hydroxy-methyl)-2-imidazol-idinon	16 / 18
3β,14-Dihydroxy-bufa-4,20,22-tri-enolid	14 / 14a
3-β,14-β-Dihydroxy-5-β-carden-20-(22)-olid-3-tri-digitoxid	14 / # 84 Antitoxin
6,7-Dihydroxy-cumarin	3a / 16 / selten 18
7,8-Dihydroxy-cumarin	14 / selten 18
6,7-Dihydroxy-cumarin-6-glycosid	3a / 16
2,6-Dihydroxy-3,4-dimethyl-pyridin	18
1,5-Dihydroxy-4,8-di-nitro-anthrachinon	16 / 13
Dihydroxy-essigsäure	2 / 18 / # 6 Augen
N,N-Di(2-hydroxy-ethyl)-anilin	16 / 13
Dihydroxy-fumarsäure	16
Dihydroxy-fumarsäure-Dihydrat
2,2-Dihydroxy-1,3-indandion	14 / 18
5,6-Dihydroxy-indol	16 / # 6 Augen
D L -3,4-Dihydroxy-mandelsäure	16
2,4-Dihydroxy-3- methyl-benzaldehyd	18
2,4-Dihydroxy-N-(2-methoxy-phenyl)-benzamid	16 / 18
1,8-Dihydroxy-3-methyl-anthrachinon	16 / 13
5,7-Dihydroxy-4-methyl-cumarin	3a / 16 / 18
6,7-Dihydroxy-4-methyl-cumarin	16
7,8-Dihydroxy-4-methyl-cumarin	3a / selten 18
5,7-Dihydroxy-8-methyl-flavanon	16
Dihydroxy-naphthalin	9 / 16 / 19 / # 6 Augen
1,7-Dihydroxy-napthalin-3-sulfonsäure Natriumsalz	xxx
1,2-Dihydroxy-4-nitrobenzol	16 / 13
D L - 3-(3,4-Dihydroxy-phenyl)-alanin	16
Isomerengemisch-Eisenkomplexen(1:2) :  1,3-Dihydroxy-4- [(5-phenylamino-sulfonyl)-2-hydroxy-phenylazo]-2-(o.5 o.6) (5-amino-sulfonyl-2-hydroxy-phenylazo)–benzol    U N D 1,3-Dihydroxy-4-[(5-phenyl-amino-sulfonyl)-2-hydroxy- phenylazo]-2-(oder 5 o.6)-[4-(4-nitro-2-sulfophenyl-amino) phenylazo]-benzol und deren Salze	16 / 18
β-(3,4-Dihydroxy-phenyl)-α-methyl-DL-alanin	16 / 18
1-(2,5-Dihydroxy-phenyl)-3,7,11-tri-methyl-2,6,10-dode- catrien-1-on	18 / # 147 Kontakt
α,ω-Dihydroxy-poly-hex-5-en-1-yl-methyl-siloxan	16
4-[4-(1,3-Dihydroxy-prop-2-yl)-phenylamino]1,8-di-hydroxy- 5-nitro-anthrachinon	16 / 18 / # (19a)
3,6-Dihydroxy-pyridazin	16
2,3-  /  2,4-    Dihydroxy-pyridin
3,5-Dihydroxy-sorbinsäure-δ-lacton
9,10-Dihydroxy-stearinsäure, Ammoniumsalz
2,6-Dihydroxy-toluol	14
3,5-Dihydroxy-toluol	16
3,5–Dihydroxy-toluol-Monohydrat
3,4-Dihydroxy-zimtsäure	14