Hydrogen + Oxygen Compounds

Formula	IUPAC Name	Common Name	Mol. Weight
C8H16N2O	2-amino-4-methoxy-2,4-dimethyl-pentanenitrile	Pentanenitrile, 2-amino-4-methoxy-2,4-dimethyl-	156.23
C6H19O4PPb	phosphoric acid;triethylplumbane	phosphoric acid;triethylplumbane	393.00
C9H12O	nona-2,4,6-trienal	NONA-2,4,6-TRIENAL	136.19
C6H15NO6P2	(2-phosphonoazepan-2-yl)phosphonic acid	56269-44-4	259.13
C9H12O5	(1-acetoxy-3-methyl-4-oxo-but-2-enyl) acetate	2-Butenal, 4,4-bis(acetyloxy)-2-methyl-, (Z)-	200.19
C15H15N3O7S	7-[[2-(2-furyl)-2-methoxyimino-acetyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid	(6R,7R)-7-((Z)-2-(furan-2-yl)-2-(methoxyimino)acetamido)-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid	381.40
C10H16N2O4S3	(4R,6R)-4-(ethylamino)-6-methyl-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide	(4R,6R)-4-(ethylamino)-6-methyl-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide	324.40
C18H21N3O6S	(6R,7R)-7-[[(2R)-2-amino-2-(4-hydroxyphenyl)acetyl]amino]-8-oxo-3-prop-1-enyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid;hydrate	Cefprozil monohydrate	407.40
C16H19N3O4S	6-(2,4-dimethylimidazol-1-yl)-8-methyl-1H-quinolin-2-one;methanesulfonic acid	NANTERINONE MESYLATE	349.40
C22H27ClN2O3	chloromethyl (1R,9R,10S,13S,14R,16S)-13-ethyl-14-hydroxy-8-methyl-8,15-diazahexacyclo[14.2.1.01,9.02,7.010,15.012,17]nonadeca-2,4,6-triene-18-carboxylate	SCHEMBL1649709	402.90
C10H13N4O7PS	[(2R,3S,4R,5R)-3,4-dihydroxy-5-(6-sulfanylpurin-9-yl)tetrahydrofuran-2-yl]methyl dihydrogen phosphate	[(2R,3S,4R,5R)-3,4-dihydroxy-5-(6-sulfanylpurin-9-yl)tetrahydrofuran-2-yl]methyl dihydrogen phosphate	364.27
C6H12O6	(3S,4S,5R)-1,3,4,5,6-pentahydroxyhexan-2-one	(3S,4S,5R)-1,3,4,5,6-pentahydroxyhexan-2-one	180.16
C27H46O2	(2R)-2,8-dimethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]chroman-6-ol	delta-Tocopherol	402.70
C27H44O3	(1R,2S,4S,5'S,6R,7S,8R,9S,12S,13S,16S,18R)-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-tetrahydropyran]-16-ol	Sarsasapogenin	416.60
C40H56O4	(1R,3S,6S)-6-[18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyl-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol	(1R,3S,6S)-6-[18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyl-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol	600.90
C30H50O	(3S,4aR,6aR,6aS,8aR,12aR,14aR,14bR)-4,4,6a,6a,8a,11,11,14b-octamethyl-1,2,3,4a,5,6,8,9,10,12,12a,13,14,14a-tetradecahydropicen-3-ol	Taraxerol	426.70
C10H10O	2-phenylbut-3-yn-2-ol	2-Phenyl-3-butyn-2-ol	146.19
C11H12Cl2N2O5	2,2-dichloro-N-[(1S,2S)-2-hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)ethyl]acetamide	Dextramycine	323.13
C9H10FNO3	2-amino-3-(3-fluoro-4-hydroxy-phenyl)propanoic acid	3-Fluoro-DL-tyrosine	199.18
C25H26O13	1-hydroxy-2-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-[[(2S,3R,4S,5R)-3,4,5-trihydroxytetrahydropyran-2-yl]oxymethyl]tetrahydropyran-2-yl]oxy-anthracene-9,10-dione	Ruberythric acid	534.50
C7H14O5S	(3R,5R,6S)-2-(hydroxymethyl)-6-methylsulfanyl-tetrahydropyran-3,4,5-triol	Methylthiogalactoside	210.25
C33H40O19	4-hydroxy-2-(4-hydroxyphenyl)-7-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl]oxy-3-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-[[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl]oxymethyl]tetrahydropyran-2-yl]oxy-chromen-5-one	4-hydroxy-2-(4-hydroxyphenyl)-7-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl]oxy-3-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-[[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl]oxymethyl]tetrahydropyran-2-yl]oxy-chromen-5-one	740.70
C7H11N3O2	(2S)-2-amino-3-(1-methylimidazol-4-yl)propanoic acid	1-Methyl-L-histidine	169.18
C21H30O2	methyl 3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenoate	11-cis Retinoic Acid Methyl Ester	314.50
C3H6ClFO	1-chloro-3-fluoro-propan-2-ol	1-Chloro-3-fluoro-2-propanol	112.53
C19H24O5	(1R,2R,5R,8R,9S,10R,11S,12S)-12-hydroxy-11-methyl-6-methylene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylic acid	Gibberellin A4	332.40
C30H50O	(1S,3R,6S,8R,11S,12S,15R,16R)-15-[(1R)-1,5-dimethylhex-4-enyl]-7,7,12,16-tetramethyl-pentacyclo[9.7.0.01,3.03,8.012,16]octadecan-6-ol	Cycloartenol	426.70
C40H56O	(1R)-3,5,5-trimethyl-4-[3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol	(1R)-3,5,5-trimethyl-4-[3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol	552.90
C19H22N2O	(15R,19R)-15-ethyl-1,11-diazapentacyclo[9.6.2.02,7.08,18.015,19]nonadeca-2,4,6,8(18)-tetraen-17-one	eburnamonine	294.40
C28H46O	(3S,8S,9S,10R,13R,14S,17R)-17-[(1R)-1,5-dimethyl-4-methylene-hexyl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol	24-Methylenecholesterol	398.70
C24H27NO4	(13aS)-2,3,6,7-tetramethoxy-9,11,12,13,13a,14-hexahydrophenanthro[9,10-f]indolizine	Tylophorine	393.50
C11H14O2	4-hydroxy-3-methyl-2-penta-2,4-dienyl-cyclopent-2-en-1-one	SCHEMBL7526564	178.23
C4H9NO5S	2-amino-4-sulfo-butanoic acid	Homocysteic acid	183.19
C25H41NO7	11-ethyl-4,6,18-trimethoxy-13-(methoxymethyl)-11-azahexacyclo[7.7.2.12,5.01,10.03,8.013,17]nonadecane-8,9,16-triol	11-ethyl-4,6,18-trimethoxy-13-(methoxymethyl)-11-azahexacyclo[7.7.2.12,5.01,10.03,8.013,17]nonadecane-8,9,16-triol	467.60
C15H18O3	(3aS,6S,6aR,9aR,9bR)-6,9a-dimethyl-3-methylene-3a,4,5,6,6a,9b-hexahydroazuleno[8,7-b]furan-2,9-dione	Ambrosin	246.30
C24H32O5	(1S,4R,5R,9R,10R,12R,13R,17R)-19-isopropyl-5,9-dimethyl-14,16-dioxo-15-oxapentacyclo[10.5.2.01,10.04,9.013,17]nonadec-18-ene-5-carboxylic acid	Maleopimaric acid	400.50
C19H26O3	(9S,14S)-10-(hydroxymethyl)-13-methyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17-dione	(9S,14S)-10-(hydroxymethyl)-13-methyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17-dione	302.40
C22H22O8	(5aR,8aR,9R)-4-hydroxy-9-(3,4,5-trimethoxyphenyl)-5a,6,8a,9-tetrahydro-5H-isobenzofuro[5,6-f][1,3]benzodioxol-8-one	beta-Peltatin	414.40
C14H18O7	1-[4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]oxyphenyl]ethanone	Picein	298.29
C6H13NO2S	(2R)-2-amino-4-ethylsulfanyl-butanoic acid	D-Ethionine	163.24
C6H5IO	iodosylbenzene	Iodosobenzene	220.01
C10H10O4	3-(3-hydroxy-4-methoxy-phenyl)prop-2-enoic acid	3-(3-hydroxy-4-methoxyphenyl)prop-2-enoic acid	194.18
C3H7IO2	3-iodopropane-1,2-diol	Glyceryl iodide	201.99
C27H46O	(5S,8R,9S,10S,13R,14S,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one	5alpha-Cholestan-3-one	386.70
C21H20O8	(5aR,8aR,9R)-4-hydroxy-9-(4-hydroxy-3,5-dimethoxy-phenyl)-5a,6,8a,9-tetrahydro-5H-isobenzofuro[5,6-f][1,3]benzodioxol-8-one	alpha-Peltatin	400.40
C20H34O	5-[(1S,4aS,8aS)-5,5,8a-trimethyl-2-methylene-decalin-1-yl]-3-methyl-pent-1-en-3-ol	Labda-8(20),14-dien-13-ol, (13R)-	290.50
C27H46O	(5R,8R,9S,10S,13R,14S,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one	5beta-Cholestan-3-one	386.70
C25H40N7O19P3S	4-[2-[3-[[(2R)-4-[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-3-phosphonooxy-tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl]oxy-hydroxy-phosphoryl]oxy-2-hydroxy-3,3-dimethyl-butanoyl]amino]propanoylamino]ethylsulfanyl]-4-oxo-butanoic acid	succinyl-CoA	867.60
C4H8O3	(3R)-3-hydroxybutanoic acid	625-72-9	104.10
C6H11NO4	(2S)-2-aminohexanedioic acid	L-2-Aminoadipic acid	161.16

C8H16N2O

2-amino-4-methoxy-2,4-dimethyl-pentanenitrile

Pentanenitrile, 2-amino-4-methoxy-2,4-dimethyl-

156.23

C6H19O4PPb

phosphoric acid;triethylplumbane

393.00

C9H12O

nona-2,4,6-trienal

NONA-2,4,6-TRIENAL

136.19

C6H15NO6P2

(2-phosphonoazepan-2-yl)phosphonic acid

56269-44-4

259.13

C9H12O5

(1-acetoxy-3-methyl-4-oxo-but-2-enyl) acetate

2-Butenal, 4,4-bis(acetyloxy)-2-methyl-, (Z)-

200.19

C15H15N3O7S

7-[[2-(2-furyl)-2-methoxyimino-acetyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

(6R,7R)-7-((Z)-2-(furan-2-yl)-2-(methoxyimino)acetamido)-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

381.40

C10H16N2O4S3

(4R,6R)-4-(ethylamino)-6-methyl-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide

324.40

C18H21N3O6S

(6R,7R)-7-[[(2R)-2-amino-2-(4-hydroxyphenyl)acetyl]amino]-8-oxo-3-prop-1-enyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid;hydrate

Cefprozil monohydrate

407.40

C16H19N3O4S

6-(2,4-dimethylimidazol-1-yl)-8-methyl-1H-quinolin-2-one;methanesulfonic acid

NANTERINONE MESYLATE

349.40

C22H27ClN2O3

chloromethyl (1R,9R,10S,13S,14R,16S)-13-ethyl-14-hydroxy-8-methyl-8,15-diazahexacyclo[14.2.1.01,9.02,7.010,15.012,17]nonadeca-2,4,6-triene-18-carboxylate

SCHEMBL1649709

402.90

C10H13N4O7PS

[(2R,3S,4R,5R)-3,4-dihydroxy-5-(6-sulfanylpurin-9-yl)tetrahydrofuran-2-yl]methyl dihydrogen phosphate

364.27

C6H12O6

(3S,4S,5R)-1,3,4,5,6-pentahydroxyhexan-2-one

180.16

C27H46O2

(2R)-2,8-dimethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]chroman-6-ol

delta-Tocopherol

402.70

C27H44O3

(1R,2S,4S,5'S,6R,7S,8R,9S,12S,13S,16S,18R)-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-tetrahydropyran]-16-ol

Sarsasapogenin

416.60

C40H56O4

(1R,3S,6S)-6-[18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyl-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol

600.90

C30H50O

(3S,4aR,6aR,6aS,8aR,12aR,14aR,14bR)-4,4,6a,6a,8a,11,11,14b-octamethyl-1,2,3,4a,5,6,8,9,10,12,12a,13,14,14a-tetradecahydropicen-3-ol

Taraxerol

426.70

C10H10O

2-phenylbut-3-yn-2-ol

2-Phenyl-3-butyn-2-ol

146.19

C11H12Cl2N2O5

2,2-dichloro-N-[(1S,2S)-2-hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)ethyl]acetamide

Dextramycine

323.13

C9H10FNO3

2-amino-3-(3-fluoro-4-hydroxy-phenyl)propanoic acid

3-Fluoro-DL-tyrosine

199.18

C25H26O13

1-hydroxy-2-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-[[(2S,3R,4S,5R)-3,4,5-trihydroxytetrahydropyran-2-yl]oxymethyl]tetrahydropyran-2-yl]oxy-anthracene-9,10-dione

Ruberythric acid

534.50

C7H14O5S

(3R,5R,6S)-2-(hydroxymethyl)-6-methylsulfanyl-tetrahydropyran-3,4,5-triol

Methylthiogalactoside

210.25

C33H40O19

4-hydroxy-2-(4-hydroxyphenyl)-7-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl]oxy-3-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-[[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl]oxymethyl]tetrahydropyran-2-yl]oxy-chromen-5-one

740.70

C7H11N3O2

(2S)-2-amino-3-(1-methylimidazol-4-yl)propanoic acid

1-Methyl-L-histidine

169.18

C21H30O2

methyl 3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenoate

11-cis Retinoic Acid Methyl Ester

314.50

C3H6ClFO

1-chloro-3-fluoro-propan-2-ol

1-Chloro-3-fluoro-2-propanol

112.53

C19H24O5

(1R,2R,5R,8R,9S,10R,11S,12S)-12-hydroxy-11-methyl-6-methylene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylic acid

Gibberellin A4

332.40

C30H50O

(1S,3R,6S,8R,11S,12S,15R,16R)-15-[(1R)-1,5-dimethylhex-4-enyl]-7,7,12,16-tetramethyl-pentacyclo[9.7.0.01,3.03,8.012,16]octadecan-6-ol

Cycloartenol

426.70

C40H56O

(1R)-3,5,5-trimethyl-4-[3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol

552.90

C19H22N2O

(15R,19R)-15-ethyl-1,11-diazapentacyclo[9.6.2.02,7.08,18.015,19]nonadeca-2,4,6,8(18)-tetraen-17-one

eburnamonine

294.40

C28H46O

(3S,8S,9S,10R,13R,14S,17R)-17-[(1R)-1,5-dimethyl-4-methylene-hexyl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

24-Methylenecholesterol

398.70

C24H27NO4

(13aS)-2,3,6,7-tetramethoxy-9,11,12,13,13a,14-hexahydrophenanthro[9,10-f]indolizine

Tylophorine

393.50

C11H14O2

4-hydroxy-3-methyl-2-penta-2,4-dienyl-cyclopent-2-en-1-one

SCHEMBL7526564

178.23

C4H9NO5S

2-amino-4-sulfo-butanoic acid

Homocysteic acid

183.19

C25H41NO7

11-ethyl-4,6,18-trimethoxy-13-(methoxymethyl)-11-azahexacyclo[7.7.2.12,5.01,10.03,8.013,17]nonadecane-8,9,16-triol

467.60

C15H18O3

(3aS,6S,6aR,9aR,9bR)-6,9a-dimethyl-3-methylene-3a,4,5,6,6a,9b-hexahydroazuleno[8,7-b]furan-2,9-dione

Ambrosin

246.30

C24H32O5

(1S,4R,5R,9R,10R,12R,13R,17R)-19-isopropyl-5,9-dimethyl-14,16-dioxo-15-oxapentacyclo[10.5.2.01,10.04,9.013,17]nonadec-18-ene-5-carboxylic acid

Maleopimaric acid

400.50

C19H26O3

(9S,14S)-10-(hydroxymethyl)-13-methyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17-dione

302.40

C22H22O8

(5aR,8aR,9R)-4-hydroxy-9-(3,4,5-trimethoxyphenyl)-5a,6,8a,9-tetrahydro-5H-isobenzofuro[5,6-f][1,3]benzodioxol-8-one

beta-Peltatin

414.40

C14H18O7

1-[4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]oxyphenyl]ethanone

Picein

298.29

C6H13NO2S

(2R)-2-amino-4-ethylsulfanyl-butanoic acid

D-Ethionine

163.24

C6H5IO

iodosylbenzene

Iodosobenzene

220.01

C10H10O4

3-(3-hydroxy-4-methoxy-phenyl)prop-2-enoic acid

3-(3-hydroxy-4-methoxyphenyl)prop-2-enoic acid

194.18

C3H7IO2

3-iodopropane-1,2-diol

Glyceryl iodide

201.99

C27H46O

(5S,8R,9S,10S,13R,14S,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one

5alpha-Cholestan-3-one

386.70

C21H20O8

(5aR,8aR,9R)-4-hydroxy-9-(4-hydroxy-3,5-dimethoxy-phenyl)-5a,6,8a,9-tetrahydro-5H-isobenzofuro[5,6-f][1,3]benzodioxol-8-one

alpha-Peltatin

400.40

C20H34O

5-[(1S,4aS,8aS)-5,5,8a-trimethyl-2-methylene-decalin-1-yl]-3-methyl-pent-1-en-3-ol

Labda-8(20),14-dien-13-ol, (13R)-

290.50

C27H46O

(5R,8R,9S,10S,13R,14S,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one

5beta-Cholestan-3-one

386.70

C25H40N7O19P3S

4-[2-[3-[[(2R)-4-[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-3-phosphonooxy-tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl]oxy-hydroxy-phosphoryl]oxy-2-hydroxy-3,3-dimethyl-butanoyl]amino]propanoylamino]ethylsulfanyl]-4-oxo-butanoic acid

succinyl-CoA

867.60

C4H8O3

(3R)-3-hydroxybutanoic acid

625-72-9

104.10

C6H11NO4

(2S)-2-aminohexanedioic acid

L-2-Aminoadipic acid

161.16

Hydrogen + Oxygen Compounds (H + O)