1,25-Dihydroxycholecalciferol use Calcitriol

1,25-Dihydroxyvitamin D3 use Calcitriol

12-alpha-Hydroxylase use Steroid 12-alpha-Hydroxylase

1,2-Benzopyrones use Coumarins

1,2-Benzoquinones use Benzoquinones

1,2-Cyclic-Inositol-Phosphate Phosphodiesterase use Glycerophosphoinositol Inositolphosphodiesterase

1,2-Dibromoethane use Ethylene Dibromide

1,2-Dimethylhydrazine

1,2-Dipalmitoylphosphatidylcholine

1,2-Propanediol use Propylene Glycol

12-R-HETE use 12-Hydroxy-5,8,10,14-eicosatetraenoic Acid

12-S-HETE use 12-Hydroxy-5,8,10,14-eicosatetraenoic Acid

12-S-Hydroxyeicosatetraenoic Acid use 12-Hydroxy-5,8,10,14-eicosatetraenoic Acid

13-cis-Acitretin use Acitretin

13-cis-Retinoic Acid use Isotretinoin

1,3-Dimethyl-5-aminoadamantane use Memantine

1,3-Oxazolidin-2-one use Oxazolidinones

14-3-3 Proteins

1,4,5-InsP3 use Inositol 1,4,5-Trisphosphate

1,4-alpha-Glucan Branching Enzyme

1,4-alpha-Glucosidase, Exo use Glucan 1,4-alpha-Glucosidase

1,4-Benzopyrones use Chromones

1,4-Benzoquinones use Benzoquinones

1,4-Butanolide use 4-Butyrolactone

14C use Carbon 14

1,5-Deoxy-1,5-imino-D-Mannitol use 1-Deoxynojirimycin

1,5-Diphenylcarbazide use Diphenylcarbazide

15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid

1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine

15-Lipoxygenase use Arachidonate 15-Lipoxygenase

15-Methylprostaglandin E2 use Arbaprostil

15-Methylprostaglandin F2alpha use Carboprost

15-Oxoprostaglandin 13-Reductase

15th Century History use History, 15th Century

16,16-Dimethylprostaglandin E2

16S Ribosomal RNA use RNA, Ribosomal, 16S

16th Century History use History, 16th Century

17,20-Lyase use Steroid 17-alpha-Hydroxylase

17,21-Dimethyl-19-nor-4,9-Pregnadiene-3,20-dione use Promegestone

17 alpha-Hydroxylase use Steroid 17-alpha-Hydroxylase

17-alpha-Hydroxypregnenolone

17-alpha-Hydroxyprogesterone

17 beta-Estradiol use Estradiol

17 beta-Hydroxysteroid Dehydrogenases use 17-Hydroxysteroid Dehydrogenases

17-Hydroxycorticosteroids

17-Hydroxyprogesterone use 17-alpha-Hydroxyprogesterone

17-Hydroxysteroid Dehydrogenases

17-Ketosteroids

17-Oxosteroids use 17-Ketosteroids

17th Century History use History, 17th Century

1,8-Dihydroxy-9-Anthrone use Anthralin

18FDG use Fluorodeoxyglucose F18

18F Fluorodeoxyglucose use Fluorodeoxyglucose F18

18-Hydrocorticosterone use 18-Hydroxycorticosterone

18-Hydroxycorticosterone

18-Hydroxydesoxycorticosterone

18S Ribosomal RNA use RNA, Ribosomal, 18S

18th Century History use History, 18th Century

19-Iodocholesterol

19-Norandrostanes use Estranes

19-Norandrostenes use Estrenes

19-Nortestosterone use Nandrolone

19th Century History use History, 19th Century

1-Acylglycerol-3-Phosphate O-Acyltransferase

1-Acylglycerophosphocholine Acyltransferase use 1-Acylglycerophosphocholine O-Acyltransferase

1-Acylglycerophosphocholine O-Acyltransferase

1-Alkyl-2-acetylglycerophosphocholine Esterase

1 alpha,25-Dihydroxycholecalciferol use Calcitriol

1 alpha,25-Dihydroxyvitamin D3 use Calcitriol

1-Aminocyclopentanecarboxylic Acid use Cycloleucine

1-Aminonaphthalene use 1-Naphthylamine

1-Butanol

1-Carboxyglutamic Acid

1-Deoxymannojirimycin use 1-Deoxynojirimycin

1-Deoxynojirimycin

1-Heptanol use Heptanol

1-Methyl-3-isobutylxanthine

1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine

1-Methyl-4-phenylpyridinium

1-Naphthylamine

1-Naphthylisothiocyanate

1-Octanol

1-Oxacephalosporin use Moxalactam

1-Phosphatidylinositol 3-Kinase

1-Phosphatidylinositol 4-Kinase

1-Phosphatidylinositol Phosphodiesterase use Phosphatidylinositol Diacylglycerol-Lyase

1-Propanol

1-Pyrroline-5-Carboxylate Dehydrogenase

1-Sar-8-Ala Angiotensin II use Saralasin

1-Sar-8-Ile Angiotensin II use 1-Sarcosine-8-Isoleucine Angiotensin II

1-Sarcosine-8-Alanine Angiotensin II use Saralasin

1-Sarcosine-8-Isoleucine Angiotensin II

20,25-Diazacholesterol use Azacosterol

20-alpha-Dihydroprogesterone

20-alpha-Hydroxysteroid Dehydrogenase

20-beta-Hydroxysteroid Dehydrogenase use Cortisone Reductase

20-Hydroxyecdysone use Ecdysterone

20-Hydroxysteroid Dehydrogenases

20th Century History use History, 20th Century

21-Hydroxyprogesterone use Desoxycorticosterone

21st Century History use History, 21st Century

2,2-Bipyridine use 2,2'-Dipyridyl

2,2'-Dipyridyl

2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine

2,3-Bisphosphoglycerate use 2,3-Diphosphoglycerate

2,3-Butanedione use Diacetyl

2',3'-Cyclic-Nucleotide Phosphodiesterases

2',3'-Didehydro-3'-deoxythymidine use Stavudine

2',3'-Dideoxy-3'-thiacytidine use Lamivudine

2',3'-Dideoxyadenosine use Dideoxyadenosine

2',3'-Dideoxycytidine use Zalcitabine

2',3'-Dideoxyinosine use Didanosine

2',3'-Dideoxynucleosides use Dideoxynucleosides

2,3-Diketogulonic Acid

2,3-Diphosphoglycerate

2,3-Diphosphoglyceric Acid use 2,3-Diphosphoglycerate

2,3-DPG use 2,3-Diphosphoglycerate

23S Ribosomal RNA use RNA, Ribosomal, 23S

24,25-Dihydroxycholecalciferol use 24,25-Dihydroxyvitamin D 3

24,25-Dihydroxyvitamin D 3

2,4,5-Trichlorophenoxyacetic Acid

2,4,5-T use 2,4,5-Trichlorophenoxyacetic Acid

2,4,6-Trinitro-1-chlorobenzene use Picryl Chloride

24-Dehydrocholesterol use Desmosterol

2,4-Dichlorophenoxyacetic Acid

2,4-Dinitrophenol

2,4-DNP use 2,4-Dinitrophenol

2,4-D use 2,4-Dichlorophenoxyacetic Acid

2-5A Synthetase use 2',5'-Oligoadenylate Synthetase

2,5-Dihydroxybenzoic Acids use Gentisates

2,5-Dimethoxy-4-Methylamphetamine

2,5-Furandiones use Maleic Anhydrides

25-Hydroxycholecalciferol 1-Hydroxylase use 25-Hydroxyvitamin D3 1-alpha-Hydroxylase

25-Hydroxycholecalciferol use Calcifediol

25-Hydroxyergocalciferol use 25-Hydroxyvitamin D 2

25-Hydroxyvitamin D 2

25-Hydroxyvitamin D3 1-alpha-Hydroxylase

25-Hydroxyvitamin D 3 use Calcifediol

2',5'-Oligoadenylate Polymerase use 2',5'-Oligoadenylate Synthetase

2',5'-Oligoadenylate Synthetase

2,6-Dichloroindophenol

2,6-Dichlorophenolindophenol use 2,6-Dichloroindophenol

28S Ribosomal RNA use RNA, Ribosomal, 28S

2-Acetamidofluorene use 2-Acetylaminofluorene

2-Acetohydroxy-3-Ketoacid Isomeroreductase use 2-Acetolactate Mutase

2-Acetolactate Mutase

2-Acetylaminofluorene

2-Alanyl-Leucine Enkephalin use Enkephalin, Leucine-2-Alanine

2-Amino-4-Mercaptobutyric acid use Homocysteine

2-Amino-5-phosphonopentanoic Acid use 2-Amino-5-phosphonovalerate

2-Amino-5-phosphonovalerate

2-Amino-5-phosphonovaleric Acid use 2-Amino-5-phosphonovalerate

2-Amino-6-(1,2,3-trihydroxypropyl)-4(3H)-pteridinone use Neopterin

2-Aminoadipate Transaminase

2-Aminoadipic Acid

2-Aminoethanol use Ethanolamine

2-Aminoethylisothiuronium Bromide use beta-Aminoethyl Isothiourea

2-Aminoethylphosphonic Acid use Aminoethylphosphonic Acid

2-Aminonaphthalene use 2-Naphthylamine

2-Aminopurine

2-Bromoergocryptine use Bromocriptine

2-Butenedioic Acid use Fumaricum Acidum

2-Butenoic Acids use Crotonic Acids

2-Chlorethanol use Ethylene Chlorohydrin

2-Chloro-2'-deoxyadenosine use Cladribine

2-Chloroacetophenone use omega-Chloroacetophenone

2-Chloroadenosine

2-Chlorodeoxyadenosine use Cladribine

2-Chloroethyl Alcohol use Ethylene Chlorohydrin

2-Dehydro-3-Deoxyphosphoheptonate Aldolase use 3-Deoxy-7-Phosphoheptulonate Synthase

2'-Deoxycoformycin use Pentostatin

2-Fluoro-2-deoxy-D-Glucose use Fluorodeoxyglucose F18

2-Fluoro-2-deoxyglucose use Fluorodeoxyglucose F18

2H-Benzo(a)quinolizin-2-ol, 2-Ethyl-1,3,4,6,7,11b-hexahydro-3-isobutyl-9,10-dimethoxy-

2-Hexanone use Methyl n-Butyl Ketone

2-Hydroxy-5-nitrobenzyl Bromide

2-Hydroxyphenethylamine

2-Isopropylmalate Synthase

2-Mercaptoethanesulfonate use Mesna

2-Methyl-4-chlorophenoxyacetic Acid

2-Naphthylamine

2-Nicotinamidoethyl Nitrate use Nicorandil

2-Oxo Acid Carboxy-Lyase use Pyruvate Decarboxylase

2-Oxoisovalerate Dehydrogenase (Acylating)

2-Oxoisovalerate Dehydrogenase (Lipoamide) use 3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide)

2-PAM Compounds use Pralidoxime Compounds

2-Phenylethanolamine use 2-Hydroxyphenethylamine

2-Propanol

2-Pyridinylmethylsulfinylbenzimidazoles

3,3',5'-Triiodothyronine use Triiodothyronine, Reverse

3,3'-Diaminobenzidine

3,3'-Dichlorobenzidine

3,4-Benzopyrene use Benzo(a)pyrene

3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer

3,4-Dihydroxyphenylacetic Acid

3,4-Dihydroxyphenylserine use Droxidopa

3,4-Methylenedioxyamphetamine

3',5'-Cyclic AMP 5'-Nucleotidohydrolase use 3',5'-Cyclic-AMP Phosphodiesterases

3',5'-Cyclic-AMP Phosphodiesterases

3',5'-Cyclic GMP 5'-Nucleotidohydrolase use 3',5'-Cyclic-GMP Phosphodiesterases

3',5'-Cyclic-GMP Phosphodiesterases

3',5'-Cyclic-Nucleotide Phosphodiesterase use 3',5'-Cyclic-AMP Phosphodiesterases

3-alpha-Hydroxysteroid Dehydrogenase (B-Specific)

3-Aminopropionic Acid use beta-Alanine

3-Aminopropylene use Allylamine

3 beta-Hydroxy-delta-5-Steroid Dehydrogenase use Progesterone Reductase

3-beta-Hydroxysteroid Dehydrogenase use 3-Hydroxysteroid Dehydrogenases

3-Deazauridine

3-Deoxy-7-Phosphoheptulonate Synthase

3-Deoxyarabinoheptulosonate-7-Phosphate Synthetase use 3-Deoxy-7-Phosphoheptulonate Synthase

3' End Processing, RNA use RNA 3' End Processing

3' Flanking Region

3-Hydroxy-3-methylglutaric Acid use Meglutol

3-Hydroxyacyl CoA Dehydrogenases

3-Hydroxyacyl CoA Hydrolyases use Enoyl-CoA Hydratase

3-Hydroxyacyl Dehydratases use Enoyl-CoA Hydratase

3-Hydroxyanthranilate 3,4-Dioxygenase

3-Hydroxyanthranilic Acid

3-Hydroxybutyrate use 3-Hydroxybutyric Acid

3-Hydroxybutyric Acid

3-Hydroxysteroid Dehydrogenases

3-Iodobenzylguanidine

3-Isobutyl-1-methylxanthine use 1-Methyl-3-isobutylxanthine

3-Isoleucyl Vasopressin use Vasotocin

3-Isopropylmalate Dehydrogenase

3-Keto-5-alpha-Steroid delta-4-Dehydrogenase use Testosterone 5-alpha-Reductase

3-Ketoacyl CoA Thiolase use Acetyl-CoA C-Acyltransferase

3-Ketosteroid Isomerases use Steroid Isomerases

3-Ketothiolase use Acetyl-CoA C-Acyltransferase

3-Mercaptopropanoic Acid use 3-Mercaptopropionic Acid

3-Mercaptopropionic Acid

3-Methoxy-4-hydroxyphenylethanol

3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide)

3-Methylindole use Skatole

3-O-Methyl-D-Glucose use 3-O-Methylglucose

3-O-Methylglucose

3-Oxoacyl-(Acyl-Carrier-Protein) Synthase

3-Oxosteroid Isomerases use Steroid Isomerases

3-Phosphoglyceraldehyde use Glyceraldehyde 3-Phosphate

3-Phosphoshikimate 1-Carboxyvinyltransferase

3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ester

3-Sulfoalanine use Cysteic Acid

3T3 Cells

3T3-L1 Cells

3TC use Lamivudine

3' Untranslated Regions

3'UTR use 3' Untranslated Regions

4-1BB Ligand

4-1BB Receptors use Antigens, CD137

4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinone

4,4'-Diisothiocyanostilbene-2,2'-Disulfonic Acid

4,5-Dihydro-1-(3-(trifluoromethyl)phenyl)-1H-pyrazol-3-amine

4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic Acid

4-Aminobenzoic Acid

4-Aminobutyrate Transaminase

4-Aminobutyric Acid use gamma-Aminobutyric Acid

4-Aminohippuric Acid use p-Aminohippuric Acid

4-Aminopyridine

4-Aminosalicylic Acid use p-Aminosalicylic Acid

4-Butyrolactone

4-Chloro-7-nitrobenzofurazan

4-Chloromercuribenzenesulfonate

4-Demethoxydaunorubicin use Idarubicin

4'-Epiadriamycin use Epirubicin

4'-Epidoxorubicin use Epirubicin

4-Homosulfanilamide use Mafenide

4-HPR use Fenretinide

4-Hydroxyaminoquinoline-1-oxide

4-Hydroxyaminoquinoline-N-oxide use 4-Hydroxyaminoquinoline-1-oxide

4-Hydroxybenzoate-3-Monooxygenase

4-Hydroxybenzoic Acids use Parabens

4-Hydroxybutyrate Sodium use Sodium Oxybate

4-Hydroxybutyric Acid Lactone use 4-Butyrolactone

4-Hydroxycoumarins

4 Hydroxyphenylpyruvate Dioxygenase Deficiency Disease use Tyrosinemias

4-Hydroxyphenylpyruvate Dioxygenase

4-Nitrophenol-2-Hydroxylase use Cytochrome P-450 CYP2E1

4-Nitrophenylphosphatase

4-Nitroquinoline-1-oxide

4-Nitroquinoline-N-oxide use 4-Nitroquinoline-1-oxide

4-Quinolones

5,10-Methylenetetrahydrofolate Reductase (FADH2)

5,10-Methylenetetrahydrofolate-Reductase (NADH) use Methylenetetrahydrofolate Dehydrogenase (NAD+)

5,12-DiHETE use Leukotriene B4

5,12-HETE use Leukotriene B4

5,5'-Dithiobis(2-nitrobenzoic Acid) use Dithionitrobenzoic Acid

5,6-Benzoflavone use beta-Naphthoflavone

5,6-Dihydroxytryptamine

5,7-Dihydroxytryptamine

5,8,11,14,17-Eicosapentaenoic Acid use Eicosapentaenoic Acid

5,8,11,14-Eicosatetraynoic Acid

5.8S Ribosomal RNA use RNA, Ribosomal, 5.8S

5-alpha-Dihydroprogesterone

5 alpha-Dihydrotestosterone use Dihydrotestosterone

5-alpha-Reductase, Testosterone use Testosterone 5-alpha-Reductase

5-Amino-3-((5-nitro-2-furyl)vinyl)-1,2,4-oxadiazole

5-Aminolevulinate Synthetase

5-Aminosalicylate use Mesalamine

5'-AMP Nucleotidase use 5'-Nucleotidase

5' Flanking Region

5-Fluorocytosine use Flucytosine

5'-Guanylic Acid

5-HT Agonists use Serotonin Agonists

5-HT Antagonists use Serotonin Antagonists

5-HTP use 5-Hydroxytryptophan

5-HT Receptors use Receptors, Serotonin

5-HT use Serotonin

5-HT Uptake Inhibitors use Serotonin Uptake Inhibitors

5-Hydroxytryptamine Agonists use Serotonin Agonists

5-Hydroxytryptamine Antagonists use Serotonin Antagonists

5-Hydroxytryptamine Receptors use Receptors, Serotonin

5-Hydroxytryptamine use Serotonin

5-Hydroxytryptamine Uptake Inhibitors use Serotonin Uptake Inhibitors

5-Hydroxytryptophan

5-Iodo-2'-deoxyuridine use Idoxuridine

5-Leucine-2-Alanine Enkephalin use Enkephalin, Leucine-2-Alanine

5-Lipoxygenase use Arachidonate 5-Lipoxygenase

5-Methoxytryptamine

5-Methylcytosine

5-Methyltetrahydrofolate-Homocysteine S-Methyltransferase

5'-N-Ethylcarboxamidoadenosine use Adenosine-5'-(N-ethylcarboxamide)

5'-Nucleotidase

5-Oxoproline use Pyrrolidonecarboxylic Acid

5-Oxoprolyl-Peptidase use Pyroglutamyl-Peptidase I

5p Deletion Syndrome use Cri-du-Chat Syndrome

5S Ribosomal RNA use RNA, Ribosomal, 5S

5' Untranslated Regions

5'UTR use 5' Untranslated Regions

6-Aminocaproic Acid

6-Aminohexanoic Acid use 6-Aminocaproic Acid

6-Aminonicotinamide

6-Cyano-7-nitroquinoxaline-2,3-dione

6-Hydroxydopamine use Oxidopamine

6-Iodomethylnorcholesterol use Adosterol

6-Keto-PGF1 alpha use 6-Ketoprostaglandin F1 alpha

6-Ketoprostaglandin F1 alpha

6-Mercaptopurine Riboside use Thioinosine

6-Mercaptopurine

6-Methylmercaptopurine Riboside use Methylthioinosine

6-OHDA use Oxidopamine

6-Oxo-PGF1 alpha use 6-Ketoprostaglandin F1 alpha

6-Oxoprostaglandin F1 alpha use 6-Ketoprostaglandin F1 alpha

6-Phosphofructo-2-kinase-fructose-2,6-bisphosphatase use Phosphofructokinase-2

6-Phosphofructo-2-Kinase use Phosphofructokinase-2

6-Phosphofructokinase, Liver Type use Phosphofructokinase-1, Liver Type

6-Phosphofructokinase, Muscle Type use Phosphofructokinase-1, Muscle Type

6-Phosphofructokinase, Platelet Type use Phosphofructokinase-1, Type C

6-Phosphofructokinase use Phosphofructokinase-1

6-Phytase

6-Thioguanine use Thioguanine

7,12-Dimethylbenzanthracene use 9,10-Dimethyl-1,2-benzanthracene

7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide

7,8-Dihydroxy-9,10-Epoxy-7,8,9,10-Tetrahydrobenzo(a)pyrene use 7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide

7-Alkoxycoumarin O-Dealkylase

7-Deazaadenosine use Tubercidin

7-Ethoxycoumarin O-Dealkylase use 7-Alkoxycoumarin O-Dealkylase

7-Ethoxycoumarin O-Deethylase use 7-Alkoxycoumarin O-Dealkylase

7-Hydroxycoumarins use Umbelliferones

8,11,14-Eicosatrienoic Acid

8-Bromo-CAMP use 8-Bromo Cyclic Adenosine Monophosphate

8-Bromo Cyclic Adenosine Monophosphate

8-Hydroxy-2-(di-n-propylamino)tetralin

8-Methoxypsoralen use Methoxsalen

8-OH-DPAT use 8-Hydroxy-2-(di-n-propylamino)tetralin

8-Quinolinol use Oxyquinoline

11-beta-Hydroxysteroid Dehydrogenases

11-beta-Hydroxysteroid Dehydrogenase Type 1

11-beta-Hydroxysteroid Dehydrogenase Type 2

11-Dehydroprostaglandin F2alpha use Prostaglandin D2

11-Deoxycortisol use Cortodoxone

11-Desoxycortisone use Cortodoxone

11-Hydroxycorticosteroids

11q Deletion Disorder use Jacobsen Distal 11q Deletion Syndrome

12-HETE use 12-Hydroxy-5,8,10,14-eicosatetraenoic Acid

12-Hydroxy-5,8,10,14-eicosatetraenoic Acid

12-Lipoxygenase use Arachidonate 12-Lipoxygenase

12-Methoxyibogamine use Ibogaine