| Crotalid Venoms | Venoms from snakes of the subfamily Crotalinae or pit vipers, found mostly in the Ameri... more | 2 | 3 | Details |
| Crown Compounds | Macrocyclic compounds analogous to CROWN ETHERS but which lack any OXYGEN atoms. | 1 | 4 | Details |
| Cryoprotective Agents | Substances that provide protection against the harmful effects of freezing temperatures. | 3 | 28 | Details |
| Cryptoxanthins | Mono-hydroxylated xanthophylls formed from the hydroxylation of BETA-CAROTENE. Isomers ... more | 1 | 0 | Details |
| CTLA-4-directed Antibody Interactions | Not Available | 1 | 1 | Details |
| CTLA-4-directed Blocking Antibody | Not Available | 2 | 2 | Details |
| Curare Alkaloids | Not Available | 3 | 14 | Details |
| CXC Chemokine Receptor 4 Antagonist | Not Available | 1 | 12 | Details |
| Cyanates | Organic salts of cyanic acid containing the -OCN radical. | 3 | 5 | Details |
| Cyanides | Inorganic salts of HYDROGEN CYANIDE containing the -CN radical. The concept also includ... more | 4 | 15 | Details |
| Cyanoacrylates | A group of compounds having the general formula CH2=C(CN)-COOR; it polymerizes on conta... more | 2 | 0 | Details |
| Cyanobacteria Toxins | Toxic secondary metabolites produced CYANOBACTERIA. | 3 | 5 | Details |
| Cycadopsida | A class of vascular seed plants also known as gymnosperms in the subdivision spermatoph... more | 2 | 15 | Details |
| Cyclazocine | An analgesic with mixed narcotic agonist-antagonist properties. | 1 | 1 | Details |
| Cyclic Amines | Not Available | 2 | 1 | Details |
| Cyclic AMP | An adenine nucleotide containing one phosphate group which is esterified to both the 3'... more | 3 | 13 | Details |
| Cyclic AMP-Dependent Protein Kinases, agonists | Not Available | 0 | 0 | Details |
| Cyclic AMP-Dependent Protein Kinases, antagonists & inhibitors | Not Available | 2 | 6 | Details |
| Cyclic Lipopeptides | Not Available | 2 | 11 | Details |
| Cyclic Nucleotide Phosphodiesterases, Type 5 | Not Available | 1 | 1 | Details |
| Cyclic Nucleotide-Gated Cation Channels | Not Available | 2 | 3 | Details |
| Cyclic Nucleotide-Gated Cation Channels, antagonists & inhibitors | Not Available | 0 | 0 | Details |
| Cyclic Pyranopterin Monophosphate | Not Available | 1 | 5 | Details |
| Cyclin B | Not Available | 1 | 4 | Details |
| Cyclin-dependent kinase (CDK) inhibitors | Not Available | 3 | 26 | Details |