| PARLABEL | NAME Sort descending | CAS NUMBER |
|---|---|---|
| CO2F | Carbon Dioxide, Free | NA |
| CDS | Carbon disulfide | 75-15-0 |
| CMONOXIDE | Carbon monoxide | 630-08-0 |
| CTCL | Carbon tetrachloride | 56-23-5 |
| C-14 | Carbon-14 | 14762-75-5 |
| CBOD | Carbonaceous Biochemical Oxygen Demand | NA |
| ALKC | Carbonate Alkalinity as CACO3 | NA |
| CACO3 | Carbonate as CaCO3 | NA |
| CO3 | Carbonate as CO3 | NA |
| COS | Carbonyl sulfide | 463-58-1 |
| CARBOPHENOTH | Carbophenothion | 786-19-6 |
| CARBOPHEMETH | Carbophenothion methyl | 953-17-3 |
| CARSULFAN | Carbosulfan | 55285-14-8 |
| CARBOXIN | Carboxin | 5234-68-4 |
| CARFENTRAZ | Carfentrazone | 128621-72-7 |
| CARISOPRODOL | Carisoprodol | 8053-63-2 |
| CATION-EX | Cation Exchange Capacity | NA |
| CELLFIBER | Cellulose fiber | 9004-34-6 |
| CE | Cerium | 7440-45-1 |
| CE-139 | Cerium-139 | 13982-30-4 |
| CE-141 | Cerium-141 | 13967-74-3 |
| CE-144 | Cerium-144 | 14762-78-8 |
| CS | Cesium | 7440-46-2 |
| CS-134 | Cesium-134 | 13967-70-9 |
| CS-135 | Cesium-135 | 15726-30-4 |
| CS-136 | Cesium-136 | 14234-29-8 |
| CS-137 | Cesium-137 | 10045-97-3 |
| CS-138 | Cesium-138 | 15758-29-9 |
| COD | Chemical Oxygen Demand | NA |
| CODDIS | Chemical Oxygen Demand (COD), Dissolved | NA |
| CHLORALHY | Chloral hydrate | 302-17-0 |
| CLBEN | Chloramben | 133-90-4 |
| CHLORAMINET | Chloramine-T | 127-65-1 |
| CHLORAMINES | Chloramines (as Cl2) | NA |
| CHLORANIL | Chloranil | 118-75-2 |
| CHLORATE | Chlorate | 7775-09-9 |
| CHLORDANE | Chlordane | 57-74-9 |
| CHLORDANETOT | Chlordane, Total | 12789-03-6 |
| CVP | Chlorfenvinphos | 470-90-6 |
| CHLORIDAZON | Chloridazon | 1698-60-8 |
| CL | Chloride | 16887-00-6 |
| CHLORIM | Chlorimuron | 99283-00-8 |
| CLHYD | Chlorinated Hydrocarbon | NA |
| CT | Chlorine Contact Time (Chlorine Residual * Contact Time) | NA |
| CLO2 | Chlorine dioxide | 10049-04-4 |
| CHLORINEU | Chlorine Usage | NA |
| CL2 | Chlorine, Free Available | NA |
| CHLORINE | Chlorine, Total residual | 7782-50-5 |
| CHLORITE | Chlorite | 14998-27-7 |
| CHLORMEPHOS | Chlormephos | 24934-91-6 |
| CLACTH | Chloroacetaldehyde | 107-20-0 |
| CAA | Chloroacetic acid | 79-11-8 |
| CLAN | Chloroacetonitrile | 107-14-2 |
| CLBZ | Chlorobenzene | 108-90-7 |
| CLBZD5 | Chlorobenzene-d5 | 3114-55-4 |
| CLBZLATE | Chlorobenzilate | 510-15-6 |
| CDBAA | Chlorodibromoacetic acid | 5278-95-5 |
| CLEA | Chloroethane | 75-00-3 |
| CLEAD5 | Chloroethane-d5 | 19199-91-8 |
| FC31 | Chlorofluoromethane | 593-70-4 |
| TCLME | Chloroform | 67-66-3 |
| TCLMED | Chloroform-D | 865-49-6 |
| CLIDMETH | Chloroiodomethane | 593-71-5 |
| CLME | Chloromethane | 74-87-3 |
| CLMME | Chloromethyl methyl ether | 107-30-2 |
| CHLORONEB | Chloroneb | 2675-77-6 |
| CHLOROPHYLLA | Chlorophyll a | 479-61-8 |
| CLPICRIN | Chloropicrin | 76-06-2 |
| CHLORPROPHAM | Chloropropham | 101-21-3 |
| CLPROP | Chloropropylate | 5836-10-2 |
| CLPYRIFOSME | Chloropyrifos methyl | 5598-13-0 |
| TERMIL | Chlorothalonil | 1897-45-6 |
| BZLCL | Chlorotoluene | 25168-05-2 |
| CHLOROTOLUR | Chlorotoluron | 15545-48-9 |
| CTFE | Chlorotrifluoroethene | 79-38-9 |
| CHLOROXURON | Chloroxuron | 1982-47-4 |
| CLPYRIFOS | Chlorpyrifos | 2921-88-2 |
| CLPYRIFOSOX | Chlorpyrifos oxon | 5598-15-2 |
| CSULFURON | Chlorsulfuron | 64902-72-3 |
| CTHIOPHO | Chlorthiophos | 60238-56-4 |
| CHOLESTANE | Cholestane | 481-21-0 |
| CHROMATE | Chromate | 13907-45-4 |
| CR | Chromium | 7440-47-3 |
| CR3 | Chromium III | 16065-83-1 |
| CR6 | Chromium, Hexavalent | 18540-29-9 |
| CR-51 | Chromium-51 | 14392-02-0 |
| CHRONICTOX | Chronic Toxicity | NA |
| CHRONTOXSP1 | Chronic Toxicity (Species 1) | NA |
| CHRONTOXSP2 | Chronic Toxicity (Species 2) | NA |
| CHRONTOXSP3 | Chronic Toxicity (Species 3) | NA |
| CHAMYABAHSG | Chronic Toxicity-Atlantic Mysid, A.bahia-Growth | NA |
| CHAMYABAHS | Chronic Toxicity-Atlantic Mysid, A.bahia-Survival | NA |
| CHBIOYSTLARD | Chronic Toxicity-Bivalve or Oyster-Larval development | NA |
| CHCDUBIAR | Chronic Toxicity-C.dubia-Reproduction | NA |
| CHCDUBIAS | Chronic Toxicity-C.dubia-Survival | NA |
| CHFATMINNOWG | Chronic Toxicity-Fathead Minnow-Growth | NA |
| CHFATMINNOWS | Chronic Toxicity-Fathead Minnow-Survival | NA |
| CHGKELPGTL | Chronic Toxicity-Giant Kelp-Germ-tube length | NA |
| CHGKELPG | Chronic Toxicity-Giant Kelp-Germination | NA |
| CHGRALGAS | Chronic Toxicity-Green Alga-Growth | NA |