| Chlorine | 클로린 | KR BannedEU BannedUS — |
| Chlormethine (INN) and its salts | | KR —EU BannedUS — |
| Chlormezanone (INN) | | KR —EU BannedUS — |
| Chloro-1-ethylcyclohexyl carbonate | 클로로-1-에틸사이클로헥실카보네이트 | KR —EU BannedUS — |
| Chloroacetaldehyde | 클로로아세트알데하이드 | KR BannedEU BannedUS — |
| Chloroacetamide | 클로로아세타마이드 | KR LimitsEU BannedUS Limits |
| Chloroethane | 클로로에탄 | KR BannedEU BannedUS — |
| Chloroform | 클로로폼 | KR BannedEU BannedUS Banned |
| Chloromethane (Methyl chloride) | | KR —EU BannedUS — |
| Chloromethyl methyl ether | 클로로메틸메틸에터 | KR BannedEU BannedUS — |
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| Chloro-N,N-dimethylformiminium chloride | 클로로-N,N-다이메틸폼이미늄클로라이드 | KR —EU BannedUS — |
| Chlorophene | 클로로펜 | KR LimitsEU BannedUS — |
| Chloroprene (stabilized); (2-Chlorobuta-1,3-diene) | 클로로프렌(2-클로로부타-1,3-다이엔) | KR BannedEU BannedUS — |
| Chlorothalonil | 클로로탈로닐 | KR BannedEU BannedUS — |
| Chlorotoluron; (3-(3-Chloro-p-tolyl)-1,1-dimethylurea) | | KR —EU BannedUS — |
| Chlorphenoxamine (INN) | | KR —EU BannedUS — |
| Chlorpropamide (INN) | | KR —EU BannedUS — |
| Chlorpropham (ISO); isopropyl 3-chlorocarbanilate | | KR —EU BannedUS — |
| Chlorprothixene (INN) and its salts | | KR —EU BannedUS — |
| Chlortalidone (INN) | | KR —EU BannedUS — |
| Chlorzoxazone (INN) | | KR —EU BannedUS — |
| Chlozolinate (ISO) | | KR —EU BannedUS — |
| Cholecalciferol | 콜레칼시페롤 | KR LimitsEU BannedUS — |
| Cholecalciferol/Yeast Polypeptide | 콜레칼시페롤/효모폴리펩타이드 | KR BannedEU BannedUS — |
| Choline Chloride | 콜린클로라이드 | KR BannedEU BannedUS — |
| Chromium | 크롬 | KR BannedEU BannedUS — |
| Chrysene | 크리센 | KR BannedEU BannedUS — |
| Cinchocaine (INN) and its salts | | KR —EU BannedUS — |
| Cinchophen (INN), its salts, derivatives and salts of these derivatives | 신코펜 및 그 염류(유도체 포함) | KR BannedEU BannedUS — |
| Cinidon ethyl (ISO); ethyl (Z)-2-chloro-3-[2-chloro-5-(cyclohex-1-ene-1,2-dicarboximido)phenyl]acrylate | | KR —EU BannedUS — |
| Cis-1-(3-chlorallyl)-3,5,7-triaza-1-azoniaadamantane chloride (cis-CTAC), quaternium-15 | | KR —EU BannedUS — |
| CI Solvent Yellow 14 | | KR —EU BannedUS — |
| Clarified oils (petroleum), catalytic cracked | 석유 정제 오일, catalytic cracked | KR —EU BannedUS — |
| Clarified oils (petroleum), hydrodesulfurized catalytic cracked | 석유 정제 오일, hydrodesulfurised catalytic cracke | KR —EU BannedUS — |
| Claviceps purpurea Tul., its alkaloids and galenical preparations | 맥각 Claviceps purpurea Tul., 그 알칼로이드 및 생약제제 | KR BannedEU BannedUS — |
| Clofenamide (INN) | | KR —EU BannedUS — |
| Clofenotane (INN); DDT (ISO) | | KR —EU BannedUS — |
| clothianidin (ISO); (E)-1-(2-chloro-1,3-thiazol-5-ylmethyl)-3-methyl-2-nitroguanidine | | KR —EU BannedUS — |
| Coal liquids, liq. solvent extn., if they contain > 0.005 % w/w benzo[a]pyrene | 벤조(a)피렌(benzo(a)pyrene) 0.005%를 초과하여 함유하는 석유화학 유래물질, 석탄 및 목타르 유래물질 (Coal liquids, liq. solvent extn) | KR —EU BannedUS — |
| Coal liquids, liq. solvent extn. soln., if they contain > 0,005 % w/w benzo[a]pyrene | 벤조(a)피렌(benzo(a)pyrene) 0.005%를 초과하여 함유하는 석유화학 유래물질, 석탄 및 목타르 유래물질 (Coal liquids, liq. solvent extn. Soln) | KR —EU BannedUS — |
| Coal Tar | 콜타르 | KR BannedEU BannedUS — |
| Cobalt | 코발트 | KR —EU BannedUS — |
| Cobalt benzenesulphonate | | KR —EU BannedUS — |
| Cobalt carbonate | 코발트카보네이트 | KR —EU BannedUS — |
| Cobalt Chloride | 코발트클로라이드 | KR BannedEU BannedUS — |
| Cobalt di(acetate) | 코발트다이(아세테이트) | KR —EU BannedUS — |
| Cobalt dinitrate | 코발트다이나이트레이트 | KR —EU BannedUS — |
| Cobalt lithium nickel oxide | 코발트리튬니켈옥사이드 | KR —EU BannedUS — |
| Cobalt nickel gray periclase; C.I. Pigment Black 25; C.I. 77332 [1]; Cobalt nickel dioxide [2]; Cobalt nickel oxide [3]; Nickel arsenide [2] | 코발트니켈그레이페리클레이스; C.I. Pigment Black 25; C.I. 77332 [1]; 코발트니켈다이옥사이드 [2]; 코발트니켈옥사이드 [3]; 니켈아르세나이드 [2] | KR —EU BannedUS — |
| Cobalt sulphate | 코발트설페이트 | KR BannedEU BannedUS — |
| Colchicine, its salts and derivatives | 콜키신, 그 염류 및 유도체 | KR BannedEU BannedUS — |
| Colchicoside and its derivatives | 콜키코사이드 및 그 유도체 | KR BannedEU BannedUS — |
| Colchicum autumnale L. and its galenical preparations | 콜치쿰 Colchicum autumnale L. 및 그 생약제제 | KR BannedEU BannedUS — |
| Colouring agent CI 12140 | | KR —EU BannedUS — |
| Colouring agent CI 42640 ([4-[[4-(Dimethylamino)phenyl][4-[ethyl(3-sulphonatobenzyl)amino]phenyl]methylene]cyclohexa-2,5-dien-1-ylidene](ethyl)(3-sulphonatobenzyl)ammonium, sodium salt) | | KR —EU BannedUS — |
| Coniine | 코니인 | KR BannedEU BannedUS — |
| Conium Maculatum Root Extract | 나도독미나리뿌리추출물 | KR BannedEU BannedUS — |
| Convallatoxin | 콘발라톡신 | KR BannedEU BannedUS — |
| Cornyeabacterium Lipophilicus/Prasterone Ferment Filtrate Extract | 콘에아박테리움리포필리커스/프라스테론발효여과추출물 | KR BannedEU BannedUS — |
| Costus root oil (Saussurea lappa Clarke), when used as a fragrance ingredient | 목향뿌리오일 (착향제로 사용될 때) | KR —EU BannedUS — |