| #41 | Carbohydrate research. -- Amsterdam : Elsevier, 1965-. -- ISSN 0008-6215 print. -- ISSN 1873-426X online |
| #42 | Catalysis letters. -- Amsterdam : Baltzer Science Publishers, 1987-. -- ISSN 1011-372X print. -- ISSN 1572-879X online |
| #43 | Catalysis reviews, Science and engineering. -- New York : Marcel Dekker, 1967-. -- ISSN 0161-4940 |
| #44 | CATTech : The Magazine of Catalysis Sciences, Technology, and Innovation. -- Amsterdam : Baltzer Science Publishers, 1997-. -- ISSN 1384-6566 print. -- ISSN 1572-8811 online |
| #45 | Cellular polymers. -- London : Applied Science, 1982-. -- ISSN 0262-4893 print. -- ISSN 1478-2421 online |
| #46 | Cellulose Chemistry and Technology. -- Bucureşti : Editura Academiei Române, 1967-. -- ISSN 0576-9787 |
| #47 | Cement. -- Leningrad : Izdatelʹstvo literatury po stroitelʹstvu, 1933-. -- ISSN 0041-4867 |
| #48 | Cereal chemistry. -- St. Paul : American Association of Cereal Chemists, 1924-. -- ISSN 0009-0352 print. -- ISSN 1943-3638 online |
| #49 | Computational biology and chemistry. -- Oxford : Elsevier, 2003-. -- ISSN 1476-9271 print. -- ISSN 1476-928X online |
| #50 | Computers & chemistry. -- Oxford : Pergamon, 1976-2003. -- ISSN 0097-8485 print. -- ISSN 1879-0763 online |