| #221 | Liquid chromatography literature : abstracts and index. -- Niles : Preston Publ., 1972-1991. -- ISSN 0147-328X |
| #222 | Macromolecular materials and engineering. -- Weinheim : Wiley-VCH Verlag, 2000-. -- ISSN 1438-7492 print. -- ISSN 1439-2054 online |
| #223 | Macromolecules. -- Washington : American Chemical Society, 1968-. -- ISSN 0024-9297 print. -- ISSN 1520-5835 online |
| #224 | Magyar kémiai folyóirat. -- Budapest, 1895-1996. -- ISSN 0025-0155 |
| #225 | Magyar kémikusok lapja. -- Budapest : Magyar Kémikusok Egyesülete, 1946-. -- ISSN 0025-0163 |
| #226 | Manufacturing Chemist : for the fine chemical, pharmaceutical, cosmetics & toiletries and household products industries. -- London : Miller Freeman, 1981-. -- ISSN 0262-4230 |
| #227 | Mendeleev communications : Preliminary accounts of important new work in chemistry from Russia, other states of the Commonwealth of Independent Sta. -- Cambridge : The Royal Academy of Chemistry, 1991-. -- ISSN 0959-9436 print. -- ISSN 1364-551X online |
| #228 | Mikrobiologičeskij žurnal. -- Kijev : Naukova dumka, 1978-. -- ISSN 0201-8462 |
| #229 | Mikrochimica acta. -- Wien : Springer, 1966-. -- ISSN 0026-3672 print. -- ISSN 1436-5073 online |
| #230 | Milchwissenschaft. -- Kempten : Volkswirtschaftlicher Verlag, 1946-. -- ISSN 0026-3788 |