| English | German |
| 1,4-butanedioic acid | Bernsteinsäure |
| 1,4-butanedioic acid | Butandisäure |
| 1,4-butanedioic acid | Sukzinsäure |
| 1,4-diaminobutane | Putrescin |
| 1,4-α-glucan branching enzyme | 1,4-a-Glucan-Branching-Enzym |
| 1,4-α-glucan branching enzyme | Amylo-1,4-1,6-Transglykosidase |
| 1,4-α-glucan branching enzyme | Branching-Enzym |
| inositol 1,4,5-triphosphate | Inositol-1,4,5-triphosphat |
| 2-methyl-1,4-naphthoquinone | 2-Methyl-1,4-Naphthochinon |
| 2-methyl-3-phytyl-1,4-naphthoquinone | Phytomenadion |
| 2-methyl-3-phytyl-1,4-naphthoquinone | Vitamin K₁ |
| 2-methyl-3-phytyl-1,4-naphthoquinone | Phyllochinon |
| N-acyl-4-Sphingenyl-1-0-phosphorylcholine | Sphingomyelin |
| protein 4,1 | Protein 4,1 |
| trans-D-erythro-2-amino-4-octadecene-1,3-diol | Sphingosin |
