| Italian | German |
| acido dimetil-1,3 barbiturico | 1,3-Dimethylbarbitursäure |
| acido 1,3-dimetilbarbiturico | 1,3-Dimethylbarbitursäure |
| 5-allil-1,3-benzodiossolo | Safrol |
| 5-allil-1,3-benzodiossolo | 5-Allyl-1,3-benzodioxol |
| 1,3-bisfenilsulfoniltio-2-N,N-dimetilaminopropan-1,3-ditiolo | 1,3-Bisphenylsulfonylthio-2-N,N-dimethylaminopropan |
| 1,3-butadiene | Buta-1,3-dien |
| 1,3-butadiene | 1,3-Butadien |
| cloridrato di decilossi-3-idrossi 2 amino-1 propano | 3-Decyloxy-2-hydroxy-1-aminopropan-hydrochlorid |
| 2-Cloro-1,3-butadiene | 2-Chlor-1,3-butadien |
| 1,1,1,2,2,3,4,5,5,5-decafluoropentano | 1,1,1,2,2,3,4,5,5,5-Decafluorpentan |
| 1,2-dibromo-3-cloropropano | 1,2-Dibrom-3-Chlorpropan |
| 1,2-dibromo-3-cloropropano | 1,2-Dibrom-3-chlorpropan |
| 1,3-dicloro-2-propanolo | 1,3-Dichlor-2-propanol |
| 3-3,4-diclorofenil-1,1-dimetilurea | Diuron |
| 1-5-etilsolfonil-1,3,4-tiadiazol-2-il-1,3-dimetilurea | 1-5-Ethylsulfonyl-1,3,4-thiadiazol-2-yl-1,3-dimethylharnstoff |
| 1,1,1,2,3,3,3-eptafluoropropano | 1,1,1,2,3,3,3-Heptafluorpropan |
| 2-etilesan-1,3-diolo | 2-Ethylhexan-1,3-diol |
| 3-isopropil-1H-2,1,3-benzotiadiazin-4-3H-one-2,2-diossido | Bentazon |
| 2-metil-1,3-butadiene | Isopren |
| 2-metil-1,3-butadiene | 2-Methyl-1,3-butadien |
| 6-metil-1,3-ditiolo4,5-bchinossalin-2-one | 6-Methyl-1,3-dithiolo4,5-bquinoxalin-2-on |
| 6-metil-1,3-ditiolo4,5-bchinossalin-2-one | Chinomethionat |
| 1-metil-3-nitro-1-nitrosoguanidina | 1-Methyl-3-nitro-1-nitrosoguanidin |
| 3-monocloro-1,2-propanediolo | 3-Monochlor-1,2-propandiol |
| 1,1,1,3,3‐pentafluorobutano | 1,1,1,3,3-Pentafluorbutan |
| 1-4-terbutifenil-34-metossifenil-1-3 propanedione | 1-4-tert-Butylphenyl-3-4-methoxyphenylpropan-1,3-dion |
| 1,3-propanosultone | 1,3-Propansulton |
| 1,3-propansultone | 1,3-Propansulton |
| 1-propene-2-cloro-1,3-diol-diacetato | 1-Propen-2-chlor-1,3-diol-diacetat |
| 1,3-propiolattone | 3-Propanolid |
| 1,3-propiolattone | 1,3-Propiolacton |
| 1,2,3,6-tetraidro-N-1,1,2,2-tetracloroetiltioftalimmide) | CaptafolISO |
| 1,2,3,6-tetraidro-N-1,1,2,2-tetracloroetiltioftalimmide) | 1,2,3,6-Tetrahydro-N-1,1,2,2-tetrachlorethylthio |
| 2,4,6-trianilina-p-carbo-2'-etilesile-1'ossi-1,3,5-triazina | 2,4,6-Trianilin-p-carbo-2'-ethylhexyl-1'-oxi-1,3,5-triazin |
| 1,2,3-tricloropropano | 1,2,3-Trichlorpropan |
| 1,3,5-trimetilbenzene | Mesitylen |
| 1,3,5-trimetilbenzene | 1,3,5-Trimethylbenzol |
