| Butb - Butyk | Nummer |
| But-1-en | 6 |
| But-2-en | |
| (E)- / (Z)- But-2-en | |
| iso-Buten | |
| 2-Butenal | 16 /
# (19a+c) / # 6 Augen / # 21 Haut |
| (E)-2-Butenal | 14 /
# (19a+c) / # 6 Augen / # 21 Haut |
| 1,4-Butendiol | 16 |
| 2-Butenol | 10 |
| 1,2-Butenoxid | 14 / 19a / # 21 Haut |
| 2-Butensäure | 2 |
| 3-Butensäure | |
| 3-(But-2-enyl)-2-methyl-4-oxo-cyclo-penten-2-enyl-2,2-di- methyl-3-(3-methoxy-2-methyl-3-oxo-prop-1-enyl)-cyclo- propan-carboxylat |
14 |
| 3-(But-2-enyl)-2-methyl-4-oxo-cyclo-pent-2-enyl-2,2-di- methyl-3-(2-methylprop-1-enyl)-cyclo-propan-carboxylat |
|
| 1- / 2- Butin | 6 |
| But-2-in-1,4-diol | 14 / 18 / 19 /
# 21 Haut / Über MAK 19b |
| 3-Butin-2-ol | 14 |
| Butobarbital | |
| Butocarboxim | 14 / 18 / 19 |
| Butocarboxim-sulfoxid | |
| Butonat | 16 |
| Butopiprin | |
| Butoxy-carboxim | 14 / 18 / 19 |
| 1–Butoxy-2,3-epoxy-propan | 16 / selten 18 / 19 / # (19a+c) / # 21 Haut |
| 1-tert-Butoxy-2,3-epoxy-propan | 16 / 18 / 19 / # (19a+c) / # 21 Haut |
| 2-Butoxy-ethanol | 16 / 19 /
# 21 Haut / Über AGW-BGW 19b |
| 2-(2-Butoxy-ethoxy)-ethanol | 16 /
Über AGW 19b / # 30 Akut / # 47 Augen |
| 2-[2-(2-Butoxy-ethoxy)-ethoxy]-ethanol | 16 / # 6 Augen |
| 2-(2-Butoxy-ethoxy)-ethyl-acetat | 16 |
| 2-(2-Butoxy-ethoxy)-ethyl-thiocyanat | 14 / 18 / 19 |
| 2-Butoxy-ethyl-acetat | 16 / 18 / 19 /
21 Haut / Über AGW-BGW 19b |
| Butoxyl | 16 / # 48 Akut |
| 4-[3-(4-Butoxy-phenoxy)-propyl]-morpholin Hydrochlorid | 16 |
| Butoxy-polyethylen-propylen-glykol | |
| 1-tert-Butoxy-propan-2-ol | 16 / # 6 Augen |
| 3-Butoxy-2-propanol | 16 |
| 1-(2-Butoxy-propoxy)-2-propanol | |
| Butoxy-tri-ethylen-glycol | 16 / # 6 Augen |
| Butralin | 16 / 13 / 18 / 19 |
| Butterblume | # 227 + |
| Buttersäure | 2 / 19 |
| Buttersäure, Natriumsalz | 16 |
| Buttersäure-amylester | |
| n-Buttersäure-anhydrid | 2 / 19 |
| Buttersäure-butylester | 16 / 19 |
| Buttersäure-chlorid | 2 |
| Buttersäure-ethylester | 16 |
| Buttersäuremethylester | |
| Buttersäure-pentachlor-phenylester | |
| Buttersäure-propylester | |
| Buttersäure-(1,2,2,2-tetra-chlorethyl)-ester | |
| Buturon |