| Label | Id | |
|---|---|---|
| Poly(oxytetramethylene) | 53450 | |
| PBO | 53450 | |
| polytetrahydrofuran | 53450 | |
| Poly(oxy-1,4-butylene) glycol | 53450 | |
| Poly(oxybutylene) glycol | 53450 | |
| Poly(tetramethylene ether) | 53450 | |
| Poly(tetramethylene glycol) | 53450 | |
| Poly(tetramethylene oxide) | 53450 | |
| Polybutylene glycol | 53450 | |
| Polytetramethylene glycol | 53450 | |
| poly(butylene oxide) | 53450 |