cas no: 5131-66-8 Butoxypropanol; 1,2-Propylene glycol 1-monobutyl ether; 1-Butoxy-2-propanol; 2-Hydroxy-3-butoxypropane; Propasol solvent B; Propylene glycol monobutyl ether; n-Butoxy-2-propanol; n-Butoxypropanol; 1-Butoxypropan-2-ol; 2-Propanol, 1-butoxy-; [ChemIDplus] PnB; [Reference #1] Dowanol PNB glycol ether; [Dow Chemical MSDS] PGBE;