What is (R)-(-)-1,2-Propanediol CAS 4254-14-2？ (R) – (-) -1,2-Propanediol is a colorless to pale yellow transparent liquid. (R) The hydroxyl groups in the structure of 1,2-propanediol have certain nucleophilicity and are prone to undergo nucleophilic substitution reactions with alkyl halides and acyl halides to obtain corresponding ether and ester derivatives. Due to the two hydroxyl groups being in adjacent positions, they can undergo condensation reactions with aldehydes and ketones to form aldehydes or aldehyde compounds. Specification Item Specification Boiling point 186-188 °C765 mm Hg(lit.) Purity 99% Melting point -57C pKa 14.49±0.20(Predicted) Storage conditions Inert atmosphere,Room Temperature Density 1.04 g/mL at 25 °C(lit.) Application (R) – (-) -1,2-Propanediol can be used as a raw material for unsaturated polyester resins and can be combined with glycerol or sorbitol as a wetting agent in cosmetics, toothpaste, and soap. Used in hair dye as a moisture regulator, hair homogenizer, antifreeze, as well as in the glass paper, plasticizer, and pharmaceutical industries. Packing Usually packed in 25kg/drum,and also can be do customized package.
