INDOPOL H-1900 is a polybutene oligomer that can be used as an excipient in pharmaceutical formulations. INDOPOL H-1900 has properties such as low viscosity and high purity that make it suitable for use in liquid oral dosage forms. Its low pour point of 21°C allows it to remain fluid at room temperature. The product has very low levels of impurities such as metals, chlorine and sulfur making it highly suitable for applications where purity is critical. INDOPOL H-1900's resistance to degradation and stability over a wide range of temperatures also make it well-suited as an excipient for products with long shelf lives. The properties of INDOPOL H-1900 such as clarity and low turbidity can be beneficial in formulations where visual appearance is important.