Chemistry is traditionally divided into organic and inorganic chemistry. Computed Properties of C4H8O2, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 453-20-3
A series of thiazolo[5,4-d]pyrimidine derivatives of formula (I) or an N-oxide thereof, or a pharmaceutically acceptable salt or solvate thereof: (I) Q represents a group of formula (Qa), (Qb), (Qc), (Qd) or (Qe) are beneficial in the treatment and/or prevention of various human ailments, including inflammatory, autoimmune and oncological disorders; viral diseases; and organ and cell transplant rejection.
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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem