Poly(butylene terephthalate)

聚对苯二甲酸丁二醇酯

Also known as: POLY(1,4-BUTYLENE TEREPHTHALATE), 1,4-BUTYLENE TEREPHTHALATE POLYMER, 1,4-Benzenedicarboxylic acid, 1,4-dimethyl ester, polymer with 1,4-butanediol, 1,4-Butanediol/dimethyl terephthalate copolymer, Dimethyl terephthalate 1,4-butanediol polymer, Poly(1,4-butylene terephthalate) average Mv ~38,000, pellets, dimethyl terephthalate/ 1,4-butylene glycol copolymer

Poly(butylene terephthalate) (CAS 30965-26-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H18O5 and a molecular weight of 266.290 g/mol. It is also known as POLY(1,4-BUTYLENE TEREPHTHALATE), 1,4-BUTYLENE TEREPHTHALATE POLYMER and 1,4-Benzenedicarboxylic acid, 1,4-dimethyl ester, polymer with 1,4-butanediol. Key properties include a melting point of 2.9 °C, a boiling point of 459.3±45.0 °C at 760 mmHg, a density of 1.31 g/mL at 25 °C(lit.) and a flash point of 171.7±22.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

30965-26-5

Jingsj CID

J-1530282-1

Molecular Formula

C₁₄H₁₈O₅

Chinese Name

聚对苯二甲酸丁二醇酯

Molecular Weight

266.290 g/mol

Category

Organic Acids

Last updated

8/21/2026