Polyethylene terephthalate

聚对苯二甲酸乙二酯

Also known as: PET, PETE, Poly(ethylene terephthalate), Poly(oxy-1,2-ethanediyloxycarbonyl-1,4-phenylenecarbonyl), Polyethylene glycol terephthalate

Polyethylene terephthalate (CAS 25038-59-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula (C10H8O4)n and a molecular weight of 192.17 g/mol. It is also known as PET, PETE and Poly(ethylene terephthalate). Key properties include a melting point of 250-255 °C and a density of 1.68 g/mL at 25 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25038-59-9
Jingsj CID
J-35496-7
Molecular Formula
(C10H8O4)n
Chinese Name
聚对苯二甲酸乙二酯
Molecular Weight
192.17 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point250-255 °C
Density1.68 g/mL at 25 °C

Frequently Asked Questions

What is the CAS number of Polyethylene terephthalate?

The CAS number of Polyethylene terephthalate is 25038-59-9.

What are the molecular formula and molecular weight of Polyethylene terephthalate?

Polyethylene terephthalate has molecular formula (C10H8O4)n and molecular weight 192.17 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Polyethylene terephthalate (CAS 25038-59-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35496-7 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.