CAS 16104-97-5

PET Impurity 4

CAS: 16104-97-5

Formula: C₅₀H₄₀O₂₀

Molecular weight: 960.85

Ref: 4Z-P-418004

Ethylene Terephthalate Cyclic Pentamer-d20

Controlled Product

CAS: 16104-97-5

Formula: C₅₀D₂₀H₂₀O₂₀

Color and Shape: White To Off-White

Molecular weight: 980.96

Ref: TR-E918187

Ethylene Terephthalate Cyclic Pentamer

CAS: 16104-97-5

Applications Ethylene Terephthalate Cyclic Tetramer is an impurity in the synthesis of Ethylene Terephthalate Cyclic Trimer (E917715). Ethylene Terephthalate Cyclic Trimer can be used as migration indicators into foods and simulants, for microwave-active materials,
References Castle, L., et al.: Food Addit. Contam., 7, 779 (1990)

Formula: C₅₀H₄₀O₂₀

Color and Shape: Light Yellow

Molecular weight: 960.841

Ref: TR-E918185

Ethylene terephthalate cyclic pentamer-d20

CAS: 16104-97-5

The ethylene terephthalate cyclic pentamer is a polyester that is used in the manufacture of polyester fibers and polyester films. It is extracted from the raw material, which is a mixture of dimethyl terephthalate, ethylene glycol, and 1,4-butanediol. The extruder heats the raw material to 240°C in order to convert it into its liquid form. The crystallization process takes place at room temperature and produces a white solid product called oligomer. Extraction removes impurities from the oligomer by washing it with water. Linear polyester is obtained by heating the purified oligomer at 260°C for 40 minutes, while extruded polyester undergoes a heat treatment of 230°C for 20 minutes. Extrusion produces pellets that are then processed into filaments or sheets.

Formula: C₅₀H₂₀D₂₀O₂₀

Purity: Min. 95%

Molecular weight: 980.96 g/mol

Ref: 3D-RAA10497