Polypropylene glycol-polytetramethylene glycol copolymer, CAS # 25302-85-6
This graph illustrates the relationship of molecular weight to hydroxyl number and equivalent weight of a diol.
Regulatory Inventory
CAS REGISTRY NUMBER #25302-85-6 NAME : Furan, tetrahydro-, polymer with methyloxirane
EINECS Europe   No
ENCS Japan   No
ECL Korea ECL Serial No. KE-33459 Yes
AICS Australia No
Other names: 
Propylene oxide-tetrahydrofuran copolymer, Propylene oxide-tetrahydrofuran polymer, Propylene oxide-tetramethylene oxide polymer, Propylene oxide-THF copolymer 1,4-butanediol ether, Propylene oxide-THF polymer,  Tetrahydrofuran-propylene oxide copolymer
The fact that a compound is not listed under a specific CAS # in a countries inventory does not mean this compound cannot be used, it can be an exempt compound or polymer which does not require listing, or it can be listed in a different category. Ask your supplier.
Commercial Products or generic terms used for products. For manufacturer see Polyether MFCT.
Most manufacturer use either MW or Hydroxyl number as a part of their code to identify products.

Color codes indicates what methods of identification was used.

Molecular weight
Hydroxyl number
. Uncertain
Laprol 1000 Laprol 1102
PPTG 1000 PPTG 2000
Some of these product names might not be commercial anymore, the product names still might be in old formulations

Last edited on:

July 06, 2006

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