Diethyl [(diethanolamino)methyl]phosphonate      CAS # 2781-11-5

Molecular weight


Equivalent weight NA
Formula C9H22NO5P
Toxicity/Safety See MSDS of Supplier
Appearance yellowish to brownish liquid
Viscosity at 25C* (77F),   mPas 150 - 200
Specific gravity, 25C,  77F, g/ml 1.16 
Regulatory Inventory .
CAS REGISTRY NUMBER #   2781-11-5 NAME :  Phosphonic acid, [[bis(2-hydroxyethyl)amino]methyl]-, diethyl ester
DSL Canada Yes
EINECS Europe EINECS No. 220-482-8   Yes
ASIA-PAC Australia, China, Japan, Korea, Philippines, and Taiwan   Yes
ENCS Japan ENCS No. 2-1979X, No. 2-1979   Yes
ECL Korea ECL Serial No. KE-03186   Yes
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.
Other names: 
Diethyl [N,N-bis(2-hydroxyethyl)amino]methanephosphonate
Diethyl [[bis(2-hydroxyethyl)amino]methyl]phosphonate
Diethyl [[N,N-bis(2-hydroxyethyl)amino]methyl]phosphonate
Commercial Products or generic terms used for products. For manufacturer see Additives MFCT.
Some of these products are marketed as antioxidants and not as chain extender
Adeka FC 450 FC 450 Fyrol 6 Levagard 4090
Some of these product names might not be commercial anymore, the product names still might be in old formulations

Last edited on:

July 11, 2006

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