3049-19-2 Usage
General Description
Phosphonic acid, butyl-, diphenyl ester is a chemical compound that is commonly used as a flame retardant in various polymer products. It is a white crystalline solid with a molecular formula of C20H27O3P. This chemical is also used as a plasticizer and as an additive in the production of PVC, rubber, and other plastic materials to improve their flexibility, durability, and flame resistance. Phosphonic acid, butyl-, diphenyl ester is known for its high thermal stability and low volatility, making it a suitable choice for applications requiring fire-resistant properties. However, it is important to handle this chemical with caution, as it may pose health hazards and environmental risks if not used and disposed of properly.
Check Digit Verification of cas no
The CAS Registry Mumber 3049-19-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,0,4 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3049-19:
(6*3)+(5*0)+(4*4)+(3*9)+(2*1)+(1*9)=72
72 % 10 = 2
So 3049-19-2 is a valid CAS Registry Number.
3049-19-2Relevant articles and documents
DBU-promoted alkylation of alkyl phosphinates and H-phosphonates
Gavara, Laurent,Petit, Christelle,Montchamp, Jean-Luc
supporting information, p. 5000 - 5003 (2012/11/07)
The alkylation of alkyl phosphinates and some H-phosphonate diesters is promoted by the base DBU. Only more reactive alkyl halides react in preparatively useful yields. However, the method provides easy access to important H-phosphinate building blocks, without the need for a protecting group strategy or metal catalysts. The reaction is conveniently conducted at, or below, room temperature. The preparation of methyl-H-phosphinate esters is particularly interesting as it avoids the heretofore more common use of methyldichlorophosphine MePCl2.
