7040-23-5 Usage
Uses
Dimethyl Diglycolate is an starting material in the manufacture of unsaturated polyester resins and plasticizers.
Check Digit Verification of cas no
The CAS Registry Mumber 7040-23-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,0,4 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7040-23:
(6*7)+(5*0)+(4*4)+(3*0)+(2*2)+(1*3)=65
65 % 10 = 5
So 7040-23-5 is a valid CAS Registry Number.
7040-23-5Relevant articles and documents
Carbonylation of formaldehyde with zeolite catalysts
Barri, Sami A. I.,Chadwick, David
, p. 749 - 753 (2011)
Carbonylation of formaldehyde with carbon monoxide over zeolite catalysts has been investigated. Compared with resins (Amberlyst-15 and Amberlyst-70), and phosphotungstic acid, the zeolite catalysts especially ZSM-5 showed very high selectivity to methyl glycolate. The selectivity of ZSM-5 was maintained to high temperature up to 200 °C.
