5281-79-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5281-79-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,8 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5281-79:
(6*5)+(5*2)+(4*8)+(3*1)+(2*7)+(1*9)=98
98 % 10 = 8
So 5281-79-8 is a valid CAS Registry Number.
5281-79-8Relevant academic research and scientific papers
Preparation of 1,1,4,4-tetramethoxy-2-butene
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Page column 5-6, (2010/02/05)
A process for the preparation of 1,1,4,4-tetramethoxy-2-butene by reacting 2,5-dimethoxydihydrofuran with methanol in the presence of acids comprises carrying out the reaction in the presence of solid catalysts having acidic centers.