850850-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 850850-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,0,8,5 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 850850-20:
(8*8)+(7*5)+(6*0)+(5*8)+(4*5)+(3*0)+(2*2)+(1*0)=163
163 % 10 = 3
So 850850-20-3 is a valid CAS Registry Number.
850850-20-3Relevant articles and documents
Novel diepoxide derivatives of diallyl phenolics
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Page/Page column 2, (2010/02/11)
The present invention relates to the preparation of ethers and esters of diallylphenols and the epoxidation of the diallyl moiety to provide bis-epoxide ether and ester intermediates useful in the preparation of epoxy resins.