1243264-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1243264-55-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,3,2,6 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1243264-55:
(9*1)+(8*2)+(7*4)+(6*3)+(5*2)+(4*6)+(3*4)+(2*5)+(1*5)=132
132 % 10 = 2
So 1243264-55-2 is a valid CAS Registry Number.
1243264-55-2Relevant articles and documents
METHOD FOR PRODUCING CARBOXYLIC ANHYDRIDE AND ARYLBORONIC ACID COMPOUND
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Page/Page column 15, (2012/01/13)
When phthalic acid is heated in heptane under azeotropic reflux conditions in the presence of a catalytic amount of an arylboronic acid compound (such as 2,6-(diisopropylaminomethyl)phenylboronic acid or 2,6-bis(diisopropylaminomethyl)phenylboronic acid), phthalic anhydride is obtained in high yield.
