122590-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 122590-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,5,9 and 0 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 122590-09:
(8*1)+(7*2)+(6*2)+(5*5)+(4*9)+(3*0)+(2*0)+(1*9)=104
104 % 10 = 4
So 122590-09-4 is a valid CAS Registry Number.
122590-09-4Relevant articles and documents
Process for the preparation of phenoxy phthalic anhydrides
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, (2008/06/13)
Phenoxy phthalic anhydrides are prepared by the reaction of a fluorophthalic anhydride with a phenol compound in the presence of potassium fluoride and a polar, aprotic solvent.