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90947-02-7

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90947-02-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90947-02-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,4 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90947-02:
(7*9)+(6*0)+(5*9)+(4*4)+(3*7)+(2*0)+(1*2)=147
147 % 10 = 7
So 90947-02-7 is a valid CAS Registry Number.

90947-02-7Relevant articles and documents

METHOD FOR ACETYLATING 5-AMINO-2,4,6-TRIIODOISOPHTHALIC ACID DERIVATIVE

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Page/Page column 5, (2008/06/13)

A method for producing a 5-acetamide-2,4,6-triiodoisophthalic acid derivative comprising acetylating a 5-amino-2,4,6-triiodoisophthalic acid derivative in an organic solvent in the presence of an acid catalyst using acetic anhydride is disclosed. By the convenient method, a 5-acetamide-2,4,6-triiodoisophthalic acid derivative with a high yield and high quality can be provided.

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