402847-57-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 402847-57-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,8,4 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 402847-57:
(8*4)+(7*0)+(6*2)+(5*8)+(4*4)+(3*7)+(2*5)+(1*7)=138
138 % 10 = 8
So 402847-57-8 is a valid CAS Registry Number.
402847-57-8Relevant articles and documents
Acridone-dicarboxylic acids
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, (2008/06/13)
Certain acridone and xanthone compounds, each of which is 2-substituted by a carboxyl group or a salt, ester or optionally substituted amide thereof and each of which is optionally substituted in the 5-, 6-, 7- or 8-position, by a second carboxyl group, s