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913719-87-6

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913719-87-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 913719-87-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,3,7,1 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 913719-87:
(8*9)+(7*1)+(6*3)+(5*7)+(4*1)+(3*9)+(2*8)+(1*7)=186
186 % 10 = 6
So 913719-87-6 is a valid CAS Registry Number.

913719-87-6Relevant articles and documents

Process for preparing 3,3-disubstituted oxindoles and thio-oxindoles

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Page/Page column 14-15, (2008/06/13)

Methods for preparing oxindole and thio-oxindole compounds are provided, which compounds are useful as precursors to useful pharmaceutical compounds. Specifically provided are methods for preparing 5-pyrrole-3,3-oxindole compounds and 5-(7-fluoro-3,3-dimethyl-2-oxo-2,3-dihydro-1H-indol-5-yl)-1-methyl-1H-pyrrole-2-carbonitrile. Also provided are methods for preparing iminobenzo[b]thiophene and benzo[b]thiophenone compounds.

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