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668990-82-7

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668990-82-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 668990-82-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,9,9 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 668990-82:
(8*6)+(7*6)+(6*8)+(5*9)+(4*9)+(3*0)+(2*8)+(1*2)=237
237 % 10 = 7
So 668990-82-7 is a valid CAS Registry Number.

668990-82-7Relevant articles and documents

A 4 - methoxy pyrrole intermediate preparation method

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Paragraph 0025; 0027, (2019/07/10)

The present invention provides 4 - methoxy pyrrole intermediate preparation method, comprises the following steps: (1) of formula (I) compound 2, 4 - difluorobenzaldehyde with formula (II) compound to the [...] sulfonic acid in the alkaline solvent and th

Cycloalkyl-[4-(difluorophenyl)-oxazol-5-yl]-triazolo-pyridines

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Page 21, (2010/02/06)

The present invention relates to novel cycloalkyl-[4-(difluorophenyl)-oxazol-5-yl]triazolo-pyridines, to intermediates for their preparation, to pharmaceutical compositions containing them and to their medicinal use. The compounds of the present invention are potent inhibitors of MAP kinases, preferably p38 kinase. They are useful in the treatment of inflammation, osteoarthritis, rheumatoid arthritis, cancer, reperfusion or ischemia in stroke or heart attack, autoimmune diseases and other disorders.

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