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693259-91-5

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693259-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 693259-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,3,2,5 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 693259-91:
(8*6)+(7*9)+(6*3)+(5*2)+(4*5)+(3*9)+(2*9)+(1*1)=205
205 % 10 = 5
So 693259-91-5 is a valid CAS Registry Number.

693259-91-5Downstream Products

693259-91-5Relevant articles and documents

SYNTHESIS OF DERIVATIVES OF GINKGOLIDE C

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Page/Page column 62, (2010/02/11)

The subject invention provides ginkgolide C derivatives compounds having the structure: wherein R is H or -A-Ar, where A is an alkyl group; and Ar is an aryl group, which may contain heteroatoms and may be unsubstituted or substituted by one to five substituents each selected from the group consisting of hydrogen, alkoxy, -CH2CO2R, and - CH2CONRR; where R is an alkyl group; and R and R are each, independently, hydrogen or a branched or unbranched alkyl group; wherein R is H or -COR, where R is alkyl, aryl or amino; wherein R is present or absent, and when present is H, COR or -CO-Z-R; where R is alkyl, aryl or amino; andZ is oxygen; wherein R is present or absent, and when present is -COR; where R is alkyl or aryl; wherein only one of R or R is present in the compound; wherein only two of R, R, R and R are H; and wherein each of a and b designates a single covalent bond which is present or absent, where bond a is present when R is absent and bond b is present when R is absent; or an optically pure enantiomer of the compound. Additionally, the subject invention provides methods of inhibiting the activity of a glycine receptor using these compounds.

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