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389889-02-5

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389889-02-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 389889-02-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,9,8,8 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 389889-02:
(8*3)+(7*8)+(6*9)+(5*8)+(4*8)+(3*9)+(2*0)+(1*2)=235
235 % 10 = 5
So 389889-02-5 is a valid CAS Registry Number.

389889-02-5Downstream Products

389889-02-5Relevant articles and documents

Ester derivatives

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Page/Page column 25, (2008/06/13)

This invention relates to compounds which exhibit selective muscarinic M3 receptor antagonism, have little side effects, are suitable for inhalation therapy and are useful as treating agents of respiratory system diseases, of the general formula (I); 1[in which A signifies a group expressed by a formula (a0) or (b0); 2Ar signifies optionally substituted aryl or heteroaryl; B1 and B2 signify aliphatic hydrocarbon; R1 signifies fluorine-substituted cycloalkyl; R2, R3 and R4 signify lower alkyl, single bond or alkylene bonded to B1, or R2 and R3 are united to signify alkylene; R5 and R7 signify hydrogen, lower alkyl, or a single bond or alkylene bonded to B2; R6 signifies hydrogen, lower alkyl or a group expressed as —N(R8)R9; and X?signifies an anion].

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