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857645-71-7

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857645-71-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 857645-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,6,4 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 857645-71:
(8*8)+(7*5)+(6*7)+(5*6)+(4*4)+(3*5)+(2*7)+(1*1)=217
217 % 10 = 7
So 857645-71-7 is a valid CAS Registry Number.

857645-71-7Upstream product

857645-71-7Downstream Products

857645-71-7Relevant articles and documents

ORNITHINE DERIVATIVES AS PROSTAGLANDIN E2 AGONISTS OR ANTAGONISTS

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Page/Page column 48, (2010/02/12)

Ornithine derivatives of the formula (I): wherein X is -CO- or -(CH2) k- (wherein k is 1, 2 or 3); Y is Z-(CH2) n-, and the like; {wherein Z is R1-CO-NR4-, and the like, (wherein R1 is aryl, and the like; and R4 is hydrogen, or lower alkyl); and n is 1, 2, 3, 4, 5 or 6}; R2 is aryl-(lower alkyl), and the like; R3 is -Q-R7, [wherein Q is -CO- or -SO2-, R7 is heterocyclyl], and the like; and R5 and R6 are independently hydrogen or lower alkyl; or a pharmaceutically acceptable salt thereof, which are useful as medicament.

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