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71703-26-9

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71703-26-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71703-26-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,0 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 71703-26:
(7*7)+(6*1)+(5*7)+(4*0)+(3*3)+(2*2)+(1*6)=109
109 % 10 = 9
So 71703-26-9 is a valid CAS Registry Number.

71703-26-9Relevant articles and documents

Syntheses of 5-chlorouracils/thymines with 1-[phosphono(methyl/ difluoromethyl)]-1,2-unsaturated-moiety-substituted methyl groups at N(1) and human thymidine phosphorylase inhibitory activity

Birck, Matthew R.,Clinch, Keith,Gainsford, Graeme J.,Schramm, Vern L.,Tyler, Peter C.

experimental part, p. 823 - 838 (2009/08/14)

By attaching (methyl)- or (difluoromethyl)-phosphonate groups to the 1-positions of ethene, cyclopentene or benzene, and attaching 1-(methyl)-5-chlorouracil or 1-(methyl)thymine groups to the corresponding 2-positions, compounds 1 - 5 were prepared as pot

Imidazopyridine compounds and processes for preparation thereof

-

, (2008/06/13)

The invention relates to an imidazopyridine compound of the formula: STR1 wherein R1 is lower alkynyl, lower alkynyloxy(lower)alkyl or N,N-di(lower)alkylamino(lower)alkynyl, R2 is lower alkyl, R3 is mono (or di or tri)-phenyl(lower)alkyl substituted by one or more substituent(s) selected from cyano, carbamoyl, mono (or di or tri(phenyl(lower)alkylamino, acylamino, carboxy, esterified carboxy, hydroxy, hydroxy(lower)alkyl, acyloxy(lower)alkyl, acyloxy, mono (or di or tri)phenyl(lower)alkoxy, lower alkoxy(lower)alkoxy, tetrahydropyranyloxy, and acylamino(lower)alkyl or mono (or di or tri) phenyl(lower)alkyl substituted by lower alkyl and one additional substituent selected from hydroxy(lower)alkyl, amino, N-lower alkyl-N-acylamino, mono (or di or tri)phenyl(lower)alkylamino, acylamino and lower alkylamino, and R4 is hydrogen or lower alkyl, and a pharmaceutically acceptable salt thereof, useful in the treatment of ulcers.

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