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175657-38-2

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175657-38-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 175657-38-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,6,5 and 7 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 175657-38:
(8*1)+(7*7)+(6*5)+(5*6)+(4*5)+(3*7)+(2*3)+(1*8)=172
172 % 10 = 2
So 175657-38-2 is a valid CAS Registry Number.

175657-38-2Relevant articles and documents

Synthesis of the stabilized active metabolite of clopidogrel

Bluet, Guillaume,Blankenstein, Jorg,Brohan, Eric,Prévost, Céline,Chevé, Michel,Schofield, Joseph,Roy, Sébastien

, p. 3893 - 3900 (2014/06/09)

The convergent synthesis of the stabilized active metabolite of clopidogrel was achieved in eleven steps from commercially available 1,2,3,6- tetrahydropyridine and 2-bromo-3′-methoxy acetophenone (MPBr). This synthetic route used a standard Horner-Wadsworth-Emmons reaction allowing the introduction of a Z exocyclic double bond. A selective hydrolysis of an acrylic methyl ester moiety, isolated by an efficient and reliable preparative chiral chromatography at gram scale, released the title compound with a 98% LC purity and d.e. >99%.

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