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188255-05-2

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188255-05-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188255-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,2,5 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 188255-05:
(8*1)+(7*8)+(6*8)+(5*2)+(4*5)+(3*5)+(2*0)+(1*5)=162
162 % 10 = 2
So 188255-05-2 is a valid CAS Registry Number.

188255-05-2Relevant articles and documents

A convergent synthesis of an LTD4 antagonist, RG12525

Sledeski, Adam W.,O'Brien, Michael K.,Truesdale, Larry K.

, p. 1129 - 1132 (2007/10/03)

An efficient, convergent synthesis of an LTD4 antagonist, RG12525 (1) has been achieved through the alkylation of the (2-quinolinylmethoxy)phenol (2) with either a triphenylmethyl protected tetrazole synthon (4a) or with a tetrahydropyranyl derivative (4b). Preparation of synthons 4a and 4b, as well as novel preparation of 2 is described.

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