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1404118-68-8

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1404118-68-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1404118-68-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,4,1,1 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1404118-68:
(9*1)+(8*4)+(7*0)+(6*4)+(5*1)+(4*1)+(3*8)+(2*6)+(1*8)=118
118 % 10 = 8
So 1404118-68-8 is a valid CAS Registry Number.

1404118-68-8Downstream Products

1404118-68-8Relevant articles and documents

PROCESS FOR THE PRODUCTION OF ETRAVIRINE

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, (2013/05/21)

A novel process for the preparation of Etravirine comprises the condensing of ethyl cyanoacetate with N-cyanophenylguanidine to obtain an —OH compound of formula (II), which is further converted to a leaving group of formula (III). The compound of formula (III) is optionally protected and brominated to yield compound of formula (IV). The condensation of formula (IV) with 3,5-dimethyl-4-hydroxybenzonitrile yields a compound of formula (VI), and an optional deprotection of the compound of formula (VI) results in Etravirine.

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