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444144-01-8

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444144-01-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 444144-01-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,1,4 and 4 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 444144-01:
(8*4)+(7*4)+(6*4)+(5*1)+(4*4)+(3*4)+(2*0)+(1*1)=118
118 % 10 = 8
So 444144-01-8 is a valid CAS Registry Number.

444144-01-8Downstream Products

444144-01-8Relevant articles and documents

Cyclization of nitriles: LIX. Synthesis and properties of 1-(2-thienyl)-4-cyano-5,6,7,8-tetrahydro-3(2H)-isoquinolinethione derivatives. Molecular and crystal structure of 3-isobutylsulfanyl-1-(2-thienyl)-4-cyano-5,6,7,8-tetrahydroisoquinoline

Lozinskii,Chernega,Shelyakin

, p. 1661 - 1665 (2007/10/03)

By condensation of 2-(2-thenoyl)-1-cyclohexanone with cyanothioacetamide a new compound of a series of chalcogen-containing isoquinolines with a thiophene fragment in its structure was prepared. It was demonstrated that alkylation of the compound with haloalkanes and their derivatives, in particular with those having electron-withdrawing substituents furnished 3-alkylthio-4-cyano-5,6,7,8-tetrahydroisoquinolines. Some of the latter underwent cyclization into 3-amino-2-R-5-(2-thienyl)-6,7,8,9-tetrahydrothieno[2,3-c]-isoquinoline.

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