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1619929-45-1

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1619929-45-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1619929-45-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,9,9,2 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1619929-45:
(9*1)+(8*6)+(7*1)+(6*9)+(5*9)+(4*2)+(3*9)+(2*4)+(1*5)=211
211 % 10 = 1
So 1619929-45-1 is a valid CAS Registry Number.

1619929-45-1Relevant articles and documents

Pyrrole–aminopyrimidine ensembles: Cycloaddition of guanidine to acylethynylpyrroles

Budaev, Arsalan B.,Ivanov, Andrey V.,Petrova, Olga V.,Sagitova, Elena F.,Sobenina, Lyubov N.,Trofimov, Boris A.,Ushakov, Igor A.

, (2021/06/16)

An efficient method for the synthesis of pharmaceutically prospective pyrrole–aminopyrimidine ensembles (in up to 91% yield) by the cyclocondensation of easily available acylethynylpyrroles with guanidine nitrate has been developed. The reaction proceeds

From 4,5,6,7-tetrahydroindoles to 3- or 5-(4,5,6,7-tetrahydroindol-2-yl) isoxazoles in two steps: A regioselective switch between 3- and 5-isomers

Sobenina, Lyubov N.,Tomilin, Denis N.,Gotsko, Maxim D.,Ushakov, Igor A.,Mikhaleva, Albina I.,Trofimov, Boris A.

, p. 5168 - 5174 (2014/07/08)

(4,5,6,7-Tetrahydroindol-2-yl)alkynes, synthesized by cross-coupling of 4,5,6,7-tetrahydroindoles with aroyl(hetaroyl)bromoalkynes or ethyl bromopropynoate in the presence of K2CO3, regioselectively cyclize with hydroxylamine to eith

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