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1067892-75-4

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1067892-75-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1067892-75-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,6,7,8,9 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1067892-75:
(9*1)+(8*0)+(7*6)+(6*7)+(5*8)+(4*9)+(3*2)+(2*7)+(1*5)=194
194 % 10 = 4
So 1067892-75-4 is a valid CAS Registry Number.

1067892-75-4Relevant articles and documents

The first tandem acetalization/5-exo-dig cyclization of 6-phenylethynylpyrimidine-5-carbaldehydes: Efficient synthesis of 5-alkoxy-(7Z)-7-benzylidene-5,7-dihydrofuro[3,4-d]pyrimidines

Cikotiene, Inga,Morkunas, Marius,Motiejaitis, Dainius,Rudys, Simonas,Brukstus, Algirdas

, p. 1693 - 1697 (2008)

The first example of catalyst-free tandem acetalization/ 5-exo-dig cyclization reactions of 6-phenylethynylpyrimidine-5-carbaldehydes is presented. Efficient novel synthesis of 5,7-dihy-drofuro[3,4-d]pyrimidine core is described. Thieme Stuttgart.

Study on the cyclization of 6-arylethynylpyrimidine-5-carbaldehydes with tert-butylamine: microwave versus thermal preparation of pyrido[4,3-d]pyrimidines

Cikotiene, Inga,Kairys, Visvaldas,Buksnaitiene, Rita,Morkunas, Marius,Rudys, Simonas,Brukstus, Algirdas,Fernandes, Miguel X.

scheme or table, p. 5752 - 5759 (2009/12/01)

Thermal and microwave initiated cyclization of 2,4-disubstituted 6-arylethynylpyrimidine-5-carbaldehydes with tert-butylamine has been studied. A novel high-yielding preparation of 2,4-disubstituted 7-arylpyrido[4,3-d]pyrimidines has been developed. The i

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