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289711-63-3

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289711-63-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 289711-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,9,7,1 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 289711-63:
(8*2)+(7*8)+(6*9)+(5*7)+(4*1)+(3*1)+(2*6)+(1*3)=183
183 % 10 = 3
So 289711-63-3 is a valid CAS Registry Number.

289711-63-3Downstream Products

289711-63-3Relevant articles and documents

Synthesis of 2-alkylthio-substituted 4-oxo-3-p-tolyl-3,4,5,6-tetrahydrospiro(benzo[h]quinazoline-5,1′- cycloalkanes)

Markosyan,Kuroyan,Karapetyan

, p. 1451 - 1454 (2007/10/03)

Reaction of 4-amino-3-carbethoxy-1,2-dihydrospiro(naphthalene-2,1′-cycloalkanes) with p-tolylisothiocyanate gave 4-oxo-2-thioxo-3-p-tolyl-1,2,3,4,5,6-hexahydro(benzo[h]quinazoline-5,1′- cycloalkanes) which could be alkylated using various halo compounds t

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