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126542-43-6

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126542-43-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 126542-43-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,5,4 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 126542-43:
(8*1)+(7*2)+(6*6)+(5*5)+(4*4)+(3*2)+(2*4)+(1*3)=116
116 % 10 = 6
So 126542-43-6 is a valid CAS Registry Number.

126542-43-6Downstream Products

126542-43-6Relevant articles and documents

Synthesis of substituted fused pyridines, pyrazines and pyrimidines by sequential Ugi/inverse electron demand Diels-Alder transformations

Akritopoulou-Zanze, Irini,Wang, Ying,Zhao, Hongyu,Djuric, Stevan W.

scheme or table, p. 5773 - 5776 (2009/12/26)

The synthesis of all four regioisomers of fused pyrrolidino-pyridines in a one-pot two-step sequential Ugi-inverse electron demand Diels-Alder reaction is described. Fused pyrrolidino-pyrazines, pyrrolidino-pyrimidines and azepinone pyridines can also be obtained in consecutive synthetic sequences.

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