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97693-15-7

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97693-15-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97693-15-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,6,9 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 97693-15:
(7*9)+(6*7)+(5*6)+(4*9)+(3*3)+(2*1)+(1*5)=187
187 % 10 = 7
So 97693-15-7 is a valid CAS Registry Number.

97693-15-7Downstream Products

97693-15-7Relevant articles and documents

Reactions of Ethyl 4-Chloro-5-pyrimidinecarboxylates with 2-Aminopyridine. Synthesis of 5H-Pyridopyrimidopyrimidin-5-ones and 5H-Pyridopyrimidopyrimidin-5-ones and Rearrangement of the Former to the Latter

Kim, Dong Han

, p. 173 - 176 (2007/10/02)

5H-Pyridopyrimidopyrimidin-5-ones IVa,b and 5H-pyridopyrimidopyrimidin-5-ones Va,b were synthesized from ethyl 4-chloro-5-pyrimidinecarboxylate and 2-aminopyridine.The former compounds were obtained directly upon heating the reactants in ethanol, and the latter were prepared by the fusion of ethyl 4-(2-pyridylamino)-5-pyrimidinecarboxylates obtained as minor products from the above reaction.The angular fused cyclic compounds IVa,b were rearranged to the linear tricycles Vb-f upon heating with amines.

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