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199170-97-3

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199170-97-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199170-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,1,7 and 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 199170-97:
(8*1)+(7*9)+(6*9)+(5*1)+(4*7)+(3*0)+(2*9)+(1*7)=183
183 % 10 = 3
So 199170-97-3 is a valid CAS Registry Number.

199170-97-3Relevant articles and documents

v-Triazolines. Part 38. New synthesis of 4-aminoquinazolines and 6-aminopurines

Erba, Emanuela,Sporchia, Daniela

, p. 3021 - 3024 (1997)

2-Alkyl-4-arylaminoquinazolines 6 have been prepared by condensation of N-(2-cyanophenyl)amidines 5 with arylamines. The amidines 5 were obtained by thermal rearrangement of N-(2-cyanophenyl)-5-morpholino-v-triazolines 4. The synthesis has been applied to the preparation of 2-alkyl-6-arylaminopurines 12.

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