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83999-15-9

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83999-15-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83999-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,9 and 9 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83999-15:
(7*8)+(6*3)+(5*9)+(4*9)+(3*9)+(2*1)+(1*5)=189
189 % 10 = 9
So 83999-15-9 is a valid CAS Registry Number.

83999-15-9Downstream Products

83999-15-9Relevant articles and documents

Condensation-Cyclization of Acetoacetanilides with 1,3,5-Trinitrobenzene. Formation and Structure of Some Stable Delocalized Anions Containing the Bicyclononane Skeleton

Gnanadoss, Lalitha Mary,Radha, N.

, p. 570 - 574 (2007/10/02)

A series of new bicyclic anions containing the bicyclononane skeleton have been prepared from 1,3,5-trinitrobenzene and carbanions derived from substituted acetoacetanilides.The condensation-cyclizations are initiated by triethylamine.A mechanistic picture for the cyclization is shown as proceeding through a delocalized carbanion intermediate.

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