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1196988-03-0

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1196988-03-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1196988-03-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,6,9,8 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1196988-03:
(9*1)+(8*1)+(7*9)+(6*6)+(5*9)+(4*8)+(3*8)+(2*0)+(1*3)=220
220 % 10 = 0
So 1196988-03-0 is a valid CAS Registry Number.

1196988-03-0Relevant articles and documents

Privileged structures: Synthesis and structural investigations on tricyclic sulfonamides

Altamura, Maria,Fedi, Valentina,Giannotti, Danilo,Paoli, Paola,Rossi, Patrizia

, p. 2219 - 2231 (2011/04/23)

Customized synthetic procedures for the obtainment of highly functionalizable free sulfonamide tricyclic structures having NH, O, S and SO2 (Z group) in the central seven-membered ring are presented. Due to the role that tricycles and the sulfonamide group play in medicinal chemistry, attention have been also paid to the 3D arrangement of these molecules. Their molecular structures and conformational properties have been studied by single-crystal X-ray diffraction and quantum chemical methods (HF-SCF/6-311+G(d,p). The minimum energy geometries in the solid state (I, Z = O; II, Z = NH and III, Z = S, SO2) have been compared with the minimum-energy geometries in the gas phase (invariably the type III geometry) and discussed with respect to the literature reference values. An effort was made to correlate the conformational differences observed in the solid-state and gas-phase with the nature of the Z grouping.

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