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100072-91-1

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100072-91-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100072-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,0,7 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 100072-91:
(8*1)+(7*0)+(6*0)+(5*0)+(4*7)+(3*2)+(2*9)+(1*1)=61
61 % 10 = 1
So 100072-91-1 is a valid CAS Registry Number.

100072-91-1Downstream Products

100072-91-1Relevant articles and documents

STRUCTURES IN SOLUTION OF ADDUCTS OF 2,8-DIOXA-5-AZA-1-PHOSPHABICYCLOOCTANE AND SUBSTITUTED BENZILS

Denney, Donald B.,Denney, Dorothy Z.,Pastor, Stephen D.

, p. 191 - 198 (2007/10/02)

Adducts of 2,8-dioxa-5-aza-1-phosphabicyclooctane and p,p'-dimethylbenzil, p-methoxy-p'-fluorobenzil, p-fluorobenzil, p,p'-difluorobenzil, p-nitrobenzil and p,p'-dinitrobenzil have been prepared.Although these materials could not be isolated in pure form because of rapid decomposition, the 31P and other NMR spectral data indicate that all of these materials are pentacoordinate in solution.The NMR data also indicate that all of these adducts undergo rapid intramolecular ligand reorganosation at room temperature.Variable temperature NMR measurements indicate that these rearrangements can be slowed and that they all have virtually the same activation energies, ΔG(excit.) 11.4-11.9 kcal/mole.The barrier to ligand reorganization is associated with the 5-membered dioxa containing ring adopting a diequatorial disposition.These results are discussed and compared to other systems.

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