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40072-65-9

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40072-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40072-65-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,0,7 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40072-65:
(7*4)+(6*0)+(5*0)+(4*7)+(3*2)+(2*6)+(1*5)=79
79 % 10 = 9
So 40072-65-9 is a valid CAS Registry Number.

40072-65-9Downstream Products

40072-65-9Relevant articles and documents

Conformational evaluation and detailed 1H and 13C NMR assignments of eremophilanolides

Burgueno-Tapia, Eleuterio,Hernandez, Luis R.,Resendiz-Villalobos, Adriana Y.,Joseph-Nathan, Pedro

, p. 887 - 892 (2007/10/03)

Extensive application of 1D and 2D NMR methodology, combined with molecular modeling, allowed the complete 1H and 13C NMR assignments of eremophilanolides from Senecio toluccanus. Comparison of the experimental 1H, 1H coupling constant values with those generated employing a generalized Karplus-type relationship, using dihedral angles extracted from MMX and DFT calculations, revealed that the epoxidized eremophilanolides 1 and 2 show conformational rigidity at room temperature, whereas molecules 3-6, containing an isolated double bond, are conformationally mobile. Copyright

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