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14640-02-9

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14640-02-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14640-02-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,6,4 and 0 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 14640-02:
(7*1)+(6*4)+(5*6)+(4*4)+(3*0)+(2*0)+(1*2)=79
79 % 10 = 9
So 14640-02-9 is a valid CAS Registry Number.

14640-02-9Downstream Products

14640-02-9Relevant articles and documents

Synthesis and spectral properties of 1,2,5-thiadiazolo-, 1,2,5-selenadiazolo-, and benzo-fused β-phenyl-substituted porphyrazines

Stuzhin,Pimkov,Ul'-Khak,Ivanova,Popkova,Volkovich,Kuz'Mitskii,Donzello

experimental part, p. 1854 - 1863 (2009/09/29)

Cross cyclotetramerization of trans-2,3-diphenylbutanedinitrile with 1,2,5-thia(selena)diazole-3,4-dicarbonitriles or phthalodinitrile in the presence of magnesium butoxide gave mixtures of Mg(II) porphyrazine complexes which were treated with trifluoroac

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