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78993-90-5

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78993-90-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78993-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,9 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 78993-90:
(7*7)+(6*8)+(5*9)+(4*9)+(3*3)+(2*9)+(1*0)=205
205 % 10 = 5
So 78993-90-5 is a valid CAS Registry Number.

78993-90-5Relevant articles and documents

Synthesis of Heterocyclic Compounds: Part XXVI - 3,6-Diaryl-3,4-dihydro-1,3,2-oxazaphosphorin-2-oxides

Modak, A. S.,Gogte, V. N.,Tilak, B. D.

, p. 907 - 913 (2007/10/02)

3,4-Dihydro-1,3,2-oxazaphosphorin-2-oxides (4a-r) have been prepared by the interaction of aryl β-aryl/alkylaminoethyl ketones (3a-r) with POCl3/Et3N.Various reactions of these compounds, which represent a new ring system, are reported.Few of these compou

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