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77097-05-3

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77097-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77097-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,0,9 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77097-05:
(7*7)+(6*7)+(5*0)+(4*9)+(3*7)+(2*0)+(1*5)=153
153 % 10 = 3
So 77097-05-3 is a valid CAS Registry Number.

77097-05-3Downstream Products

77097-05-3Relevant articles and documents

Multiple Diamine-Dialdehyde Condensations. Synthesis of Heterocyclic Dodecalenes.

Rabinovitz, Mordecai,Agranat, Israel,Shaw, Wu-Chang

, p. 3018 - 3020 (1981)

The diamine-dialdehyde condensation of biphenyl-2,6,2',6'-tetracarbaldehyde (6) and 2,2'-diaminobiphenyl (3) in benzene (TsOH catalyst) gave the tetra Schiff base 9,15,24,30-tetraazahexabenzododecalene (4). 10,14,25,29-Tetraazadodecalene (5) was prepared analogously from 2,6,2',6'-tetraaminobiphenyl (7) and biphenyl-2,2'-dicarbaldehyde (2).The condensation of 6 with o-phenylenediamine and with 2,3-diaminonaphthalene afforded "hydride shift" products 10 and 13.The geometries of 4 and 5 are briefly discussed.

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