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228707-09-3

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228707-09-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 228707-09-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,8,7,0 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 228707-09:
(8*2)+(7*2)+(6*8)+(5*7)+(4*0)+(3*7)+(2*0)+(1*9)=143
143 % 10 = 3
So 228707-09-3 is a valid CAS Registry Number.

228707-09-3Relevant articles and documents

Radical-induced formation of some siloles and diazasiloles

Ding, Bangwei,Teng, Zhu,Keese, Reinhart

, p. 8906 - 8910 (2007/10/03)

The Bu3Sn radical-induced reaction of o-iodobenzylvinylsilanes and o-iodoallylsilanes leads to cyclic products in yields of 40-60%. These regioselective cyclizations occur with high preference for a 5-exo and a 7-endo mode with a 6-exo mode being absent. An example for ring closure via a 7-exo mode is described.

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