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109276-75-7

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109276-75-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109276-75-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,7 and 6 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109276-75:
(8*1)+(7*0)+(6*9)+(5*2)+(4*7)+(3*6)+(2*7)+(1*5)=137
137 % 10 = 7
So 109276-75-7 is a valid CAS Registry Number.

109276-75-7Downstream Products

109276-75-7Relevant articles and documents

CONCISE SYNTHESES OF L-SELENOMETHIONINE AND OF L-SELENOCYSTINE USING RADICAL CHAIN REACTIONS

Barton, Derek H. R.,Bridon, Dominique,Herve, Yolande,Potier, Pierre,Thierry, Josiane,Zard, Samir Z.

, p. 4983 - 4990 (2007/10/02)

L-Selenomethionine and L-selenocystine were prepared in high overall yields from protected L-glutamic and L-aspartic acid derivatives respectively.Irradiation of the mixed anhydrides (esters) derived from 4 (e.g. 15) in the presence of dimethyldiselenide provided the protected L-selenomethionine 16 directly.We have shown that triselenocyanide Se3(CN)2 can serve as an efficient selenocyanating agent for radicals; the selenocyanide group is a good precursor for the diselenide moiety of L-selenocystine.

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