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136583-40-9

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136583-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136583-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,5,8 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 136583-40:
(8*1)+(7*3)+(6*6)+(5*5)+(4*8)+(3*3)+(2*4)+(1*0)=139
139 % 10 = 9
So 136583-40-9 is a valid CAS Registry Number.

136583-40-9Downstream Products

136583-40-9Relevant articles and documents

Nitroacetyl Group as a Peptide Synthon: Synthesis of Dipeptides with an α,α-Bisallylglycine Residue at the N-Terminus

Manjunatha, Sulur G.,Chittari, Pabba,Rajappa, Srinivasachari

, p. 1071 - 1080 (2007/10/02)

N-Nitroacetyl derivatives of L-proline, L-valine, and L-phenylalanine esters were prepared in two steps under mild conditions (Scheme 2).Regiospecific mono- and bis-allylation of these nitroacetyl derivatives were accomplished in presence of a Pd(0) catalyst.The bis-allyl derivatives 7-9 were obtained in 40-75 percent yield.The tertiary NO2 group in these compounds could be transformed into an acetylamino group by Zn/AcOH/Ac2O.The final products 11-13 are dipeptides in which the N-terminal glycine residue bears two α-allyl substituents.

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