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1639120-86-7

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1639120-86-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1639120-86-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,9,1,2 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1639120-86:
(9*1)+(8*6)+(7*3)+(6*9)+(5*1)+(4*2)+(3*0)+(2*8)+(1*6)=167
167 % 10 = 7
So 1639120-86-7 is a valid CAS Registry Number.

1639120-86-7Downstream Products

1639120-86-7Relevant articles and documents

A one-pot saponification-coupling sequence suitable for C-terminus peptide elongation using lithium carboxylates

Azzouz, Rabah,Petit, Sylvain,Rouchet, Jean-Baptiste,Bischoff, Laurent

, p. 1843 - 1846 (2014/08/18)

An efficient procedure has been developed for the saponification of common peptide esters, followed by straightforward coupling of the lithium carboxylate. Adding some water to the reaction medium gave faster saponification and did not interfere with the coupling reagent. As peptide chemistry constitutes a major application of the amidation reaction, amino acid substrates were chosen for this study, monitoring both yields and epimerization of the peptides obtained. Georg Thieme Verlag Stuttgart New York.

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