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160422-18-4

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160422-18-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 160422-18-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,0,4,2 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 160422-18:
(8*1)+(7*6)+(6*0)+(5*4)+(4*2)+(3*2)+(2*1)+(1*8)=94
94 % 10 = 4
So 160422-18-4 is a valid CAS Registry Number.

160422-18-4Relevant articles and documents

2-(4-Nitrophenyl)sulfonylethoxycarbonyl (Nsc) Group As a Base-Labile α-Amino Protection for Solid Phase Peptide Synthesis

Samukov, Vladimir V.,Sabirov, Aydar N.,Pozdnyakov, Pavel I.

, p. 7821 - 7824 (1994)

Base-labile 2-(4-nitrophenylsulfonyl)ethoxycarbonyl (Nsc) group is proposed for a temporary α-amino protection in the solid phase peptide synthesis.Nsc-Group is cleaved by organic bases in aprotic solvents under mild conditions similar to that used for Fmoc-group.Several Nα-Nsc amino acids are prepared and used in the solid phase synthesis of the fragment 307-318 of S-protein from bovine eye retina.

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