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1409917-68-5

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1409917-68-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1409917-68-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,9,9,1 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1409917-68:
(9*1)+(8*4)+(7*0)+(6*9)+(5*9)+(4*1)+(3*7)+(2*6)+(1*8)=185
185 % 10 = 5
So 1409917-68-5 is a valid CAS Registry Number.

1409917-68-5Relevant articles and documents

Silyl-based alkyne-modifying linker for the preparation of C-terminal acetylene-derivatized protected peptides

Strack, Martin,Langklotz, Sina,Bandow, Julia E.,Metzler-Nolte, Nils,Albada, H. Bauke

, p. 9954 - 9958 (2013/01/15)

A novel linker for the synthesis of C-terminal acetylene-functionalized protected peptides is described. This SAM1 linker is applied in the manual Fmoc-based solid-phase peptide synthesis of Leu-enkephalin and in microwave-assisted automated synthesis of Maculatin 2.1, an antibacterial peptide that contains 18 amino acid residues. For the cleavage, treatment with tetramethylammonium fluoride results in protected acetylene-derivatized peptides. Alternatively, a one-pot cleavage-click procedure affords the protected 1,2,3-triazole conjugate in high yields after purification.

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