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77511-27-4

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77511-27-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77511-27-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,1 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77511-27:
(7*7)+(6*7)+(5*5)+(4*1)+(3*1)+(2*2)+(1*7)=134
134 % 10 = 4
So 77511-27-4 is a valid CAS Registry Number.

77511-27-4Downstream Products

77511-27-4Relevant articles and documents

ONE-POT CYCLIZATION OF A PEPTIDE BY THE USE OF (5-NITROPYRIDYL)DIPHENYL PHOSPHINATE: THE SYNTHESIS OF CYCLIC DECAPEPTIDE GRAMICIDIN S

Mukaiyama, Teruaki,Kamekawa, Kenichi,Watanabe, Yutaka

, p. 1367 - 1370 (2007/10/02)

One-pot synthesis of gramicidin S, cyclic decapeptide, was successfully achieved by treatment of the corresponding linear decapeptide with (5-nitropyridyl)diphenyl phosphinate, a new condensing reagent, in pyridine.Similarly, the phosphinic ester can be successfully employed in the Young test as well as syntheses of dipeptides.

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