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1117976-76-7

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1117976-76-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1117976-76-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,1,7,9,7 and 6 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1117976-76:
(9*1)+(8*1)+(7*1)+(6*7)+(5*9)+(4*7)+(3*6)+(2*7)+(1*6)=177
177 % 10 = 7
So 1117976-76-7 is a valid CAS Registry Number.

1117976-76-7Relevant articles and documents

New chiral derivatizing agents: Convenient determination of absolute configurations of free amino acids By 1H NMR

Kurosu, Michio,Li, Kai

supporting information; experimental part, p. 911 - 914 (2009/08/07)

The chiral carbonate reagents 5 allow for the direct and unambiguous determination of the absolute configurations of a wide range of free amino acids using 1H NMR. By using a ~3:1 mixture of (S)-5 and (R)-5, absolute configurations of the corresponding carbamates are determined by only analyzing the nitrogen protons.

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