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68220-12-2

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68220-12-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68220-12-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,2,2 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 68220-12:
(7*6)+(6*8)+(5*2)+(4*2)+(3*0)+(2*1)+(1*2)=112
112 % 10 = 2
So 68220-12-2 is a valid CAS Registry Number.

68220-12-2Relevant articles and documents

Bifunctional Chelating Agents. Part 2. Synthesis of 1-(2-Carboxyethyl)ethylenediaminetetra-acetic Acid by Ring Cleavage of a Substituted Imidazole

Altman, Janina,Shoef, Nurit,Wilchek, Meir,Warshawsky, Abraham

, p. 59 - 62 (2007/10/02)

The synthesis of 1-(2-carboxyethyl)ethylenediaminetetra-acetic acid, a new bifunctional analogue of ethylenediaminetetra-acetic acid (EDTA) is described.This is carried out via ring-opening benzoylation of ethyl imidazol-4-ylpropanoate, hydrogenation and hydrolysis to 4,5-diaminovaleric acid (DL-γ-ornithine) dihydrochloride, and subsequent alkylation.

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