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1011269-20-7

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1011269-20-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1011269-20-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,1,2,6 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1011269-20:
(9*1)+(8*0)+(7*1)+(6*1)+(5*2)+(4*6)+(3*9)+(2*2)+(1*0)=87
87 % 10 = 7
So 1011269-20-7 is a valid CAS Registry Number.

1011269-20-7Relevant articles and documents

Iridium-Catalyzed Highly Regioselective Azide-Ynamide Cycloaddition to Access 5-Amido Fully Substituted 1,2,3-Triazoles under Mild, Air, Aqueous, and Bioorthogonal Conditions

Song, Wangze,Zheng, Nan

supporting information, p. 6200 - 6203 (2017/11/24)

A highly regioselective method to access 5-amido fully substituted 1,2,3-triazoles by iridium-catalyzed azide-ynamide cycloaddition under mild, air, aqueous, and bioorthogonal conditions is reported. The excellent regioselectivities may derive from the strong coordination between the carbonyl oxygen of ynamide and the -acidic iridium. Since the iridium ion is insensitive to oxygen/water and exhibits low cytotoxicity, it could catalyze this reaction in both organic and biological environments efficiently. Preparation in gram-scale and application in carbohydrates highlight this method.

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