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1278521-31-5

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1278521-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1278521-31-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,8,5,2 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1278521-31:
(9*1)+(8*2)+(7*7)+(6*8)+(5*5)+(4*2)+(3*1)+(2*3)+(1*1)=165
165 % 10 = 5
So 1278521-31-5 is a valid CAS Registry Number.

1278521-31-5Downstream Products

1278521-31-5Relevant articles and documents

The study of Friedel-Crafts alkylation reaction of thiophenes with glyoxylate imine catalyzed by Fe(III): An easy access to α-aminoesters

Huang, Zhong,Zhang, Jingchang,Wang, Nai-Xing

, p. 1788 - 1791 (2011)

A Friedel-Crafts alkylation reaction of thiophenes with glyoxylate imine was developed to give α-aminoesters. In the presence of FeCl 3·6H2O as the catalyst, various α-aminoesters were prepared with moderate to high yields (up to 95%

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