22156-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22156-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,5 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 22156-21:
(7*2)+(6*2)+(5*1)+(4*5)+(3*6)+(2*2)+(1*1)=74
74 % 10 = 4
So 22156-21-4 is a valid CAS Registry Number.
22156-21-4Relevant articles and documents
Cobalt-Catalyzed Decarboxylative Acetoxylation of Amino Acids and Arylacetic Acids
Xu, Kun,Wang, Zhiqiang,Zhang, Jinjin,Yu, Lintao,Tan, Jiajing
supporting information, p. 4476 - 4478 (2015/09/28)
The first cobalt-catalyzed decarboxylative acetoxylation reaction was accomplished. This methodology is applicable to a wide range of amino acids and arylacetic acids.