98997-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98997-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,9 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98997-21:
(7*9)+(6*8)+(5*9)+(4*9)+(3*7)+(2*2)+(1*1)=218
218 % 10 = 8
So 98997-21-8 is a valid CAS Registry Number.
98997-21-8Relevant academic research and scientific papers
A Facile Conversion of Amino Acids to Guanidino Acids
Miller, Audrey E.,Bischoff, Judith J.
, p. 777 - 779 (2007/10/02)
The conversion of amino acids to guanidino acids by the action of aminoiminomethanesulfonic acids (2a-c) is reported.Compounds 2a-c were synthesized by peracetic acid oxidation of the corresponding thioureas.
