109273-23-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109273-23-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,7 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109273-23:
(8*1)+(7*0)+(6*9)+(5*2)+(4*7)+(3*3)+(2*2)+(1*3)=116
116 % 10 = 6
So 109273-23-6 is a valid CAS Registry Number.
109273-23-6Relevant articles and documents
Specific Covalent Fixation of Chelating Agents on Peptides
Sergheraert, Christian,Maes, Pierrette,Tartar, Andre
, p. 1061 - 1064 (2007/10/02)
The synthesis of two selectively protected bifunctional analogues of ethylenediaminetetra-acetic acid (EDTA) is described.In these analogues the four carboxy groups involved in chelation are protected as benzyl or t-butyl esters, while the fifth one, whic
