273747-93-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 273747-93-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,3,7,4 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 273747-93:
(8*2)+(7*7)+(6*3)+(5*7)+(4*4)+(3*7)+(2*9)+(1*3)=176
176 % 10 = 6
So 273747-93-6 is a valid CAS Registry Number.
273747-93-6Relevant articles and documents
Preparation of N-Tritylamino Acids from N-Trimethylsilylamino Acid Trimethylsilyl Esters
Mamos, Petros,Sanida, Chariklia,Barlos, Kleomenis
, p. 1083 - 1084 (2007/10/02)
Persilylated amino acids are used to prepare Nα-tritylamino acids 2,4, and 6 in high yields by cleavage of the Si-N bond with trityl chloride in chloroform under reflux.The side chains of Lys, Orn and Cys are simultaneously tritylated while sil
