103993-83-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103993-83-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,9 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 103993-83:
(8*1)+(7*0)+(6*3)+(5*9)+(4*9)+(3*3)+(2*8)+(1*3)=135
135 % 10 = 5
So 103993-83-5 is a valid CAS Registry Number.
103993-83-5Relevant academic research and scientific papers
STEREOCHEMISTRY OF THE Ph3P-CCl4 MEDIATED CYCLIZATION OF CARBOXYLIC ACIDS 1,2-AMINO ALCOHOLS (VORBRUGGEN METHOD)
Meyers, A.I.,Hoyer, Denton
, p. 4687 - 4690 (2007/10/02)
In contrast to a previous report, β-hydroxy amides formed via the Ph3P-CCl4 condensation of acids and amino alcohols, cyclize to oxazolines with complete inversion of the carbinol center.
