138748-52-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138748-52-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,4 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138748-52:
(8*1)+(7*3)+(6*8)+(5*7)+(4*4)+(3*8)+(2*5)+(1*2)=164
164 % 10 = 4
So 138748-52-4 is a valid CAS Registry Number.
138748-52-4Relevant academic research and scientific papers
Highly stereoselective aminohydroxylations of exo-2-cyano-7-oxabicyclo[2.2.1]hept-5-en-2-yl acetate
Allemann,Vogel
, p. 923 - 928 (2007/10/02)
Protected forms of exo-5-amino-exo-6-hydroxy-7-oxabicyclo[2.2.1]heptan-2-one and of exo-5-amino-endo-6-hydroxy-7-oxabicyclo[2.2.1]heptan-2-one can be obtained readily and with high stereoselectivity from exo-2-cyano-7-oxabicyclo[2.2.1]hept-5-en-2-yl aceta
