80503-95-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80503-95-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,5,0 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 80503-95:
(7*8)+(6*0)+(5*5)+(4*0)+(3*3)+(2*9)+(1*5)=113
113 % 10 = 3
So 80503-95-3 is a valid CAS Registry Number.
80503-95-3Relevant academic research and scientific papers
Simple Three-Step Synthesis of (R)- and (S)-4-Amino-3-hydroxybutanoic Acid (GABOB) by Stereoselective Aldol Addition
Braun, Manfred,Waldmueller, Delia
, p. 856 - 858 (2007/10/02)
A simple synthesis of both (R)- and (S)-GABOB (5) is reported.In the key step, doubly deprotonated (R)- or (S)-2-Hydroxy-1,2,2-triphenylethyl acetate (HYTRA) (1) is added to Cbz-protected glycinal (2).
