152840-81-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 152840-81-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,8,4 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 152840-81:
(8*1)+(7*5)+(6*2)+(5*8)+(4*4)+(3*0)+(2*8)+(1*1)=128
128 % 10 = 8
So 152840-81-8 is a valid CAS Registry Number.
InChI:InChI=1/C5H11NO2/c1-3(2)4(6)5(7)8/h3-4H,6H2,1-2H3,(H,7,8)/i5+1
152840-81-8Relevant articles and documents
Stereoselective synthesis of stable isotope-labeled L-α-amino acids: Electrophilic amination of oppolzer's acyl sultams in the synthesis of L-[15N]alanine, L-[15N]valine, L-[15N]leucine, L-[15N]phenylalanine and
Lodwig,Unkefer
, p. 239 - 248 (1996)
Using 1-chloro-1-[15N]nitrosocyclohexane, we have prepared five L-[α-15N]amino acids. The stereoselective electophillic hydroxyamination of (S)-acylbornane-10,2-sultams, followed by Zn(o)/H+ reduction, and alkaline cleavag