81429-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81429-52-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,2 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81429-52:
(7*8)+(6*1)+(5*4)+(4*2)+(3*9)+(2*5)+(1*2)=129
129 % 10 = 9
So 81429-52-9 is a valid CAS Registry Number.
81429-52-9Relevant articles and documents
On the Esterification of Glyceraldehyde Diethyl Acetal with some Amino Acids
Angrick, Michael,Rewicki, Dieter
, p. 366 - 371 (2007/10/02)
Glyceraldehyde diethylacetal was selectively esterified in the 2- and 3-position, respectively, by several Z-amino acids.Attempts to remove the protective groups usually result in hydrogenolytic or hydrolytic cleavage of the ester bond.
