420847-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 420847-91-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,0,8,4 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 420847-91:
(8*4)+(7*2)+(6*0)+(5*8)+(4*4)+(3*7)+(2*9)+(1*1)=142
142 % 10 = 2
So 420847-91-2 is a valid CAS Registry Number.
420847-91-2Relevant academic research and scientific papers
New routes to α-amino acid β,γ-thioenol ether derivatives
Meffre, Patrick,Durand, Philippe
, p. 287 - 296 (2007/10/03)
Racemic derivatives of α-amino acid β,γ-thioenol ethers have been synthesized from homoserine through a γ-elimination on a sulfoxide derived from aspartaldehyde. Optically active derivatives were efficiently prepared from L-methionine by a Pummerer like r
