148903-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 148903-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,9,0 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 148903-20:
(8*1)+(7*4)+(6*8)+(5*9)+(4*0)+(3*3)+(2*2)+(1*0)=142
142 % 10 = 2
So 148903-20-2 is a valid CAS Registry Number.
148903-20-2Relevant academic research and scientific papers
Lactones, XXIII: Synthesis and stereochemistry of 'γ-lactonized' butyrophenone-type neuroleptics
Lehmann,Radwansky
, p. 51 - 55 (2007/10/02)
'γ-Lactonized' neuroleptics (1,2a-c) can be obtained by reaction of α-formyl, α-carboxy- and α-methylene-lactones 5-7a,b with amines 8a-c. 6a, 1a-c were cis/trans-mixtures with predominating cis-compounds, 6b, 2a cis/trans-mixtures with predominating tran
