43040-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 43040-91-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,0,4 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 43040-91:
(7*4)+(6*3)+(5*0)+(4*4)+(3*0)+(2*9)+(1*1)=81
81 % 10 = 1
So 43040-91-1 is a valid CAS Registry Number.
43040-91-1Relevant academic research and scientific papers
Synthesis of Verruculotoxin
Williams, Robert M.,Brunner, Eduard J.,Sabol, Mark R.
, p. 963 - 966 (2007/10/02)
The mycotoxic alkaloid verruculotoxin (2) has been synthesized from (S)-phenylalanine and pipecolinic acid.A selective method to reduce a dioxopiperazine to an oxopiperazine is described.
