133407-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133407-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,4,0 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 133407-69:
(8*1)+(7*3)+(6*3)+(5*4)+(4*0)+(3*7)+(2*6)+(1*9)=109
109 % 10 = 9
So 133407-69-9 is a valid CAS Registry Number.
133407-69-9Relevant academic research and scientific papers
Asymmetric synthesis of the C-3/C-9 fragment of (-) aspicilin
Solladie, Guy,Fernandez, Inmaculada,Maestro, Carmen
, p. 509 - 512 (2007/10/02)
The optically active C-3/C-9 fragment of (-) aspicilin is synthesized by reduction of an allylic β-keto sulfoxide followed by hydroxylation of the double bond.
