156280-93-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156280-93-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,2,8 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 156280-93:
(8*1)+(7*5)+(6*6)+(5*2)+(4*8)+(3*0)+(2*9)+(1*3)=142
142 % 10 = 2
So 156280-93-2 is a valid CAS Registry Number.
156280-93-2Relevant academic research and scientific papers
Total synthesis of phorbazole C
Radspieler, Alexander,Liebscher, Jürgen
, p. 4867 - 4871 (2007/10/03)
The first total synthesis of the marine natural product phorbazole C 1 occurring in the sea sponge Phorbas aff. clathrata is reported. In the key steps of the convergent approach the 3,4-dichloro-5-ethoxycarbonyl-pyrrole-2-carboxylic acid (4) forms an ami
