155127-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155127-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,1,2 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 155127-21:
(8*1)+(7*5)+(6*5)+(5*1)+(4*2)+(3*7)+(2*2)+(1*1)=112
112 % 10 = 2
So 155127-21-2 is a valid CAS Registry Number.
155127-21-2Relevant academic research and scientific papers
The Chemistry of Pyrrolic Compounds. LXIX. A Synthesis of One of the Naturally Occurring Benzoporphyrins
Clezy, Peter S.,Leung, Christopher W. F.
, p. 1705 - 1710 (2007/10/02)
The naturally occurring benzoporphyrin (1a) has been prepared by ring synthesis utilizing an oxidative cyclization of an intermediate bilene-b to assemble the porphyrin macrocycle.
