149457-51-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149457-51-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,4,5 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 149457-51:
(8*1)+(7*4)+(6*9)+(5*4)+(4*5)+(3*7)+(2*5)+(1*1)=162
162 % 10 = 2
So 149457-51-2 is a valid CAS Registry Number.
149457-51-2Relevant academic research and scientific papers
A general and simple synthesis of phosphindoles
Markl,Jin,Berr
, p. 3103 - 3106 (2007/10/02)
A first simple and general synthesis of phosphindoles by intramolecular cyclisation of secondary o-phosphinotolanes is described.